Discuss September 2008

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315 discussions

Re: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

---------- Original Message ---------------------------------- From: MHR <mhullrich(a)gmail.com> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Tue, 9 Sep 2008 10:52:24 -0700 >On Tue, Sep 9, 2008 at 8:18 AM, David Petruzzella <sektor(a)dsli.com> wrote: >> Thanks I read about that, but I am having a hard time forcing duplex, I don't remember the exact error it was giving me at the moment but from what I read it looks like a driver issue. > >Would you please follow this email list's conventions and bottom post? > >Thank you. > >mhr >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > Sure sorry about that at work and what not its the opposite. ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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RE: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

Thanks I read about that, but I am having a hard time forcing duplex, I don't remember the exact error it was giving me at the moment but from what I read it looks like a driver issue. ---------- Original Message ---------------------------------- From: "RobertH" <roberth(a)abbacomm.net> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Tue, 9 Sep 2008 07:30:30 -0700 > >> >> I have a server with dual nic's running centos 5.2 1 nic connects to the >> cable modem, which has 15m d and 2m up, but speed tests barely come back >> at 5mb down including road runner's internal speed test. I hook up my >> laptop to the same modem, same port, using the same cable and I get 17mb >> down. I have ruled out iptables, nics (because same result on both >> nics), cables, cable modem(with a brighthouse rep) any suggestions would >> be greatly appreciated. Thanks. >> > >David, > >IME, it is typically (yet not always) a duplex and/or speed issue between >the NIC port and the switch or device it is talking too. > >man ethtool > >ethtool eth0 > >and check to see what speed and duplex are currently in use... > >if duplex and/or speed are off I typically hard code a *managed* switch and >the centos box on whatever ports as necessary by adding this line or one >similar to it > >ETHTOOL_OPTS="speed 100 duplex full autoneg off" > >To this and other interface files as necessary > >/etc/sysconfig/network-scripts/ifcfg-eth0 > >At this point a reboot will take care of it or if you don't want to reboot >now, Then I would make a little script called downup.sh > >ifdown eth0 >ifup eth0 > >and then I chmod 750 that script and then call it like this if from remote > >./downup.sh & > >So I don't lose connectivity... > >There is probably a more elegant command like way to do that... > >Be careful if remote box and YMMV > > - rh > > >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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NFS exporting a GFS mount point
by Yanagisawa, Koji 09 Sep '08

09 Sep '08

Hello, I have a storage offering some 11 TB of space. I'd happily use ext3 and NFS export to 4 client machines, but 8 TB seems to be the tested maximum. I'd really like one mount point for the whole 11 TB. Since GFS offers lock_nolock option for local mounting, I'm assuming it's not so out of line to NFS export this GFS mount point. Thoughts and inputs appreciated. --Koji

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RE: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

I was thinkging drivers myself, I'm not bonding the nics btw. ---------- Original Message ---------------------------------- From: "John" <jses27(a)gmail.com> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Tue, 9 Sep 2008 01:34:32 -0400 > > > >David Petruzzella Wrote: > >-----Original Message----- >From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf >Of David Petruzzella >Sent: Monday, September 08, 2008 10:09 PM >To: centos(a)centos.org >Subject: [CentOS] Need help with an odd issue I am experiencing > >I have a server with dual nic's running centos 5.2 1 nic connects to the >cable modem, which has 15m d and 2m up, but speed tests barely come back at >5mb down including road runner's internal speed test. I hook up my laptop to >the same modem, same port, using the same cable and I get 17mb down. I have >ruled out iptables, nics (because same result on both nics), cables, cable >modem(with a brighthouse rep) any suggestions would be greatly appreciated. >Thanks. > >********************************************** >JohnStanley Writes: > >Maybe trying the vender specific drivers for the Nic Card in question on the >CentOS Server may solve the problem. Or a possibilty is if your Bonding or >teaming the nics there may be configuration issues in the way you have them >set up. Try just one Nic card by itself with out Bonding. You can use >"miitool" to set or force the transfer rate of the nic in question; see "man >miitool" Since you do say you have dual nics try them both separtly like I >stated (Without The Bonding). > >JohnStanley > >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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Gnome Desktop Questions?
by James B. Byrne 09 Sep '08

09 Sep '08

I have a couple of oddities that I hope someone here can clarify for me. OS = CentOS-5.2 all updates applied to date. 1. On the gnome desktop in the top panel (or menu bar) I have an icon for "System Monitor" which runs the application "gnome-system-monitor". On my other desktop CentOS-5.2 system I have the same thing. However, one one system the icon gives me a real time (ok 5 sec intervals) display of cpu load as cyan and white bar graphs . On the other system the same application gives me a static, sickly green and yellow, display of an oscilloscope. How do I get the dynamic version of the icon? I have checked and both systems are running the same version of the applicvation from the same location. /usr/bin/gnome-system-monitor --version = 2.16.0 2. On the same two systems, the first (the one with the dynamic display) has entries on the system dropdown menufor locking the display, logging out and shutting down. On the second all I have is logout and suspend. Going to the Gnome Menu manager does not give me any option to add the missing items. Can somebody tell me how to get these minor, but for me very desirable, changes made to the second system? The only difference between the two systems that I can recall is that one (the first) was upgraded from 4.6 while the second (the more limited unit) was a clean install. Sincerely, -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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LCD blanks out overnight
by Joe Tseng 09 Sep '08

09 Sep '08

I inherited an ancient Dell Latitude C840 and recently installed CentOS 5.2 on it. It worked fine for the most part, but when I left it overnight and came back the next morning, the screen blacked out and wouldn't come back unless I did a hard reset. Even though I turned off all the power management settings and left it set like a desktop, the next morning after that it still blacked out. I thought maybe it'd come back if I switched from X to a virtual text console, but that didn't do the trick. Has anyone seen this and what do I do to fix it? tia, - Joe _________________________________________________________________ Stay up to date on your PC, the Web, and your mobile phone with Windows Live. http://clk.atdmt.com/MRT/go/msnnkwxp1020093185mrt/direct/01/

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debug kernel panic on CentOS 4.6/BladeCenter HS21
by Sven 09 Sep '08

09 Sep '08

Hi folks Today we had a kernel panic. On the RSA-Console[0] we could only see that the process splunkd was causing the panic. We found nothing else in logs. Howto debug this panic? Howto avoid in future? regards Sven [0] http://bayimg.com/image/makbaaabh.jpg

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Problem of "sort" utf8 file.
by Peter Cai 09 Sep '08

09 Sep '08

Hi all, I have 2 linux distro —— ubuntu and centos. My problem is that the sort command has different behavior when sorting Chinese string encoded in utf8 file. On Ubuntu, it is OK. But on CentOS, it WRONG. I google this problem and it seems that's because of LC_COLLATE. So I change "/etc/sysconfig/i18n" on CentOS and now the 2 have the same LC_** like this: CentOS: ============================= [root@localhost ~]# locale LANG=zh_CN.UTF-8 LC_CTYPE=zh_CN.UTF-8 LC_NUMERIC="zh_CN.UTF-8" LC_TIME="zh_CN.UTF-8" LC_COLLATE=zh_CN.UTF-8 LC_MONETARY="zh_CN.UTF-8" LC_MESSAGES="zh_CN.UTF-8" LC_PAPER="zh_CN.UTF-8" LC_NAME="zh_CN.UTF-8" LC_ADDRESS="zh_CN.UTF-8" LC_TELEPHONE="zh_CN.UTF-8" LC_MEASUREMENT="zh_CN.UTF-8" LC_IDENTIFICATION="zh_CN.UTF-8" LC_ALL= Ubuntu ============================= peter@ubuntu:~$ locale LANG=zh_CN.UTF-8 LANGUAGE=zh_CN:zh LC_CTYPE="zh_CN.UTF-8" LC_NUMERIC="zh_CN.UTF-8" LC_TIME="zh_CN.UTF-8" LC_COLLATE="zh_CN.UTF-8" LC_MONETARY="zh_CN.UTF-8" LC_MESSAGES="zh_CN.UTF-8" LC_PAPER="zh_CN.UTF-8" LC_NAME="zh_CN.UTF-8" LC_ADDRESS="zh_CN.UTF-8" LC_TELEPHONE="zh_CN.UTF-8" LC_MEASUREMENT="zh_CN.UTF-8" LC_IDENTIFICATION="zh_CN.UTF-8" LC_ALL= ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ But, the result is still incorrect on CentOS! I almost got crazy!!! PS: the background of this problem is that Postgresql's "order by" command depends on the sort result of the OS.

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[resend] USB drive fails at sector 0xFFFFFFF
by Kenneth Porter 08 Sep '08

08 Sep '08

I'm backing up to a NTFS partition on an external USB drive with dump. I'm seeing failures in /var/log/messages reading sector 0xFFFFFFF that cause the verify pass to fail. Are there any known problems in the USB driver? Kernel via uname -a: Linux segw2.mpa.lan 2.6.18-92.1.6.el5 #1 SMP Wed Jun 25 13:49:24 EDT 2008 i686 i686 i386 GNU/Linux Message reported. (Note the number 268435455, which is 0xFFFFFFF, and occurs every time I see this happen. But a subsequent attempt to read this region with dd succeeds, so it appears to be intermittent, or dependent on some other precondition.) Sep 7 10:48:39 segw2 kernel: sd 5:0:0:0: Device not ready: <6>: Current: sense key: Not Ready Sep 7 10:48:39 segw2 kernel: Add. Sense: Logical unit not ready, cause not reportable Sep 7 10:48:39 segw2 kernel: Sep 7 10:48:39 segw2 kernel: end_request: I/O error, dev sdb, sector 268435455 Sep 7 10:48:39 segw2 kernel: Buffer I/O error on device sdb1, logical block 33554424 Sep 7 10:48:39 segw2 kernel: sd 5:0:0:0: Device not ready: <6>: Current: sense key: Not Ready Sep 7 10:48:39 segw2 kernel: Add. Sense: Logical unit not ready, cause not reportable Sep 7 10:48:39 segw2 kernel: Sep 7 10:48:39 segw2 kernel: end_request: I/O error, dev sdb, sector 268435455 Sep 7 10:48:39 segw2 kernel: Buffer I/O error on device sdb1, logical block 33554424

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Re: [CentOS] USB drive fails at sector 0xFFFFFFF
by NiftyClusters Mitch 08 Sep '08

08 Sep '08

On Sun, Sep 7, 2008 at 4:44 PM, Kenneth Porter <shiva(a)sewingwitch.com> wrote: > I'm backing up to a NTFS partition on an external USB drive with dump. I'm > seeing failures in /var/log/messages reading sector 0xFFFFFFF that cause the > verify pass to fail. Are there any known problems in the USB driver? > > Kernel via uname -a: > > Linux segw2.mpa.lan 2.6.18-92.1.6.el5 #1 SMP Wed Jun 25 13:49:24 EDT 2008 > i686 i686 i386 GNU/Linux > > Message reported. (Note the number 268435455, which is 0xFFFFFFF, and occurs > every time I see this happen. You are backing up to NTFS on Linux? The NTFS file system specification is a trade secret last I checked.. Anytime I see an error where the number is binary all ones I suspect a magic number... and worry. How was the disk partitioned? How was this partition formatted? Was the filesystem converted from old to new ntfs format? http://technet.microsoft.com/en-us/library/cc781134.aspx -- NiftyCluster T o m M i t c h e l l

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Discuss September 2008