Discuss October 2014

discuss@lists.centos.org

199 participants
220 discussions

SAMBA as AD DC
by Sergio Belkin 11 Sep '15

11 Sep '15

Hi folks, Is able SAMBA on CentOS 7 to work as Active Directory Domain Controller? If it's not, what is the recommended way of doing? Compiling from sources? Install packages from SerNet? Thanks in advance! -- -- Sergio Belkin http://www.sergiobelkin.com LPIC-2 Certified - http://www.lpi.org

9 14

Mail Merge data to a pdf file by overlaying the data on the image
by Gregory P. Ennis 07 Jun '15

07 Jun '15

Everyone, I am looking for a utility that I can use to do a mail merge of data to a pdf image file. The image file does not have any active fields, but will be just an image file. I would like to overlay names addresses etc. We currently do this with a pcl file by just overlaying the data with pcl print positions. However, in order to get the pcl file from an original pdf file we have to use gimp to convert the pdf to pcl file, and we always lose a little resolution. I was wondering if anyone knows of a utility to perform this function without first converting the image to a pcl file. Thanks, -- Greg Ennis

4 10

heavy IO load when working with sparse files (centos 6.4)
by Ron E 31 Mar '15

31 Mar '15

Dear List, We have noticed a variety of reproducible conditions working with sparse files on multiple servers under load with CentOS 6.4. The short story is that processes that read / write sparse files with large "holes" can generate an IO storm. Oddly, this only happens with holes and not with the sections of the files that contain data. We have seen extremely high IO load for example copying a 40 or 80gb sparse file that only has a few gigs of data in it. Attempts to lower the io priority and cpu priority of these processes do not make any measurable difference. (ionice, nice) This has been observed with processes such as: cp rsync sha1sum The server does have to be under some load to reproduce the necessary conditions. The cases we have seen involve servers running 10-30 guests under kvm. Load is in acceptable norms when the processes are run, such as load avg 5-15 on a 24 core (12 core with HT enabled) server. We also verify before starting such a process that the spindle with the file we're working on is not being unduly hammered by another process. These servers have one hardware raid controller each (Dell H700 controller with write cache enabled) and multiple raid arrays (separate sets of physical spindles). Interestingly, the IO storm is not limited to the array / spindles where the sparse file resides but affects all IO on that server. We have looked extensively and not found any account of a similar issue. We have seen this on configurations that are 'plain vanilla' enough to think that this is not something specific to our environment. Wondering if anyone else has seen this and if any suggestions on gathering more data / troubleshooting. We wonder if we've found either a raid controller driver issue, an OS issue or some other such thing. What seems to point in this direction is that even with ionice -c3 which should prevent the process from using IO unless the storage is idle, an io storm which appears to saturate the entire raid bus on a given server can occur. Thanks in advance.

3 3

Centos 6.4 on Xserve, IPMI error
by Arno B 31 Mar '15

31 Mar '15

Hello! I'm trying to install Centos 6.4 64 bit on this Xserve: http://www.everymac.com/systems/apple/xserve/specs/xserve-intel-xeon-2.8-ei… I got a bootloader from: http://blog.christophersmart.com/2009/07/23/linux-on-an-apple-xserve-efi-on… as none of the official Centos releases (full, minimal, network 64 bit) boot on this machine. They all crash when loading the bootx64.conf. I have built a USB stick with a working bootx64.efi, grub.cfg, together with an initrd and a vmlinuz from the isolinux folder. These seem to get me into booting a kernel until something called IPMI is starting to throw errors at me: Console: switching to colour frame buffer device 128x48 fb0: VESA VGA frame buffer device ipmi message handler version 39.2 IPMI System Interface driver. ipmi_si 0000:09:00.4: enable device (0002 -> 0003) ipmi_si 0000:09:00.4: PCI INT C -> GSI 16 (level, low) -> IRQ 16 ipmi_si: Adding PCI-specified kcs state machine ipmi_si 0000:09:00.7: enable device (0000 -> 0003) ipmi_si 0000:09:00.7: PCI INT D -> GSI 17 (level, low) -> IRQ 17 ipmi_si: Adding PCI-specified bt state machine ipmi_si: Trying PCI-specified kcs state machine at mem address 0x90841000, slave address 0x0 irq 16 IRQ 16/ipmi_si: IRQF_DISABLED is not guaranteed on shared IRQs Using irq 16 ipmi: Found new BMC (man_id: 0x00003f, prod_id: 0x0003, dev_id: 0x20) IPMI kcs interface initialized ipmi_si: Trying PCI-specified kcs state machine at mem address 0x90840000, slave address 0x0 irq 17 Refined TSC clocksource calibration: 2792.999 MHz. Switching to clocksource tsc IPMI BT: timeout in XACTION [ B_BUSY ] 1 retries left IPMI BT: timeout in XACTION [ B_BUSY ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) IPMI BT: timeout in XACTION [ B_BUSY H2B ] failed 2 retries, sending error response IPMI: BT reset (takes 5 secs) then the screen goes to black and the machine doesn't respond to anything anymore... Can anyone please help me with this? Maybe just point me in a direction where to find a solution? I've been googling for a few days now without much results... thanks in advance Arno Beekman

2 1

Chromium browser for C6
by Robert Arkiletian 23 Jan '15

23 Jan '15

I found this bug fix report http://lwn.net/Articles/616130/ I thought we were not able to get Chromium for C6. Apparently it looks like the work has been already done. Is it possible we (hi Johnny) can get this package into C6? This would be a wonderful addition to CentOS 6. Please and thank you.

16 51

openvpn client and KDE Network Manager - with CentOS7
by CS DBA 22 Dec '14

22 Dec '14

Hi All, I am switching from Fedora20 to CentOS7 since I now run all my Linux development in a VM and I get a more robust feature set (i.e. shared folders with the host that "just work", etc) The only issue I have thus far is VPN connections. Looking at what's installed on my old Fedora install I suspect I need these packages: kde-plasma-nm-vpnc kde-plasma-nm-openvpn NetworkManager-openvpn NetworkManager-vpnc However none of these are available in CentOS7, Note I have the centos extras and the EPEL repos enabled. I suspect that I need rpmfusion but I don't see that rpmfusion has a repo for CentOS7... Anyone have any thoughts? Can I simply install the centos6 rpmfusion repo? Thanks in advance

3 4

Actual complaining: nixspam
by m.roth＠5-cent.us 19 Nov '14

19 Nov '14

John accused me of complaining about systemd... this here's *real* complaining. Several times every month, my email starts getting bounced by freakin' nixspam, because my giant hosting provider, that hosts millions of domains. Akemi has argued that nixspam works just fine (if so, then why did we get that spam a few weeks ago?). I've politely requested being put on a whitelist, and been politely ignored. I'd also be very surprised if that was not configurable. I've also argued that nixspam's idea of how to block spam is 15 years out of date. More than a dozen years ago, Cogeco was using them, and I was unable to email a close friend in Canada, because of that, and there was no way to get me off the list. And... at the time, my provider was roadrunner, a division of the multinational Time-Warner, and in my area of Chicago, like many areas of Chicago at the time, they were THE ONLY ISP, having bought up or driven out of business all others. This meant that not just me, but tens of thousands of others in Chicago couldn't get through to anyone whose provider chose to use nixspam. Now, almost all small ISPs are long gone, at least in the US, having been eaten or driven under by huge corporations. It is a common thing for ISPs and hosting providers to use a *single* domain for a mailhost, at least for some large subset of their domains. I have zero information, or confidence, that nixspam would not block Verizon, the giant telecom that provides my network access at home, for the same reason. For those reasons, I am once again urging the list owner to *change* spam blocking, and stop using nixspam. At the very least, I request that you *please* put me on a whitelist. Yes, I argue... but so do most of us, and I think that I've helped a number of folks with solutions to problems over the years, if I need to justify my presence on this list. mark

6 14

Upgrade to CentOS6.6: mpich dep error
by wwp 19 Nov '14

19 Nov '14

Hello there, I'm checking if I can upgrade safely from CentOS6.5 to 6.6 using yum, and here's what it says: ===================== [snip] --> Finished Dependency Resolution --> Running transaction check ---> Package kernel.x86_64 0:2.6.32-431.23.3.el6.centos.plus will be erased ---> Package kernel-devel.x86_64 0:2.6.32-431.23.3.el6.centos.plus will be erased ---> Package mpich2.x86_64 0:1.2.1-2.3.el6 will be obsoleted --> Processing Dependency: libmpich.so.1.2()(64bit) for package: hdf5-mpich2-1.8.5.patch1-7.el6.x86_64 --> Processing Dependency: libmpichf90.so.1.2()(64bit) for package: hdf5-mpich2-1.8.5.patch1-7.el6.x86_64 --> Processing Dependency: mpich2 for package: hdf5-mpich2-1.8.5.patch1-7.el6.x86_64 Package mpich2 is obsoleted by mpich, but obsoleting package does not provide for requirements --> Finished Dependency Resolution Error: Package: hdf5-mpich2-1.8.5.patch1-7.el6.x86_64 (@epel) Requires: mpich2 Removing: mpich2-1.2.1-2.3.el6.x86_64 (@base) mpich2 = 1.2.1-2.3.el6 Obsoleted By: mpich-3.1-4.el6.x86_64 (base) Not found Error: Package: hdf5-mpich2-1.8.5.patch1-7.el6.x86_64 (@epel) Requires: libmpichf90.so.1.2()(64bit) Removing: mpich2-1.2.1-2.3.el6.x86_64 (@base) libmpichf90.so.1.2()(64bit) Obsoleted By: mpich-3.1-4.el6.x86_64 (base) Not found Error: Package: hdf5-mpich2-1.8.5.patch1-7.el6.x86_64 (@epel) Requires: libmpich.so.1.2()(64bit) Removing: mpich2-1.2.1-2.3.el6.x86_64 (@base) libmpich.so.1.2()(64bit) Obsoleted By: mpich-3.1-4.el6.x86_64 (base) Not found You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest ===================== Those packages depend on mpich2.x86_64: boost-graph-mpich2 x86_64 1.41.0-18.el6 @base 440 k boost-mpich2 x86_64 1.41.0-18.el6 @base 353 k boost-mpich2-python x86_64 1.41.0-18.el6 @base 44 k hdf5-mpich2 x86_64 1.8.5.patch1-7.el6 @epel 6.8 M mpich2-devel x86_64 1.2.1-2.3.el6 @base 6.8 M I presume it's the dep from hdf5mich from epel which is blocking.. Any hint about what I could do now? Regards, -- wwp

2 3

cr repo firefox el6.6 crashes on 6.5
by Robert Arkiletian 18 Nov '14

18 Nov '14

Noticed firefox is one of the only critical sec. updates from 6.6. So I manually downloaded the rpm from cr repo and rpm -Uvh firefox-31.2.0-3.el6.centos.x86_64.rpm but it crashes with /usr/lib64/firefox/firefox: symbol lookup error: /usr/lib64/firefox/libxul.so: undefined symbol: gdk_window_get_visual

3 3

google talk plugin for google hangout not loading
by Mark LaPierre 06 Nov '14

06 Nov '14

Hey All, I found another issue with 6.6 that was working with 6.5. Error: Package: google-talkplugin-5.38.5.0-1.i386 (/google-talkplugin_current_i386) Requires: libstdc++.so.6(GLIBCXX_3.4.15) -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

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Discuss October 2014