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34745 discussions

Cloud image_index: is 1801-01 a release?
by Nicholas Timkovich 26 Feb '18

26 Feb '18

I load CentOS cloud images into our infrastructure for our users to use, and I have a script that looks at https://cloud.centos.org/centos/7/images/image-index, picking what has the highest revision, to find the new hotness. Up until the most recent image, they've all appeared in there; is this changing going forward? How can I automatically find the newest one and its revision tag? The untagged "latest" ones (linked to by the https://wiki.centos.org/Download page) don't appear in the sha256sums file, so I couldn't even compare sums. Can I petition for keeping the cloud image-index up-to-date? -- Nick Timkovich | Software Engineer | Computation Institute, University of Chicago | npt(a)uchicago.edu

1 0

lensfun-update-data on CentOS 7
by wwp 26 Feb '18

26 Feb '18

Hello there, did anybody have lensfun-update-data (*) to work on CentOS 7? Here I get, as root: $ lensfun-update-data Traceback (most recent call last): File "/bin/lensfun-update-data", line 118, in <module> read_location("http://lensfun.sourceforge.net/db/") File "/bin/lensfun-update-data", line 99, in read_location print("Reading {} \u2026".format(base_url + "versions.json")) UnicodeEncodeError: 'ascii' codec can't encode character '\u2026' in position 56: ordinal not in range(128) (*) 0.3.1 from EPEL. Regards, -- wwp

1 0

Re-enable grub boot in UEFI (Windows took over it)
by wwp 26 Feb '18

26 Feb '18

Hello there, Dell XPS-15-9560 laptop (SSD drive, UEFI, secure boot off).. Windows 10 pre-installed, CentOS7 installed in a separate partition and running for months w/o issue. Don't know what happened but at reboot yesterday (not even booted in Windows, just rebooted), grub has disappeared, booted in Windows by default, which apparently has taken over the UEFI boot. By booting from a USB drive w/ CentOS7 LiveGnome, I could use its grub command prompt to inspect the UEFI of the local SSD drive, see that the centos/ sub-directory and files are still there. /boot/efi/EFI/centos/: BOOT.CSV BOOTX64.CSV fonts grub.cfg grub.cfg.1501243846.rpmsave grub.cfg.1505469290.rpmsave grubenv grubx64.efi mmx64.efi shim.efi shimx64-centos.efi shimx64.efi maybe /boot/efi/EFI/Boot/ contents has been altered? /boot/efi/EFI/Boot/: bootx64.efi fbx64.efi I had a backup of the full efi partition (`dd`) but it's outdated and I feel it's a bad idea to restore the partition from it. Still from this "external" grub prompt, I could boot into my CentOS7 using: configfile (hd0,gpt1)/EFI/centos/grub.cfg At least I know how to get back to it :-). But now, how could I give the UEFI control back to grub? Is there a grub2 or grubby command I can run to make grub the default? I've read a lot and still cannot figure out exactly what to do or don't dare running commands that could make things worse. And I have the feeling the at next Windows boot, I may need to do it again.. Regards, -- wwp

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Set LANG on CentOS 6 server
by Nicolas Kovacs 24 Feb '18

24 Feb '18

Hi, I'm having a weird problem on a CentOS 6 server. I installed the machine in french, so I have LANG=fr_FR.UTF8 defined. I'd like to define en_US.UTF8, because some output is better readable in english, like chkconfig --list. I replaced fr_FR.UTF8 in /etc/sysconfig/i18n and /boot/grub/grub.conf. Unfortunately, when I reboot the system, I still get this: # echo $LANG fr_FR.UTF-8 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

2 2

Network broke for a while when libvirtd start
by wuzhouhui 24 Feb '18

24 Feb '18

When start service libvirtd by service libvirtd start the network will broke for a while and then reconnected. Following is /var/log/messages: Feb 24 13:28:51 node-0 kernel: lo: Dropping TSO features since no CSUM feature. Feb 24 13:28:51 node-0 kernel: lo: Disabled Privacy Extensions Feb 24 13:28:51 node-0 kernel: virbr0: Dropping TSO features since no CSUM feature. Feb 24 13:28:51 node-0 kernel: virbr0: Dropping TSO6 features since no CSUM feature. Feb 24 13:28:51 node-0 kernel: device virbr0-nic entered promiscuous mode Feb 24 13:28:51 node-0 kernel: virbr0: starting userspace STP failed, starting kernel STP Feb 24 13:28:51 node-0 kernel: ip_tables: (C) 2000-2006 Netfilter Core Team Feb 24 13:28:51 node-0 kernel: nf_conntrack version 0.5.0 (16384 buckets, 65536 max) Feb 24 13:28:51 node-0 kernel: virbr0: topology change detected, propagating Feb 24 13:28:51 node-0 kernel: virbr0: port 1(virbr0-nic) entering forwarding state Feb 24 13:28:51 node-0 kernel: 8021q: adding VLAN 0 to HW filter on device virbr0 Feb 24 13:28:51 node-0 kernel: ixgbe 0000:02:00.0: eth2: detected SFP+: 3 Feb 24 13:28:52 node-0 kernel: ixgbe 0000:02:00.1: eth3: detected SFP+: 4 Feb 24 13:28:52 node-0 kernel: bonding: bond0: link status definitely down for interface eth2, disabling it Feb 24 13:28:52 node-0 kernel: virbr0: port 1(virbr0-nic) entering disabled state Feb 24 13:28:52 node-0 kernel: bonding: bond0: link status definitely down for interface eth3, disabling it Feb 24 13:28:53 node-0 kernel: ixgbe 0000:02:00.0: eth2: NIC Link is Up 10 Gbps, Flow Control: RX/TX Feb 24 13:28:53 node-0 kernel: bond0: link status definitely up for interface eth2, 10000 Mbps full duplex. Feb 24 13:28:53 node-0 kernel: ixgbe 0000:02:00.1: eth3: NIC Link is Up 10 Gbps, Flow Control: RX/TX Feb 24 13:28:53 node-0 kernel: bond0: link status definitely up for interface eth3, 10000 Mbps full duplex. OS: CentOS 6.5 libvirt: libvirt-daemon-1.2.5-1.mira1.x86_64 Does anyone know the reason?

2 2

a few simple questions about upgrading an "official" centos 7 release
by Robert P. J. Day 24 Feb '18

24 Feb '18

again, some fairly trivial(?) questions about working with centos 7.4, given my time immersed in fedora so i want to make sure i'm not carrying over any bad habits. first, is there anything untoward in updating an installed version of centos 7.4 with a simple "yum update"? i'm well aware of keeping in mind the goal of stability with centos, so am unsure what the philosophy is of pulling in new updates as cavalierly as i do with fedora. currently, "yum list updates" shows me 206 possible updates; should i have any concern about updating packages coming from the standard centos repos? next, are there any issues replacing yum wihth dnf? i found this piece: https://www.vultr.com/docs/use-dnf-to-manage-software-packages-on-centos-7 which suggests it shouldn't be a problem. thoughts? finally, any concerns i should have about upgrading the kernel from 3.10 to 4.14 or 4.15, as explained in a number of places like this: https://www.tecmint.com/install-upgrade-kernel-version-in-centos-7/ i simply prefer to run a current kernel but i can resist the temptation if upgrading that on a centos 7.4 system would introduce more problems than are worth it. thoughts? rday

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what is the centos/elrepo policy toward LTS kernels?
by Robert P. J. Day 23 Feb '18

23 Feb '18

i'm sure there's a simple answer to this -- i already understand that newer kernels than the ones shipped with the official release aren't officially supported but there is the elrepo kernel repository here: http://elrepo.org/linux/kernel/el7/x86_64/RPMS/ with a mixture of long-term (lt) and mainline (ml) kernels. i assume that the mainline kernels pretty closely track the latest kernel release but that's not the one i'm interested in. if i was interested in the additional longevity of the LTS kernels, i can see that 4.4 is available. but the most recent LTS kernel was 4.14, was it not? so why is a 4.14 "lt" kernel not available in that repository? i am obviously unclear on the policy used to determine which kernel versions end up in that repository. rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================

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Ubiquiti Model UAP-AC-PRO
by Paul Schoonderwoerd 23 Feb '18

23 Feb '18

>Everyone, > >Have any of you installed ubiguiti wireless routers on your network? > >It looks like the setup requires the use of software; they have some >packages that are ready made for Ubuntu and Debian, but not RedHat > >https://www.ubnt.com/download/unifi/unifi-ap-ac-pro[1] _>_ >Have any of you tried or succeeded in installation this on Centos 7.4? > >Greg Ennis To install just the one access point, just download their app on your phone and configure it. Very easy. For a full Ubiquity network you can install the software on a Linux machine or buy the Cloud key, same software running on a small RaspberryPi like box (needs POE connection). Makes managing the components much much easier. Paul Schoonderwoerd Pollux IT -------- [1] https://www.ubnt.com/download/unifi/unifi-ap-ac-pro

1 0

Cisco AnyConnect Mobility Client for 32- bit CentOS 6
by H 22 Feb '18

22 Feb '18

I have the above installed on a couple of 64-bit systems, both CentOS 6 and CentOS 7, where the client works fine. Now, however, I have installed the 32-bit version of CentOS 6 on a netbook but I cannot get the Cisco website installer to recognize the computer/operating system, not even displaying any error message. Does anyone have the client running on a 32-bit system? I have been told it should run on a 32-bit system and did have it running on the same netbook while it was still running Vista Home edition, another 32-bit operating system.

3 4

CentOS 7 1708 won't boot after grub2 update
by Sorin Srbu 22 Feb '18

22 Feb '18

Hi all, This is the third fresh install of CentOS 7 1708 the last two months that won't boot after a regular "yum update" just after the fresh install has finished. I've never had this problem before, it has just worked. The installs are on OEM's that have previously run CentOS 6.9 x64. Am I missing something here? -- BW, Sorin ----------------------------------------------------------- # Sorin Srbu, Sysadmin # Uppsala University # Dept of Medicinal Chemistry # Div of Org Pharm Chem # Box 574 # SE-75123 Uppsala # Sweden # # Phone: +46 (0)18-4714482 # Visit: BMC, Husargatan 3, B5:404b # Web: http://www.orgfarm.uu.se ----------------------------------------------------------- # O< ASCII ribbon campaign - Against html E-mail # http://tinyurl.com/ascii-ribbon-campaign # # This message was not sent from an iProduct! # # Please consider the environment before printing this email. # Join the campaign at http://thinkBeforePrinting.org # # MotD follows: Do not disturb -- I'm disturbed enough already.

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