Discuss July 2014

discuss@lists.centos.org

211 participants
227 discussions

Troubleshooting suspend/resume problem in Centos 7
by Emmanuel Noobadmin 16 Jul '14

16 Jul '14

I'm trying out CentOS 7 using a HP AMD laptop http://h10025.www1.hp.com/ewfrf/wc/document?cc=uk&lc=en&docname=c03877039 The problem is the laptop doesn't suspend properly in runlevel 5 / graphical.target and following guides, I found that it suspends (power LED blinking) but does not resume in runlevel 3 / multi-user.target. When it locks up, the machine is unresponsive to ping/ssh so it's not just a blank screen. Unfortunately, the only applicable guide I found on troubleshooting this is for Ubuntu, which requires the kernel to support pm_trace which isn't found in /sys/power. Since there is a big red warning on centos.org about building/compiling my own kernel to add functions, I'm wondering if there are any alternative method to troubleshoot the issue on CentOS. I suspect it may be related to the Radeon GPU as I notice that every now and then after fresh boot, the GUI desktop will freeze for a while and dmesg will contain errors: [drm:cik_ib_test] *ERROR* radeon: fence wait failed (-35) [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on ring 2 (-35) As a side note, this laptop had no problems with suspend/resume when it was running Ubuntu 14.04

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pstack
by Clovis Tristao 16 Jul '14

16 Jul '14

Hi, How to install pstack in CentOS 6.5? Which repository or package it is part? Thanks a lot, Clóvis -- Clovis Tristao - UNICAMP/Faculdade de Engenharia Agricola Administrador de Redes - Secao de Informatica (SINFO) E-mail: clovis(a)feagri.unicamp.br http://www.feagri.unicamp.br MSN: clovis_tristao33(a)hotmail.com Fone: 55(19) 35211021-35211031-35211038-91173116

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Opera is slow on CentOS
by Gergely Buday 16 Jul '14

16 Jul '14

Hi there, I am running various browsers on my CentOS 6.5. Firefox is running smoothly, especially with blocking flash animations. I recently installed Opera and I use Seamonkey for long, both suffers from being very slow. Does CentOS have any role in this? For your information I send cpuinfo, some people on #centos said that this could be the problem -- but then why Firefox flies? - Gergely $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 95 model name : AMD Athlon(tm) 64 Processor 3000+ stepping : 2 cpu MHz : 1808.292 cache size : 512 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow up rep_good extd_apicid pni cx16 lahf_lm svm extapic cr8_legacy bogomips : 3616.58 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc

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Still X problems
by mark 16 Jul '14

16 Jul '14

As I posted yesterday, 6.5, a new Dell with a Quadro k2000. I installed kmod-nvidia, and startx works fine... but runlevel 5 fails. Any suggestions? mark

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Cento 7: Color is not known to server (FOREGROUND) [No such file or directory].
by Frank Cox 16 Jul '14

16 Jul '14

I have installed both ImageMagick and GraphicsMagick on this computer. Using the "display" command (from ImageMagick) to show any image gets me this message: display: color is not known to server `FOREGROUND': No such file or directory @ error/xwindow.c/XGetPixelPacket/3064. No image shows up. Using the "gm display" command (from GraphicsMagick) to show any image gets me this message: gm display: Unable to load font (-*-helvetica-medium-r-normal--12-*-*-*-*-*-iso8859-1) [Resource temporarily unavailable]. gm display: Color is not known to server (FOREGROUND) [No such file or directory]. gm display: Color is not known to server (BACKGROUND) [No such file or directory]. In this case, the image does appear. What does "Color is not known to server" actually mean? -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com

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repair systemd-nspawn
by Mark Pryor 16 Jul '14

16 Jul '14

systemd-nspawn fails in C7 with ------------ nspawn error -------- sudo systemd-nspawn Spawning namespace container on /mnt/usb (console is /dev/pts/1). Init process in the container running as PID 1799. Failed to open system bus: No such file or directory Failed to open system bus: No such file or directory Container failed with error code 254. -------------- snip ----------- With strace I noticed that the file below is not found: to /etc/rc.local add: ------------ /etc/rc.local --------- if [ ! -f /run/dbus/system_bus_socket ]; then mkdir -p /run/dbus LST=`pwd` cd /run/dbus ln -s /var/run/dbus/system_bus_socket system_bus_socket cd $LST fi ------------ snip ---------- Author: PryMar56 on freenode #xen,#centos

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CentOS-7 kernel trouble
by Timothy Murphy 16 Jul '14

16 Jul '14

When I re-boot I get the message "A problem in the kernel package has been detected". I am asked if I want to report this, to which I respond in the affirmative; but I have no idea where this report goes, or if it can be read in some way. The boot continues, and the system seems to work, although on the last occasion it failed after 2 days, and I was unable to re-boot it, so had to re-install it (from the KDE LiveCD). -- Timothy Murphy e-mail: gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin 2, Ireland

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Cemtos 7 : Systemd alternatives ?
by Always Learning 16 Jul '14

16 Jul '14

Reading about systemd, it seems it is not well liked and reminiscent of Microsoft's "put everything into the Windows Registry" (Win 95 onwards). Is there a practical alternative to omnipresent, or invasive, systemd ? -- Regards, Paul. England, EU. Centos, Exim, Apache, Libre Office. Linux is the future. Micro$oft is the past.

40 172

C6.5 - combine two DVD isos into one tree?
by tony＠softins.co.uk 15 Jul '14

15 Jul '14

I have the two DVD isos for CentOS 6.5 mounted as loopback, on the mount points /centos6 and /centos6a, and am trying to use them for PXE/KS installation. The problem I have is that the packages in /centos6a/Packages are not found by the installer. The host is a CentOS 5 system. Is there a way for me to overlay the second DVD on the first without having to copy all the packages from both isos into a new directory? Or is there a standard path I can use to mount the second DVD that the installer will use for packages that are not found on the first? Or any other ideas? I'm sure I can't be the first to stumble over this! Cheers Tony -- Tony Mountifield Work: tony(a)softins.co.uk - http://www.softins.co.uk Play: tony(a)mountifield.org - http://tony.mountifield.org

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List attitude and content
by Karanbir Singh 15 Jul '14

15 Jul '14

hi folks, Can we please: 1) keep it civil, be polite - if you have nothing meaningful to contribute to the thread, then dont contribute anything 2) Keep it on context, this isnt the place to talk about old hardware stories and personal fluffery like that. This is the CentOS users list, keep content to whats relevant to the CentOS users. Regards -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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Discuss July 2014