- Discuss - lists.centos.org

Need help: I219-v driver issue in centos 7 installation
by dibyendukoley1 28 Apr '18

28 Apr '18

Sir, Can any one please help me to install I219-V driver. The driver that is provided by intel that is for freebsd only. I have tried of installing e1000e driver but no luck.... Please help.... Looking forward to you.

2 4

CentOS events for 2018/2019
by Rich Bowen 27 Apr '18

27 Apr '18

TL;DR: What events should we go to? Tell me at https://goo.gl/forms/kLZ2y1H1jRSy4NdC3 (Cross-posting from promo@ mailing list, to get a wider participation. Thanks!) Looking at the coming 12 months, I need some feedback as I select events that need to have a CentOS presence of some kind. While I have already committed to some of these events (See below), starting around July we haven't really signed on for much, and I would like to hear from the community what events you feel we should be at, and why. The why is, by far, the more important half of the question. Why, as in, what story do we want to tell there; who are we trying to tell that story to; what would be a positive outcome from being there. First, here are the events that I am already committed to: May 8-10: Red Hat Summit - https://www.redhat.com/en/summit/2018 June 25-28: ISC-HPC (SuperComputing) Frankfurt - https://www.isc-hpc.com/ October 1-3: cPanel, Houston - https://conference.cpanel.com/ November 12-15: SuperComputing 18, Dallas - https://sc18.supercomputing.org/ February 2-3 (assumed): FOSDEM, Brussels - http://fosdem.org The story at Red Hat Summit is that CentOS (and, specifically, our SIGs) is the platform for innovation, and the source of all of Red Hat's products, as well as projects and products that continue to invent the industry. The story at the SuperComputing events is what I have been tweeting "SuperComputing is #PoweredByCentOS" - which is incontrovertibly true. The top 500 supercomputers in the world are overwhelmingly CentOS. We attend cPanel because the web hosting business, and in particular cPanel-backed sites, are overwhelmingly running on CentOS. FOSDEM - because it's FOSDEM. Events where we could have a presence are, of course, legion. We can continue to do the events that we did last year, and the year before, and that would be fine. Or we can try to visit some other industry segment where we'd like to shine brighter. I've made a Google Form at https://goo.gl/forms/kLZ2y1H1jRSy4NdC3 listing the events that I'm currently considering, but also providing space for you to tell me what events I'm not thinking about yet. Finally, please note that I'm not just talking about me going to stuff, but, rather, identifying the right people that should be at these events, and sending them to represent us - CentOS Ambassadors, if you will. -- Rich Bowen - rbowen(a)redhat.com @RDOcommunity // @CentOSProject // @rbowen

1 0

Re: [CentOS] formating DVR-RW
by Thomas Schmitt 27 Apr '18

27 Apr '18

Hi, i am upstream developer of libburn. Nevertheless, the following is intended to be purely technical info, not advertising. Better do not use wodim with DVD media. It was forked from a CD-only version of cdrecord and got added not-so-skilled code for operating DVD. One should use dvd+rw-tools or a program that has libburn as backend. I am not aware whether cdrecord is meanwhile willing to format DVD-RW. With dvd+rw-tools and according to an old cheat sheet of mine, a DVD-RW gets formatted like this: dvd+rw-format -force /dev/sr0 (Iirc, the option -force was needed if there is already an ISO filesystem on the medium.) libburn's frontend cdrskin has a command line interface that is roughly compatible to wodim or cdrecord. (There are also Xfburn, xorriso, and Brasero's libburn plugin.) A formatting run looks like this: cdrskin -v dev=/dev/sr0 blank=format_overwrite Fred Smith wrote: > Why would one format a cd/dvd? DVD-RW can have two states: unformatted sequential and formatted to "restricted" overwritable. The latter can take 32 KiB chunks of write data at 32 KiB-aligned addresses. It does not have to be blanked before re-use. growisofs and libisoburn can do multi-session on it, like they do with DVD+RW, DVD-RAM, BD-RE. Unformatted DVD-RW behave much like DVD-R (which is good for testing). Blanking them for re-use is only swift if you do not want to do multi-session on the blank medium. For multi-session they must be blanked fully, which lasts as long as a full write run. My own experince since 2004 is that formatted DVD-RW can be re-used more often before they die. Unformatted DVD-RW seem to be less long living. The older the drive, the earlier they fail. Giles Coochey wrote: > In order to delete something that you had previously written to it? Formatted DVD-RW can be used as random access read-write device by help of buffering device /dev/pktcdvd* created by pktsetup(1). But this is an invitation for trouble, as is with the other overwritable optical media types. Random access is slow and the frequent overwriting of particular media blocks reduces life time. (The other overwritable DVD and BD types need no /dev/pktcdvd* because they can be used for addressing with 2 KiB granularity.) Nataraj wrote: > I suggest that you try xorriso. Thank you for flying xorriso. :)) It has a cdrecord-wodim-compatibility mode described in man 1 xorrecord. Formatting is done by: xorrecord -v dev=/dev/sr0 blank=format_overwrite The native command mode is more versatile but demands learning new names and new rules. See man 1 xorriso. xorriso -outdev /dev/sr0 -format as_needed The mode "as_needed" formats what can be formatted and is not formatted yet. It throws no error if the medium is not suitable for formatting. Have a nice day :) Thomas

1 0

Question about "generic" USB <=> Serial Port kernel drivers...
by Robert Heller 27 Apr '18

27 Apr '18

OK, I am running CentOS 6 on my Laptop and Desktop, presently kernel version 2.6.32-696.20.1.el6.x86_64 (yes, a version or so out of date -- I'll probably do an update soon -- non-trivial since my Internet connection is via dialup). I recently bought a couple of Adafruit Arduino compatibles, a Flora and a Metro 328. Hooking up the Flora and the Metro to a Raspberry Pi running Raspbian (kernel 4.9.35-v7+), tells me that the Metro 328's USB uses a FTDI USB serial interface (ftdi_sio.ko) and the Flora uses the cdc_acm (cdc-acm.ko) USB serial interface. Both of these drivers are available with CentOS 6's kernel, but since Adafruit uses their own Vendor & Product IDs and my (old) kernel's ftdi_sio and cdc-acm drivers don't have Adafruit Vendor & Product IDs, the drivers don't automagically connect. The ftdi_sio has parameters for the Vendor & Product IDs, and specifing the product ID for the Metro 328 allows the driver to latch onto the Metro 328's USB connect and things work (I get a /dev/ttyUSB0 device). The cdc-acm does not have any parameters and I don't see any way to get it to connect. I am pretty sure all Adafruit did was change the programming of the USB chip to have their Vendor & Product IDs and the driver should work (the FTDI one does, once the Vendor & Product IDs are passed to it). My question: since the cdc-acm is not parameterized, I am guessing I need to get the kernel module source (from RH's kernel source RPM? Or maybe Elrepo has it?), hack in the Adafruit Vendor & Product IDs into its table of Vendor & Product IDs and recompile it. Is this correct? Also: is there some "trick" that allows me to create a kernel module that will work with kernel updates, without having to re-compile it after every kernel update? -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller(a)deepsoft.com -- Webhosting Services

2 1

Posting check
by Robert Heller 27 Apr '18

27 Apr '18

I am wondering if I am able to post to the CentOS list. -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller(a)deepsoft.com -- Webhosting Services

2 1

Postfix config problem w/ tls
by Chuck Campbell 26 Apr '18

26 Apr '18

I have followed the guides on setting up postfix relay to my account at network solutions. I added these to main.cf: inet_interfaces = localhost relayhost = [mail.mydomain.com]:587 smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_password_maps = hash:/etc/postfix/sasl_password smtp_use_tls = yes smtp_tls_CAfile = /etc/pki/tls/certs/sendmail.pem The username and password are correct, and all these options work fine from thunderbird on a windows box in my local network. I get no errors on postfix restart, but when I try to send an email from the centos box, I get this: Apr 26 17:00:33 host postfix/smtp[10627]: C9C1D80075: to=<campbell(a)somedomain.com>, relay=mail.mydomain.com[xxx.xxx.xxx.xxx]:587, delay=0.87, delays=0.08/0.02/0.72/0.04, dsn=5.0.0, status=bounced (host mail.mydomain.com[xxx.xxx.xxx.xxx] said: 503 you must authenticate first (#5.5.1) (in reply to MAIL FROM command)) Why is tls not authenticating? Under centos 5 I used sendmail, and it all worked just fine. -chuck -- ACCEL Services, Inc.| Specialists in Gravity, Magnetics | (713)993-0671 ph. | and Integrated Interpretation | (713)993-0608 fax 448 W. 19th St. #325| Since 1992 | (713)306-5794 cell Houston, TX, 77008 | Chuck Campbell | campbell(a)accelinc.com | President & Senior Geoscientist | "Integration means more than having all the maps at the same scale!"

1 1

[OFF-TOPIC] Reminder to tighten ALL types of security
by Always Learning 25 Apr '18

25 Apr '18

This posting is off-topic because it is not about Centos. Please refrain from replying to the list as that will generate further off-topic traffic inevitably irritating subscribers. On the balance of probabilities, I think everyone will benefit from reading at least the first 6 pages of a 19 pages English criminal sentencing statement about a child, in England, successfully breaking into the home and business computer systems of top USA CIA, FBI and Homeland Security entities. It is shocking and disquieting. Security is more than a firewall and SELINUX - it is procedures too. When the CIA director is easily hacked and his family pestered, how safe are you and your systems ? In the Crown Court at Leicester (England) The Queen versus Kane Gamble Sentenced at the Central Criminal Court (Old Bailey, London) 20 April 2018 Sentencing remarks of Mr Justice Haddon-Cave https://www.judiciary.gov.uk/judgments/r-v-kane-gamble-sentencing-remarks-o… https://www.judiciary.gov.uk/wp-content/uploads/2018/04/r-v-gamble-sentenci… P. -- Regards, Paul. England, EU. England's place is in the European Union.

1 0

Vmware - Slightly off topic
by Jerry Geis 25 Apr '18

25 Apr '18

Hi All, What is the correct way to provide a CentOS 7 - WMware image for ESX ? As an amateur to VMware - I thought - great I can get VMplayer and ESX should be able to import my image... Wrong... I even went through the trouble of "converting" to VMWare workstation and thinking ESX could import that - Apparently still Wrong... I cannot for the life of me understand how one product family is so incompatible with itself. But that is another story. I just want to be able to provide a pre-built image with CentOS 7 and my other programs on a bootable VMware image that is easily imported into any VMware platform - Workstation, ESX or other. How is that accomplished ? Thanks for your thoughts and experience. Jerry

9 8

Down C6 ALL without torrent ?
by Always Learning 25 Apr '18

25 Apr '18

Hi, I have a machine with a BIOS that does not permit DVD installation. It accepts everything else including some old superseded media types. Is it possible to download C6 combined parts 1 and 2 not using Torrent ? I have an aversion to using anything that comes from unknown sources, as used by Torrent. Thank you. -- Regards, Paul. England, EU. England's place is in the European Union.

11 21

Re: [CentOS] BUG: soft lockup - CPU#0 stuck for 36s! [swapper/0:0]
by KM 25 Apr '18

25 Apr '18

All,This happens on all of our CentOS 7 VMs. but as stated in the email trail, the file softlockup_thresh does not exist. Should it be added? What is the best way to get rid of this behavior. Thanks in advance and sorry if I missed something along the way.KM From: correomm <correomm(a)gmail.com> To: CentOS mailing list <centos(a)centos.org> Sent: Thursday, August 18, 2016 1:55 PM Subject: Re: [CentOS] BUG: soft lockup - CPU#0 stuck for 36s! [swapper/0:0] Yes, I tried it, but does not exists: vmguest # cat /proc/sys/kernel/softlockup_thresh cat: /proc/sys/kernel/softlockup_thresh: No such file or directory On Thu, Aug 18, 2016 at 2:06 PM, Carlos A. Carnero Delgado < carloscarnero(a)gmail.com> wrote: > 2016-08-18 12:39 GMT-04:00 correomm <correomm(a)gmail.com>: > > > This bug is reported only on the VM's with CentOS 7 running on on VMware > > ESXi 5.1. > > The vSphere performance graph shows high CPU consume and disk activity > only > > on VM's with CentOS 7. Sometimes I can not connect remotely with ssh > > (timeout error). > > > > I'm also seeing those errors in several servers, running under 5.5. > Currently investigating if this > <https://kb.vmware.com/selfservice/microsites/search. > do?language=en_US&cmd=displayKC&externalId=1009996> > has anything to do (the resource overcommit bit). > > HTH, > Carlos. > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > https://lists.centos.org/mailman/listinfo/centos > _______________________________________________ CentOS mailing list CentOS(a)centos.org https://lists.centos.org/mailman/listinfo/centos | | Virus-free. www.avg.com |

5 6

VGA connectors fail to work with i915 & 3.10.0-693.21.1.el7.x86_64 kernel
by Gregory P. Ennis 25 Apr '18

25 Apr '18

Everyone, A while back I reported problems with the Intell i915 video driver in an ASUS mother board. I never found a solution, but did find a work around. It is apparent that when the VGA cable is connected during boot time the screen becomes blank and does not allow a login, but if the vga cable is disconnected and the DVI connector on the video screen and motherboard are used everything works as expected. I am posting this so that if others have the same problem they can easily bypass the problem with a DVI cable, and probably an HDMI cable, but I was not able to test the HDMI. Greg Ennis

1 1

Will RHSA-2018:0980 hit Centos repos soon?
by Sean 24 Apr '18

24 Apr '18

Hi all, RH published the advisory 2 weeks ago, according to https://access.redhat.com/errata/RHSA-2018:0980. The main repo does not appear to have the packages noted yet - http://mirror.centos.org/centos/7/updates/x86_64/Packages/ We've been waiting on a few of these bugs to be fixed for some time. I don't mean to be impatient, just looking for an ETA. Thanks for all the great work the team does!

2 1

Libreswan IPSec Protected GRE Tunnel & firewall-cmd
by Adam Tauno Williams 24 Apr '18

24 Apr '18

I am attempting to setup an IPSec protected GRE tunnel with a Cisco router. I believe the IPSec association is up, however I cannot move traffic over the tunnel. It is not clear how to integrate the tunnel interface (gre1) with firewall-cmd; adding the interface to trusted does not appear to 'stick'. [root@aqueduct ~]# firewall-cmd --add-interface=gre1 --zone=trusted The interface is under control of NetworkManager and already bound to 'trusted' The interface is under control of NetworkManager, setting zone to 'trusted'. [root@aqueduct ~]# firewall-cmd --list-all --zone=trusted trusted target: ACCEPT icmp-block-inversion: no interfaces: <<<< nothing ... No traffic ever appears to be received by the GRE interface. 6: gre1@NONE: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1460 qdisc noqueue state UNKNOWN qlen 1 link/gre A.B.C.D peer X.Y.W.Z inet 10.65.1.1 peer 10.65.1.2/32 scope global gre1 valid_lft forever preferred_lft forever inet6 fe80::200:5efe:4acc:1a64/64 scope link valid_lft forever preferred_lft forever [root@aqueduct ~]# ifconfig gre1 gre1: flags=209<UP,POINTOPOINT,RUNNING,NOARP> mtu 1460 inet 10.65.1.1 netmask 255.255.255.255 destination 10.65.1.2 inet6 fe80::200:5efe:4acc:1a64 prefixlen 64 scopeid 0x20<link> unspec 4A-CC-1A-64-00-00-F0-00-00-00-00-00-00-00-00-00 txqueuelen 1 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 146 bytes 12180 (11.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 -- Adam Tauno Williams <mailto:awilliam@whitemice.org> GPG D95ED383 OpenGroupware Developer <http://www.opengroupware.us/>

1 1

OpenVPN server and firewalld
by Kenneth Porter 24 Apr '18

24 Apr '18

How do I insert the iptables rule below using firewalld? I'm moving up from CentOS 6 to 7 on an office gateway and I'm trying to get OpenVPN working to allow home workers to access PCs at the office. I've got it all working but only by manually inserting an ACCEPT rule in the FORWARD iptables chain: iptables -I FORWARD 3 -i tun+ -j ACCEPT This rule was extracted from my iptables firewall under CentOS6. The 3 puts it after the accepts for established connections and loopback connections, but before any firewalld sub-chains. With this I can connect to an internal Windows 10 system with Remote Desktop. How can I inject this rule using firewalld, either as a direct rule or as some more firewalld-approved kind of rule?

5 7

touchpad stopped working in KDE only
by twebb 23 Apr '18

23 Apr '18

I just installed CentOS 7 on a ThinkPad T420s. All went well. Touchpad worked fine at login screen, in Gnome, and in KDE. KDE is my preferred environment, so I began customizing - including configuring the touchpad to accept "Tapping" gestures via System Settings, Input Devices, Touchpad. As soon as I hit "apply", the touchpad stopped responding to cursor movements. The touchpad buttons continue to work, just no cursor movements with touches. Touch pad is still fully functional at login prompt and in Gnome. However, cursor movements stop as soon as KDE desktop (KDE Plasma) starts. Any help would be greatly appreciated. I'm almost ready to just re-install CentOS 7 again and not mess with the touchpad settings ever again, but I figure this must be something simple. Other online solutions have not worked, which is why I'm asking here. Thanks, TW

1 0

USB audio on Centos-7
by Fred Smith 22 Apr '18

22 Apr '18

I'm using Centos-7 on my PC, with ASUS motherboard. internal audio has always worked fine EXCEPT that I can never get audio input (for recording) to work. I want to feed audio from a phono turntable and from a cassette deck. I use a phono preamp for the turntable, or directly connect the tape deck. but either nothing, or low level with horrible distortion. so, I gave up (after years of intermittent battles) and bought a Behringer UFO202, which looks like it should work fine with Linux. It allegedly uses a TI PCM2902 chipset, which many online postings claim works fine with various flavors of Linux. This device has a USB port, a pair of line in and line out jacks, a phono jack, a headphone volume control, and a switch to change the line in to phono in. I can use headphones plugged into the UFO202 to listen to audio playing on the computer, but I cannot for the life of me figure out how to feed audio into the UFO202 (via its line in RCA jacks) and have it come out speakers or phones connected to the computer. I've poked and proded at alsamixer, the mate sound tool, and pavucontrol. No useful results. Pavucontrol, in its input section, does show the device listed, and it shows activity on its level mater when there is audio input via the line in jacks on the UFO202. Disconnect the line input and the activity ceases. (Mate sound control also lists the device, but I don't even get an indication of any input at all, as I described above for pavucontrol.) but I simply cannot figure out how to get that audio to play in any audible way. I know that USB audio input works, because I have a Plantronics USB headset with microphone that I use often to converse online, and it works nicely. (and a possibly separate issue: how the heck does one point Audacity to a USB input? Can't find anything in its UI, and there's darn little help online that is actually helpful, in this regard.) Can you sense my frustration here? I'd appreciate any help that is actually helpful,... perhaps someone who reads this actually has one of these things and has made it work? thanks in advance! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- God made him who had no sin to be sin for us, so that in him we might become the righteousness of God." --------------------------- Corinthians 5:21 ---------------------------------

3 6

Anyone using GQRX in Centos-7, for SDR ?
by Fred Smith 22 Apr '18

22 Apr '18

I gave myself a toy, one of those cheap USB Software Define Radios, and would like to use it on my C7 box. Having wasted some time on it, I gave up and installed Ubuntu on a USB HD so I can boot that to play with SDR. The Ubuntu GQRX installation is well documented and went off without a hitch. but I just hate having to boot something else on my main box (partly because it also runs a mailserver for my personal domain, partly because, well, I just want my box running CentOS, not Ubuntu.) Searching through SDR info on line I see someone has documented installing all the bits for C6, but I suspect the process is different for C7. BTW, I installed the various bits I could find from, er, I think some came from li.nux.ro, some perhaps from epel, on C7, but couldn't get them to properly function. Worse, when the USB radio is unplugged from the system, it locks up hard. then a few days ago, I had been playing with it using the UBUNTU install, did a reboot and for kicks fired up the GQRX on Centos, and lo and behold it worked! I tried running it on Centos yesterday and it reverted to type, i.e., lock up hard. I suspect that Ubuntu is leaving some hardware in a state that allows it to work on a subsequent Centos boot (without poweroff), but no clue what. So, if anyone can point me to how to use it on C7, I'd greatly appreciate it. thanks in advance! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- Show me your ways, O LORD, teach me your paths; Guide me in your truth and teach me, for you are God my Savior, And my hope is in you all day long. -------------------------- Psalm 25:4-5 (NIV) --------------------------------

2 4

question re: ls oddity
by Fred Smith 20 Apr '18

20 Apr '18

Hi all! I use Centos-7 all the time. I also have a Fedora-26 VM that I use only occasionally. Today I noticed that ls on the two systems gives different results when listing the same (networked) directory. the one on fedora 26 shows files with spaces in the names like this: 'CHURCH FAMILY ADDRESS AND PHONE LIST.doc' whereas the one on Centos shows it without the quotes. both systems have the same alias for ls I don't see anything based on a brief excursion of the respective man pages. the one on Centos is version 8.22, and the one on F26 is 8.27, so unless there is some dotfile somewhere that ls refers to for options, this must be a version-change. it seems like a possibly useful feature, one might be able to use that to avoid nasty quoting problems in shellscripts, for instance. Anybody know how that gets enabled? thanks! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- "Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven." ------------------------------ Matthew 7:21 (niv) -----------------------------

2 1

tftpd server S not responding
by Asif Iqbal 19 Apr '18

19 Apr '18

I have a tftpd server S running on centos 7 and managed by systemd It is not respoding to A server which is sending the tftp read request RRQ. I do see the RRQ packets coming from A to S, but S never responds back from a different port Y to A So this part is working fine https://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol#/media/File:Tf… But I do not see any attempts to even send a data packet back in my packet capture running on S So this event is not occuring, as if my tftpd server is dead. I have the firewalld turned off on S to eliminate the possibility that firewalld blocking those packets from reeaching to tftpd daemon. I also turned off selinux to eliminate any permission issue. https://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol#/media/File:Tf… I do have tftpd running and managed by systemd $ systemctl status -l tftp ● tftp.service - Tftp Server Loaded: loaded (/etc/systemd/system/tftp.service; indirect; vendor preset: disabled) Active: active (running) since Wed 2018-03-28 18:57:42 UTC; 1min 44s ago Docs: man:in.tftpd Main PID: 1685 (in.tftpd) Memory: 136.0K CGroup: /system.slice/tftp.service └─1685 /usr/sbin/in.tftpd --verbose --verbosity 10 --secure /tftpboot --port-range 4069:4169 Mar 28 18:57:42 S.example.net systemd[1]: Started Tftp Server. Mar 28 18:57:42 S.example.net systemd[1]: Starting Tftp Server... Any help is appreciated! -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?

5 14

Enterprise company using CentOS
by Mats Bennsäter 19 Apr '18

19 Apr '18

Hi all We are about to create a business case for migrate RHEL to CentOS for all or a subset of our RHEL holdings. I have two questions that I hope to get help answering. 1. I want to get in touch with a company that have done this journey on an Enterprise company. 2. Suggestion/recommendation of vendors that can provide support for CentOs. Scop: North Europe Number of RHEL +8.000 Support 24x7 Thanks //mats

4 5

Nvidia-detect error with on HP Z4 (CentOS 6.9)
by Danny Smit 17 Apr '18

17 Apr '18

Hi all, I'm testing an installation of nvidia drivers on a HP Z4 workstation (nvidia Quadro P600) with CentOS 6.9. Running nvidia-detect with this setup gives the following output: # nvidia-detect Error getting device_class nvidia-detect also quits with exit-code 255. Could this be a bug in nvidia-detect? Or is it an unsupported configuration? The following hardware is detected, it seems some sort of unknown Intel device is detected by the OS: # lspci | grep VGA 00:1f.5 Non-VGA unclassified device: Intel Corporation Device a2a4 21:00.0 VGA compatible controller: NVIDIA Corporation Device 1cb2 (rev a1) # lspci -n | egrep '00:1f.5|21:00.0' 00:1f.5 0000: 8086:a2a4 21:00.0 0300: 10de:1cb2 (rev a1) Tested with the following version (with equal results): nvidia-detect-390.25-1.el6.elrepo.x86_64.rpm nvidia-detect-390.48-1.el6.elrepo.x86_64.rpm -- Regards, Danny

3 6

CentOS 7.4 paniced when running LTP tests
by wuzhouhui 17 Apr '18

17 Apr '18

LTP version: ltp-full-20180118 Kernel version: 3.10.0-693.el7.x86_64 Reproduce procedure: 1. cd ltp-full-20180118; ./configure; make && make install 2. cd /opt/ltp; ./runltp Trace: [ 377.516270] BUG: unable to handle kernel NULL pointer dereference at (null) [ 377.521746] IP: [<ffffffff813510a7>] asn1_ber_decoder+0x327/0xd30 [ 377.525865] PGD 9c6ea067 PUD 66831067 PMD 0 [ 377.529043] Oops: 0000 [#1] SMP [ 377.531454] Modules linked in: ext4 mbcache jbd2 loop ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter snd_seq_midi snd_seq_midi_event sb_edac edac_core coretemp iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw gf128mul glue_helper ablk_helper cryptd vmw_balloon snd_ens1371 snd_rawmidi snd_ac97_codec ac97_bus snd_seq snd_seq_device snd_pcm dm_mod pcspkr joydev snd_timer nfit sg snd vmw_vmci libnvdimm soundcore [ 377.592112] shpchp i2c_piix4 parport_pc parport ip_tables xfs libcrc32c sr_mod cdrom ata_generic pata_acpi sd_mod crc_t10dif crct10dif_generic vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm crct10dif_pclmul crct10dif_common drm crc32c_intel ata_piix mptspi libata scsi_transport_spi e1000 mptscsih serio_raw mptbase i2c_core [ 377.618291] CPU: 1 PID: 32027 Comm: add_key02 Not tainted 3.10.0-693.el7.x86_64 #1 [ 377.624130] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/02/2015 [ 377.632341] task: ffff880134c8bf40 ti: ffff8800b04c8000 task.ti: ffff8800b04c8000 [ 377.638459] RIP: 0010:[<ffffffff813510a7>] [<ffffffff813510a7>] asn1_ber_decoder+0x327/0xd30 [ 377.645145] RSP: 0018:ffff8800b04cbcc0 EFLAGS: 00010206 [ 377.648925] RAX: 000000000000003f RBX: 0000000000000000 RCX: 0000000000000040 [ 377.653499] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000070 [ 377.659151] RBP: ffff8800b04cbda8 R08: 0000000000019bc0 R09: 0000000000000000 [ 377.663875] R10: 0000000000000002 R11: 0000000000000040 R12: 0000000000000000 [ 377.668679] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 377.673414] FS: 00007f57fc60f740(0000) GS:ffff880139640000(0000) knlGS:0000000000000000 [ 377.678827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 377.682732] CR2: 0000000000000000 CR3: 00000000a9a11000 CR4: 00000000001407e0 [ 377.687576] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 377.692430] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 377.698824] Stack: [ 377.701875] ffff880139003be8 0000000000000206 0000000000000202 0000000000000202 [ 377.708840] ffff8800b0535080 ffffffff817167c0 ffff8801356da200 000000000000001c [ 377.716247] ffff8801356da200 ffff8800b04cbd00 0000000000000070 ffffffff81716740 [ 377.723168] Call Trace: [ 377.726482] [<ffffffff811df8c6>] ? kmem_cache_alloc_trace+0x1d6/0x200 [ 377.732479] [<ffffffff812eeea1>] x509_cert_parse+0x91/0x120 [ 377.738012] [<ffffffff812efb86>] x509_key_preparse+0x26/0x280 [ 377.743543] [<ffffffff812ee45b>] asymmetric_key_preparse+0x5b/0xd0 [ 377.749370] [<ffffffff812a57a6>] key_create_or_update+0x146/0x460 [ 377.755015] [<ffffffff812a71a9>] SyS_add_key+0x119/0x240 [ 377.760142] [<ffffffff816b4fc9>] system_call_fastpath+0x16/0x1b [ 377.765606] Code: e0 01 88 85 48 ff ff ff 74 0d 4c 3b 9d 78 ff ff ff 0f 84 99 fd ff ff 48 8b b5 78 ff ff ff 49 8d 43 ff 48 39 f0 0f 86 90 06 00 00 <41> 0f b6 04 34 48 8d 7e 01 48 89 bd 60 ff ff ff 88 45 86 83 e0 [ 377.788713] RIP [<ffffffff813510a7>] asn1_ber_decoder+0x327/0xd30 [ 377.794403] RSP <ffff8800b04cbcc0> [ 377.798198] CR2: 0000000000000000

1 0

rpc.statd is not running but is required for remote locking.
by marcos sr 16 Apr '18

16 Apr '18

Hello I'm trying to mount a nfs system. But i receive this message: mount -t nfs <IP>:/backup /backupnfs mount.nfs: rpc.statd is not running but is required for remote locking. mount.nfs: Either use '-o nolock' to keep locks local, or start statd. mount.nfs: an incorrect mount option was specified After a fews searchs on google i tried to execute the files: sbin/rpc.statd /usr/sbin/start-statd

3 2

Create CentOS 6 system as "clone" of another - with LVM and different disk sizes
by Toralf Lund 16 Apr '18

16 Apr '18

Hi, I just found myself having to set up a new CentOS 6 system with a nearly identical configuration to an existing host, so I thought I would just 1. Do a minimal install to set up partitions etc. on the new system. 2. Create an image of the existing system using Clonezilla (http://www.clonezilla.org) 3. Run a Clonezilla restore on the new system. - as I though it would be a lot simpler than replicating the exact package selection, installing the same users, doing the same manual config edits (which are required) etc. It turns out that it wasn't quite as easy, though. The problem is that the system use LVM2 volumes for the filesystems, and the new host has a slightly smaller disk than the other, and Clonezilla seems unable to restore to a volume that's smaller than the one that was cloned - even if the actual data fits. I guess I could temporarily reduce the LVM volume sizes on the existing units and clone again, but I'd rather not if I can avoid it. Just copying file-by-file could be an option, too, but I somehow feel less comfortable doing that than the above; there is something about the way I could end up with a mixture of my "minimal install" and the "cloned" data, I suppose. Does anyone have any other ideas about how I might achieve what I want? - Toralf

3 5

Wich is best for backup? nfs of iscsi?
by marcos sr 14 Apr '18

14 Apr '18

Hello I have a CentOS VM with a lots of inodes, and 500GB +/-, running under hyper-v . Which is best for backup them? What is the pros and cons? Thanks for attention.

4 4

YUM4/DNF for CentOS updates announcement
by Marek Blaha 13 Apr '18

13 Apr '18

I am pleased to announce some significant updates to our ConfigManagement Special Interest Group for YUM4. This provides YUM4, based on DNF technology, for testing on CentOS Linux 7/x86_64. These updates are based on feedback from our prior test release last October. It includes signed packages, core DNF plugins, and uses a version of RPM very similar to and compatible with the upcoming version of CentOS 7.5. This initiative is based on a partnership with the upstream YUM and DNF maintainers for the future of package management. Our testing thus far indicates no major problems, but we would love to find out how it fits into your existing YUM 3 workflows. So please consider filling out the short survey - your feedback helps us all get better. YUM 4 provides significant improvements such as fast dependency resolution and a stable, documented API. See the references below for detailed improvements. We have made every effort to preserve the existing end-user experience that is available with YUM 3. This is the primary reason for making YUM 4 available for testing now. For detailed information and instructions to install YUM4 on your CentOS machine, please visit our wiki: https://wiki.centos.org/SpecialInterestGroup/ConfigManagementSIG/YUM4 And remember to submit feedback in the short survey to help us understand how it can be improved further: https://goo.gl/forms/H1SL1HaEjdV9EUGH3 Many thanks to the CentOS Project team for their assistance in making this happen! Regards, Marek Blaha

1 0

Help with yum
by Paul R. Ganci 13 Apr '18

13 Apr '18

I just did a fresh minimal install of centos 7 on new hardware. While playing around with window systems I removed X windows like so: >yum remove "X Window system" and then tried to re install >yum group install "X Window system" which gives this error: Maybe run: yum groups mark install (see man yum) No packages in any requested group available to install or upgrade I tried running: >yum groups mark install "X Window system" and get the same message. I tried different permutations removing the "s" on groups. Nothing seems to bring back the yum "X Window system" group. Can anyone help me resolve this issue and tell me what I did wrong? Thanks for your help. -- Paul (ganci(a)nurdog.com) Cell: (303)257-5208

5 8

motion
by m.roth＠5-cent.us 12 Apr '18

12 Apr '18

Got a CentOS 7 box running motion. Selinux is complaining that one of the scripts motion runs is mislabeled. Here's what it is. system_u:object_r:nfs_t:s0 /home/motion/bin/on_move_end Now, ~motion is NFS mounted, and we've got use_nfs_home_dirs --> on, so what *would* the proper label be, or do I really need to create a policy for this? mark

1 0

Windows PC PostScript printer driver -> CUPS data import fails
by Gary Stainburn 12 Apr '18

12 Apr '18

Hi all, For some years now I have been using a simple system I found online which allows me to easily import data from Windows Programs. Hopefully others out there are using the system and already have found the answer to my problem. I have installed on my Centos server a virtual CUPS printer which receives a PS file, and then runs 'ps2pdf' and 'pdftotext -layout' to end up with a text file. On the Windows PC's it's simply a case of installing a printer pointing to this server, and using the HP Colour Laster 2800 PS drivers. Now to my problem. We have finally moved onto Windows 10, and now when I try to install the printer that model printer is no longer available. When I try similar HP Colour Laser PS drivers the ps2pdf command fails. [root@lou inet]# ps2pdf 20180412_104403_tcards.ps GPL Ghostscript 9.14: Unrecoverable error, exit code 1 [root@lou inet]# The PDF contains: ERROR: invalidfileaccess OFFENDING COMMAND: .findfont OPERAND STACK: r /usr/share/X11/fonts/Type1/UTBI____.pfa --nostringval-- true NimbusMonL-Regu Courier --nostringval-- Courier 4544317 Courier Font Courier Has anyone else had this problem, and have they managed to find a solution? Gary

3 4

Does Huawei break the license of CentOS?
by Genghuang Wang 12 Apr '18

12 Apr '18

Hello, CentOS team and everyone who cares about CentOS, Huawei release an Euler OS, which is an distribution based on CentOS. http://developer.huawei.com/ict/en/site-euleros/euleros-introduction According to CentOS's statement, CentOS is distributed under the GPLv2 License. http://mirror.centos.org/centos/7.4.1708/os/x86_64/EULA The GPL license requires the modified version to be open-source AND release in the GPL license, as well. However, Huawei break the GPL license by close-source and replace the license with their proprietary one. How do I find it? Well, I download the so-called Euler OS from http://developer.huawei.com/ict/site-euleros/euleros/repo/yum/2.2/os/x86_64… And install it in the virtual machine. From the following path: /usr/share/euleros-release/EULA /usr/share/eula/eula/eula.en_US I find that it is NOT the GPL license, but Huawei's own license. So is Huawei breaking the license of CentOS?

3 8

Ansible repository shenanigans in EL7
by James Hogarth 11 Apr '18

11 Apr '18

For those not aware ansible has been deprecated in RHEL7 from the extras repository. In the RHEL specific world it's now in an optional "product" (basically an optional subscription) that is part of any RHEL subscription, but it's opt in. As a result ansible is back in the EPEL7 repository for 2.5.0+ , having been removed for ansible 2.4.2 when it got introduced to the RHEL extras repo. I have no idea what, if anything, the CentOS team will do with the ansible in the CentOS7 extras repository.

4 5

Next major version of Firefox on RHEL/CentOS ?
by James Pearson 11 Apr '18

11 Apr '18

I know CentOS don't have inside info on what Redhat may or may not do in the future - plus Redhat don't usually announce publicly what their future plans are - but on the off-chance that someone on this list may know: Does anyone know what Redhat are likely to do with the next major release of Firefox on RHEL (and hence CentOS) ? The reason I ask, is that RHEL has been supplying the 'ESR' (Extended Support Release) version of Firefox - which Mozilla supports for about a year - and RHEL moves to each new ESR version before Mozilla drops support for the previous version. Up until the current version of ESR (52), the major versions have been mostly compatible, but the next release of ESR (60) has some major changes - which include: * No support for NPAPI plugins - except for Flash - i.e. no support for plugins like Java etc * No support for XUL/XPCOM/legacy add-ons - will only support 'WebExtensions' * Requires gtk3 run-time support - which isn't available with RHEL/CentOS 6 (currently Firefox for both el6 and el7 use the gtk2 run-time libraries) I know it's a long shot, but I'm just trying to work out what changes I will need to make when ESR 52 reaches its EOL in August this year ... Thanks James Pearson

1 1

yum excludes
by Mathy Froeyen 11 Apr '18

11 Apr '18

dear all Every yum command returns "nvidia excluding" lines, and those items are invisible for installation, see lower. I have no idea where those excludes are defined. Also, the flag "--disableexcludes=all" does not remove the excludes. any ideas? thanks mathy ------------------------------------------------------ [root@gbw-d-l0070 ~]# yum update Loaded plugins: etckeeper, fastestmirror, langpacks, nvidia Loading mirror speeds from cached hostfile * base: centos.cu.be * elrepo: ftp.nluug.nl * epel: fedora.cu.be * extras: centos.cu.be * updates: centos.cu.be [nvidia]: excluding kmod-nvidia-367.57-3.el7.elrepo.x86_64 [nvidia]: excluding kmod-nvidia-390.25-1.el7_4.elrepo.x86_64 [nvidia]: excluding kmod-nvidia-390.42-1.el7_4.elrepo.x86_64 [nvidia]: excluding kmod-nvidia-390.48-1.el7_4.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-367.57-1.el7.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-390.25-1.el7.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-390.42-1.el7.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-390.48-1.el7_4.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-32bit-367.57-1.el7.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-32bit-390.25-1.el7.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-32bit-390.42-1.el7.elrepo.x86_64 [nvidia]: excluding nvidia-x11-drv-32bit-390.48-1.el7_4.elrepo.x86_64 No packages marked for update

2 1

Semi-OT: install python package in userspace
by m.roth＠5-cent.us 11 Apr '18

11 Apr '18

CentOS 7 box. As there's no package in any of the repos, we're trying to install scikit-learn in the user's space. It refuses. My late try was, after d/l a .whl from last year, hoping that would work with the numpy package in the regular repos, I did a pip install --user scikit-learn..., and it still seems to want to write to system space: OSError: [Errno 13] Permission denied: '/usr/lib64/python2.7/site-packages/numpy-1.7.1.dist-info Anyone got any pointers? mark

12 25

XScreenSaver
by Nicolas Kovacs 10 Apr '18

10 Apr '18

Hi, I'm currently moving all our local school's desktop clients from Slackware 14.1 to CentOS 7 + Xfce. Right now I'm fine-tuning the default user profile. I have a problem with XScreenSaver. The application per se works very well. Only there's a hard-coded pop-up window that reminds the user that he's not running the latest version. So, if I'm running version 5.36 as provided by the EPEL repo and not the latest and greatest 5.38 as provided upstream, I get a pestering pop-up window informing me that YOUR VERSION OF XSCREENSAVER IS VERY OLD. This functionality is apparently hard-coded, since there's no way to deactivating it. The Slackware distribution seems to have solved the problem by promising upstream to keep things up-to-date. For the moment I simply work without it, because I'm annoyed by my users phoning me and asking me what's this thing with their screensaver being too old. As far as I can tell, there would be several solutions to this problem. 1. Ask the EPEL maintainers to keep the application up-to-date. 2. Patch the darn thing so I don't get the annoying popup. 3. Maintain my own up-to-date version of XScreenSaver in my private repo. Any thoughts about this? Cheers, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Blog : https://blog.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32

11 20

CentOS-announce Digest, Vol 158, Issue 1
by centos-announce-request＠centos.org 10 Apr '18

10 Apr '18

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2018:0647 Important CentOS 6 thunderbird Security Update (Johnny Hughes) 2. CESA-2018:0649 Important CentOS 6 libvorbis Security Update (Johnny Hughes) 3. CESA-2018:0648 Important CentOS 7 thunderbird Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 9 Apr 2018 23:34:21 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2018:0647 Important CentOS 6 thunderbird Security Update Message-ID: <20180409233421.GA10451(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2018:0647 Important Upstream details at : https://access.redhat.com/errata/RHSA-2018:0647 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 8faab804fa19089343fd1e489a02b3d351cec5544ed592b6dbec7a3006af99cf thunderbird-52.7.0-1.el6.centos.i686.rpm x86_64: 647747711d64e16d5b2e1529f7e5974464bb0b510cdbcad045f08048dba0d0da thunderbird-52.7.0-1.el6.centos.x86_64.rpm Source: 5089b20a8b1521a7ff70fc6ff5f053a6c6ab5ff2f6fa7f4a0a9af812c8774933 thunderbird-52.7.0-1.el6.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Mon, 9 Apr 2018 23:35:22 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2018:0649 Important CentOS 6 libvorbis Security Update Message-ID: <20180409233522.GA10751(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2018:0649 Important Upstream details at : https://access.redhat.com/errata/RHSA-2018:0649 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 2e06e17e114f1fb82b38494b2a749d03a24ab1ad4c7bd5802ca8c7d6d604dcdb libvorbis-1.2.3-5.el6_9.1.i686.rpm 40e0518e9a1bca52011bbd00605f55bcdc2bf571dfc8b34847b3fa662c7bc55d libvorbis-devel-1.2.3-5.el6_9.1.i686.rpm d833b6e19caceb7df39ca2bcc782f73f1b7774d7bd52abd6704ac29d778bb882 libvorbis-devel-docs-1.2.3-5.el6_9.1.noarch.rpm x86_64: 2e06e17e114f1fb82b38494b2a749d03a24ab1ad4c7bd5802ca8c7d6d604dcdb libvorbis-1.2.3-5.el6_9.1.i686.rpm e2b276ee079787afa938fc33d26255a167e592670303c74656e84b96c09ace5b libvorbis-1.2.3-5.el6_9.1.x86_64.rpm 40e0518e9a1bca52011bbd00605f55bcdc2bf571dfc8b34847b3fa662c7bc55d libvorbis-devel-1.2.3-5.el6_9.1.i686.rpm e043eec9adabbada05e9229f7669b1f1de85693265dd8fb98366b36ee23886a4 libvorbis-devel-1.2.3-5.el6_9.1.x86_64.rpm d833b6e19caceb7df39ca2bcc782f73f1b7774d7bd52abd6704ac29d778bb882 libvorbis-devel-docs-1.2.3-5.el6_9.1.noarch.rpm Source: cf05cdba31b5c0bd71bbe2e333821dc586a9c2eddd8a6fe762c4d35ee836934d libvorbis-1.2.3-5.el6_9.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 3 Date: Tue, 10 Apr 2018 00:06:05 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2018:0648 Important CentOS 7 thunderbird Security Update Message-ID: <20180410000605.GA24381(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2018:0648 Important Upstream details at : https://access.redhat.com/errata/RHSA-2018:0648 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 78c170024613cdf14dc70084dda0c83a321f6829959333ee0e6c518bc772c501 thunderbird-52.7.0-1.el7.centos.x86_64.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Subject: Digest Footer _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce ------------------------------ End of CentOS-announce Digest, Vol 158, Issue 1 ***********************************************

1 0

Do you blog about CentOS?
by Rich Bowen 09 Apr '18

09 Apr '18

Do you blog about CentOS? Or about Linux in general? We need your voice. As mentioned on https://blog.centos.org/2018/04/seven-centos-org-is-dead-long-life-to-blog-… this morning, authentication for blog.centos.org is tied to accounts.centos.org (through OpenID). So if you have a CentOS account, you have an account on the blog server. We would love to have your articles there - hear about what you're doing on top of this awesome platform. On the other hand, if you have your own blog, and you're writing CentOS content there, please let me know about that, too. Our aggregator - planet.centos.org - is where we collect the various sites with quality CentOS content, and we'd love to add you there. Send me an RSS/Atom URL for your content - preferably one that's filtered by tag/keyword, so that it's just the CentOS/Linux content, and not your posts about your cat and your skiing trip - and we'll get you added. There's a HUGE amount of clickbait/spammy content out there about CentOS ("How to Install Bash On CentOS In Twelve Easy Steps!") and we need to combat that with quality, substantive content. Thanks! -- Rich Bowen - rbowen(a)redhat.com @RDOcommunity // @CentOSProject // @rbowen

2 1

iscsiadm: Could not perform SendTargets discovery: encountered non-retryable iSCSI login failure
by marcos sr 09 Apr '18

09 Apr '18

Hello I know this not the place to ask help, but i can't send messages to iscsi list. :( I have 3 CentOS 6 connecting to a ISCSI server with Targecli suddenly they lost connection and i receive this error when i performance iscsiadm --mode discovery --type sendtargets --portal x.x.x.x iscsiadm: Could not perform SendTargets discovery: encountered non-retryable iSCSI login failure I have already changed the password for the ACLs. Thanks for attention.

1 0

CentOS 7 + MariaDB + phpMyAdmin
by Frank M. Ramaekers 09 Apr '18

09 Apr '18

I can't seem to get phpMyAdmin working. I got the ip address problem (permission) resolved, but now I'm getting a "Parallels H-Sphere" error "Error 404: File Not found". I've looked in all the logs and cannot determine what file is not found. Frank M. Ramaekers Jr. | Systems Programmer | Information Technology | American Income Life Insurance Company | 254-761-6649 (732-6649) ---------------------------------------------------------------------- This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at PrivacyAct(a)torchmarkcorp.com.

2 1

DHCPv6 prefix delegation
by Chris Adams 08 Apr '18

08 Apr '18

Is there an DHCPv6 client in CentOS that supports prefix delegation correctly? The old version of dhclient can't set a requested prefix delegation length, so isn't very useful, and I can't get the even-older wide-dhcpv6 from EPEL to work. -- Chris Adams <linux(a)cmadams.net>

2 1

CentOS 7 + Xfce + GDM : disable "switch user" ?
by Nicolas Kovacs 07 Apr '18

07 Apr '18

Hi, I have CentOS 7 + Xfce + GDM installed on all our local school's desktop clients. I'd like to disable the "switch user" menu entry, since our desktop clients have a relatively limited amount of RAM. Most users tend to use the "switch user" functionality to log off, and at the end of the day, the computer has no RAM left. I know there is a way to disable this functionality, I vaguely remember having it done a few years ago on Slackware. Any suggestions ? Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Blog : https://blog.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32

1 1

Unable to access network from docker container
by H 07 Apr '18

07 Apr '18

I have recently installed docker and playing around with it. On a CentOS 7 machine, however, I am unable to get access to the outside internet, thus yum ... fails. The host machine runs fine. I am wondering if there are some networking setting on the host I need to modify to allow the docker container to connect to the outside?

3 4

invalid mirror .host-engine.com
by Walter H. 06 Apr '18

06 Apr '18

Hello, how can I prevent of using these mirrors? # yum clean all Loaded plugins: fastestmirror, security Cleaning repos: base extras updates Cleaning up Everything Cleaning up list of fastest mirrors # yum update Loaded plugins: fastestmirror, security Setting up Update Process Determining fastest mirrors * base: centos.den.host-engine.com * extras: centos.den.host-engine.com * updates: centos.den.host-engine.com http://centos.den.host-engine.com/6/os/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://centos.den.host-engine.com/6/os/x86_64/repodata/repomd.xml: (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds') Trying other mirror. base | 3.7 kB 00:00 http://centos.den.host-engine.com/6/extras/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://centos.den.host-engine.com/6/extras/x86_64/repodata/repomd.xml: (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds') Trying other mirror. extras | 3.4 kB 00:00 http://centos.den.host-engine.com/6/updates/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://centos.den.host-engine.com/6/updates/x86_64/repodata/repomd.xml: (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds') Trying other mirror. is there a way of setting up a DNS ZONE where requests to this domain get somewhat like 'not exist'? Thanks, Walter

2 1

Re: [CentOS] GnuPG 2.0.16?
by Karl Vogel 06 Apr '18

06 Apr '18

>> On Thu, 29 Mar 2018 10:53:05 -0700, >> Kay Schenk <kay.schenk(a)gmail.com> said: K> Does anyone know where I can find GnuPG 2.0.16 for CentOS 6.9 32-bit? Do you want something that old? 2.0.17 came out in 2011. I run Oracle Linux 6.9 (basically RHEL without the trademarks) -- if you're comfortable building from source, GnuPG-2.2.5 wasn't hard. This is what I did: Download files: site='https://gnupg.org/ftp/gcrypt' curl $site/libassuan/libassuan-2.5.1.tar.bz2 curl $site/libassuan/libassuan-2.5.1.tar.bz2.sig curl $site/libgcrypt/libgcrypt-1.8.2.tar.bz2 curl $site/libgcrypt/libgcrypt-1.8.2.tar.bz2.sig curl $site/libgpg-error/libgpg-error-1.28.tar.bz2 curl $site/libgpg-error/libgpg-error-1.28.tar.bz2.sig curl $site/libksba/libksba-1.3.5.tar.bz2 curl $site/libksba/libksba-1.3.5.tar.bz2.sig curl $site/npth/npth-1.5.tar.bz2 curl $site/npth/npth-1.5.tar.bz2.sig curl $site/gnupg/gnupg-2.2.5.tar.bz2 curl $site/gnupg/gnupg-2.2.5.tar.bz2.sig Check the tarballs against GPG signatures and unpack. Build libraries first: export CC=gcc export CXX=g++ export CFLAGS=-O2 export LDFLAGS="-L/usr/local/lib" export CPPFLAGS="-I/usr/local/include" dest=/usr/local cd /path/to/libassuan-source ./configure --prefix=$dest --mandir=$dest/man make && make check && make install && make clean cd /path/to/libgcrypt-source ./configure --prefix=$dest --mandir=$dest/man make && make check && make install && make clean cd /path/to/libgpg-error-source ./configure --prefix=$dest --mandir=$dest/man make && make check && make install && make clean cd /path/to/libksba-source ./configure --prefix=$dest --mandir=$dest/man make && make check && make install && make clean cd /path/to/npth-source ./configure --prefix=$dest --mandir=$dest/man make && make check && make install && make clean Build gnupg -- this was more interesting because I needed the realtime library (librt) as well as a local ncurses library (libncursesw) to make readline stuff work. You may not need this, depending on how your libraries are set up: export CC=gcc export CXX=g++ export CFLAGS=-O2 export LDFLAGS="-L/usr/local/lib -L/usr/lib64" export LIBS="-lreadline -lncursesw -lrt" export CPPFLAGS="-I/usr/local/include" dest=/usr/local cd /path/to/gnupg-source ./configure --prefix=$dest --mandir=$dest/man [change config.h to hold "#undef HAVE_INOTIFY_INIT" unless you have a very recent release of inotify sources] make && make check && make install && make clean It's a little tedious but it works. -- Karl Vogel / vogelke+unix(a)pobox.com / I don't speak for the USAF or my company About as useful as telling Indiana Jones to look both ways before crossing the street. --comment about Amazon IT documentation

2 1

/lib/firmware/microcode.dat update on CentOS 6
by Valeri Galtsev 05 Apr '18

05 Apr '18

Dear All, An update just brought on my CenOS 6 boxes updated microcode.dat files: /lib/firmware/microcode.dat Does anybody know off hand what (how critical) is that, as, if it is related to most famous these days trouble with CPU hardware, I will need to reboot relevant boxes to have new microcode loaded. But if it is not that critical, it can wait till next reboot. Thanks a lot and apologies for laziness (not looking into details of this particular update myself). Valeri ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++

15 29

Centos 7 LAPP setup PHP 5 vs 7
by Gary Stainburn 05 Apr '18

05 Apr '18

Another questions regarding my new server setup. As with the Postgresql setup, different pages describing setting up a Centos LAPP server have differing opinions about PHP versions. The default distro's appear to still be installing PHP5 while some sites instruct on how to install PHP7. I am porting my old server which must be 10 years old, running Fedora 9 and PHP5 onto the new server, so presumably sticking with PHP5 would be the easier option. However, I am looking to give my new server as long a life as possible, so should I instead be looking at PHP7? I have literally thousonds of lines of PHP code on my existing box. How much head ache am I going to have porting into either of the two new platforms? How much difference would PHP5 vs PHP7 be? Opinions please

2 1

Centos 7 LAPP setup Postgresql version and setup
by Gary Stainburn 05 Apr '18

05 Apr '18

Hi all, I've got a nice shiny new server which I'm going to build as a LAPP platform. I've just had a quick look for suitable instructions on the best way to configure it and I have a few questions. There are many hits, some better than others. (It is replacing a Fedora 9 server so I'm expecting to have lots of *fun*) 1) 9.2 vs 9.5 Some of the instruction pages I've found install using the standard repositories and install version 9.2 (?) while some others add a postgresql repo and install 9.5 What are people's opinions? In the long term, and I going to have more admin hassle with one over the other? Will porting schemas including stored functions in pl/psql from 8.3 be easier / better with one version over the other? 2) network vs sockets I read somewhere that connecting Apache / PHP to Postgresql is faster if you use sockets rather than usling the loopback i/f. Is this correct? If it is correct, what is the correct connect string if I use the 9.2 or 9.5 RPM's as described above? There seems to be lots of Google content about sockets not working. Is it really that hard? (I use pg_pconnect() to do the connecting)

1 0

memory cgroup max_usage_in_bytes question
by Stijn De Weirdt 05 Apr '18

05 Apr '18

hi all, can someone help explaining what we are seeing? it makes no sense to us. this is a host running centos 7.4 with 3.10.0-693.17.1 kernel, and it has 192GB of ram > [] free -b > total used free shared buff/cache available > Mem: 201402642432 14413479936 75642777600 48586752 111346384896 185689632768 > Swap: 21474832384 31961088 21442871296 > [] cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes > 273102151680 how can the max be so much higher than total, and this is not even memsw? either we're very tired and are overlooking something obvious, or there's something new to be learned ;) many thanks, stijn

3 4

What is the universal (world wide) understanding behind degaussing harddisks?
by Turritopsis Dohrnii Teo En Ming 02 Apr '18

02 Apr '18

Good evening from Singapore! The foremost question which I want to ask is, what is the universal (world wide) understanding behind degaussing hard drives? I work for No Secrets Agency (NSA) Pte Ltd (fictitious company name used). My sales manager Edward Joseph Snowden (fictitious individual name used) had *promised* our customer Leave Me in the Lurch (S) Pte Ltd (fictitious company name used) that we would "DEGAUSS" their hard disks after the PC replacement and data migration exercise for 15 trillion PCs (fictitious number used). PC = Personal Computer, which includes desktops and laptops Last Friday, I had already reflected to my sales manager Edward Snowden that since we are definitely NOT going to wipe our customer's data by using strong and powerful magnets (physical means), should I send an email to the IT Administrator of our customer Lady Gaga (fictitious individual name used) asking her which data sanitization method (by software means) I should use? My sales manager Edward Snowden had quickly deflected my concerns (that is, wanting to send an email to our customer Lady Gaga asking her which data sanitization method I should use). I had brought up to the sales manager Edward Snowden a number of data wiping methods by software means last Friday. (1) Very very simple 1-pass data wiping, quickest a. Using "sudo dd if=/dev/zero of=/dev/sda", overwriting harddisks from beginning to end with zeroes, where /dev/sda refers to the 500 GB harddisk, not /dev/loop0 and not /dev/sdb which refers to the bootable live operating system on thumb drive b. Using "sudo dd if=/dev/urandom of=/dev/sda", overwriting harddisks from beginning to end with random data, where /dev/sda refers to the 500 GB harddisk, not /dev/loop0 and not /dev/sdb which refers to the bootable live operating system on thumb drive Any bootable Live CD/DVD/flash media could do it. (2) 3-pass U.S. Government/Department of Defense (DoD) standard (DoD 5220.22-M) Certified commercial software required (3) 7-pass U.S. Government/Department of Defense (DoD) standard (DoD 5220.22-M) Certified commercial software required (4) 35-pass Gutmann method, slowest Certified commercial software required All these was last Friday. In the midst of our argument over the cellular network "just now", my sales manager Edward Snowden tried to cover up himself by suddenly and unexpectedly making an excuse that he had told me last Friday I was supposed to wipe user data only, not the operating system! If he had wanted me to wipe user data and retain/keep the Windows operating system, he should simply have told me to Reset the PC (for Windows 10 only) or use a =secure File Shredder=! For Windows 7, you can still wipe user data and preserve the operating system by using the Recovery Partition. On Lenovo desktops, press and hold F11 when Windows 7 is starting and reset to factory defaults. I had advised my sales manager Edward Snowden not to use BIG WORDS like "degaussing the harddisk" and market to the customer using these big words. Any person who sees the word "degauss" would have understood it to mean sanitize *ALL* data on the harddisk straight away and without question. Please refer to Figure 1. Exhibit A below for the "degaussing" instructions communicated to me by my sales manager Edward Snowden. Please click the link below. URI: https://i.imgur.com/bGOMyVs.png Please advise. Thank you very much. Regards, Mr. Turritopsis Dohrnii Teo En Ming Systems and Network Engineer Republic of Singapore 2nd April 2018 Monday 9:35 PM Singapore Time GMT+8

5 5

OT: Problems with NextCloud 13.0.1 under Centos7
by C. L. Martinez 31 Mar '18

31 Mar '18

Hi all, I have a strange problem with a clean NextCloud 13.0.1 install under CentOS 7 (fully patched): when I try to login with admin user immediately after setup, returns to login page without returning any error. An no errors in nginx or php log files ... I am using the following components: rh-php71 rh-mariadb102 nginx 1.12 Any idea? Many thanks.

4 4

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss