Discuss November 2010

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259 participants
221 discussions

Does "yum update tzdata" update /etc/localtime?
by Jobst Schmalenbach 15 Nov '10

15 Nov '10

Hi list. Does "yum update tzdata" update /etc/localtime or does this need to be done manually? [this is part of the hwclock problem, a guy from sage-au has given me a hint] Jobst -- Keyboard not found - please clean up desktop! | |0| | Jobst Schmalenbach, jobst(a)barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia

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kernel bug ?
by My LinuxHAList 15 Nov '10

15 Nov '10

Hi, I was using kernel-2.6.18-164.15.1 with no known issues. Then, I updated to: Linux 2.6.18-194.17.1.el5 #1 SMP Wed Sep 29 12:50:31 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux I'm aware that there are later updates that patch couple more security bugs. Here is an issue I run with 2.6.18-194.17.1 and am asking if anyone hits that kernel bug. Here are the symptoms: 1) kswapd1 running at 100%, there are not much paging 2) when i logged in, root can't kill -9 ANY processes 3) memory is used up, swap is probably only used up for couple hundred MBs at most (Swap space has couple Gig available) I saw in the logs: kernel: INFO: task sadc:23936 blocked for more than 120 seconds. kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Annoyingly, I failed to reproduce the issues. I tried to reproduce it with the "stress" software package, using up CPU, memory, etc. But I failed to reproduce those. Reading later release of kernel did not mention this bug. If anyone can contribute to what is happening here, that would be great. Thanks

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Confused about Java browser plugin for Firefox
by Nicolas Kovacs 15 Nov '10

15 Nov '10

Hi, I'd like to install a working Java Plugin for Firefox, and I wonder how to go about it. There's some documentation available online, but one quickly gets the feeling it's quite a mess. I also admit being a contributor to the mess, since the Linux book I published in June 2009 gives a detailed - and now obsolete - description about installing JRE : http://www.microlinux.fr/linux_aux_petits_oignons/chapitre_8/01.php#java Any advice on how to go about that without jumping through burning loops? A pointer to some concise documentation or, even better, a short and working step-by-step HOWTO? Cheers, Niki Kovacs -- http://www.kikinovak.net

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External HD on CentOS 5.5
by Dick Roth 15 Nov '10

15 Nov '10

I'm looking into backing up my CentOS 5.5 system using an external USB 2.0 hard drive. Anyone with experience with Toshiba Canvio USB 750 GB unit? I'm backing up to DVDs now and would like to streamline the process. Any advice is welcome with thanks. Dick -- Yes indeed...the Hokey Pokey *is* what its all about!

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RAID Resynch...??
by Tom Bishop 14 Nov '10

14 Nov '10

So still coming up to speed with mdadm and I notice this morning one of my servers acting sluggish...so when I looked at the mdadm raid device I see this: mdadm --detail /dev/md0 /dev/md0: Version : 0.90 Creation Time : Mon Sep 27 22:47:44 2010 Raid Level : raid10 Array Size : 976759808 (931.51 GiB 1000.20 GB) Used Dev Size : 976759808 (931.51 GiB 1000.20 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Sun Nov 14 11:33:51 2010 State : clean, resyncing Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Layout : far=2 Chunk Size : 512K Rebuild Status : 57% complete UUID : f045370a:5be687e9:73e57992:06ea59e5 Events : 0.8 Number Major Minor RaidDevice State 0 8 17 0 active sync /dev/sdb1 1 8 33 1 active sync /dev/sdc1 If done some googling but I am stumped as to what would have kicked this off, anyone have any insight that would be great...The system has been up for ~34 days and it kicked off at 4am local time...Here are some of my system details... Centos 5.5 - 2.6.18-194.11.4.el5 fstab: LABEL=/ / ext3 defaults 1 1 LABEL=/boot /boot ext3 defaults 1 2 /dev/md0 /home ext4 noatime,defaults 0 2 /dev/md0 /mnt/data-raid ext4 noatime,defaults 0 2 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 LABEL=SWAP-sda2 swap swap defaults 0 0 Thanks in advance....

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Best practices for the maximal length of user names
by Mathieu Baudier 14 Nov '10

14 Nov '10

Hello, are there any best practices for the length of user names? I tend to limit them to 8 characters and to follow the pattern 'first letter of the first name'+'first 7 letters of the last name' (e.g. mbaudier). But people are sometimes frustrated with having their last name truncated and I wonder if limiting the user name to 8 characters is not a kind of superstition coming from some old times... I would be very interested to hear opinions / experience about this. (I'm using CentOS 5.5) Thanks in advance! Mathieu

4 3

Addressing outgoing connections to a specific interface
by Dotan Cohen 14 Nov '10

14 Nov '10

On a CentOS 5.5 laptop (Dell Inspiron, dual boot with a Debian-based distro) I have a cable plugged into eth0 which is on a LAN with no internet connection. Additionally, I connect wirelessly on wlan0 to the internet. Both connections have router on the 192.168.0.1 address. Although I need to stay connected to the wireless router, can I still access the address 192.168.0.1 on the wired interface? Some googling led me to the keyword "loopback" but I am at a loss as how to configure it, or if this is even the right idea. If there is a specific page that I should be reading in the fine manual then please do RTFM me, as I myself failed to find the proper page. Thanks in advance. -- Dotan Cohen http://gibberish.co.il http://what-is-what.com

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Oracle charging for InnoDB support in MySQL : what is going to change for us?
by robert mena 14 Nov '10

14 Nov '10

Hi, I've noticed that Oracle is charging for the MySQL version that supports InnoDB (http://www.mysql.com/products/) I could not find any other link with direct confirmation of what is going to change for the existing servers/versions and I was wondering if anybody has a more detailed info. For example, is RHEL (and CentOS) going to drop support for it? Are we going to see any further updates for security issues?

5 4

make fails with "recompile with -fPIC"
by aurfalien＠gmail.com 14 Nov '10

14 Nov '10

Hi all, I am trying to get monodevelop installed on Centos 5.5 In order to do so, I must install several packages, all of which give me the following error when doing a make; /usr/bin/ld: .libs/image.o: relocation R_X86_64_PC32 against `gdip_getcodecinfo_gif' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Bad value How and where do I add this value of -fPIC? Better yet, has any one done this before? Keep in mind this is diff then mono-devel. Thanks in advance, - aurf

2 2

Flash plugin not working
by Niki Kovacs 13 Nov '10

13 Nov '10

Hi, I have a fresh install of CentOS 5.5, with a minimal GNOME desktop. I configured RPMForge as third party repo. I updated everything first, then installed flash-plugin. (And yes, I restarted Firefox... :oD). All I see when I try to see some things Flash on the Internet, like Youtube or the likes, I get... nothing. The space remains white. Sometimes a black square will appear, sometimes it will redisappear again. $ rpm -q flash-plugin flash-plugin-10.1.82.76-0.1.el5.rf I also tried to give the more recent version from Adobe a shot, with the same result. I took a look in /usr/lib/mozilla/plugins, where everything seems normal. $ ls -l /usr/lib/mozilla/plugins/ total 0 lrwxrwxrwx 1 root root 39 nov 8 22:22 libflashplayer.so -> /usr/lib/flash-plugin/libflashplayer.so Which leaves me clueless. Any suggestions ? Cheers, Niki

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Discuss November 2010