Discuss September 2010

discuss@lists.centos.org

225 participants
168 discussions

Transferring system to new drive
by Timothy Murphy 29 Sep '10

29 Sep '10

Is there a document with instructions for this? I've had smartd warnings that a hard disk in my server is sick, so I am installing a new drive (in addition to the old). I was thinking of copying the old root partition with sudo cp -a -P /* /mnt/hd (after mounting the prospective new root partition). Then I'd have to modify the new /etc/fstab . Is that a sensible approach? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

17 34

qemu
by mattias 29 Sep '10

29 Sep '10

How to start qemu in textmode The --curses option are removed

3 9

netstat - kill by pid ?
by Carlos S 29 Sep '10

29 Sep '10

I am writing a small script to kill process(es) listening on particular port number. Here I am particularly looking at Java servlet-containers like Tomcat and JBoss, which sometimes don't complete their shutdown process and it still shows up as running process with ps or netstat. This needs to be kill-ed and for that knowing pid of that process is necessary. The netstat by default doesn't give only pid(s), so one has to use sed/awk/tr like utility to extract pid info. Does anyone know any program/utility which gives pid(s) based on listening port numbers? Or is there any option in netstat that I am missing? Thanks, CS.

4 4

Centos-ds directory console problem
by guy＠desgames.com 28 Sep '10

28 Sep '10

I installed centos-ds on a 5.5 installation, following the instructions to a tee, however now when I log onto the Directory Console I only get the Servers and Applications and Users and Groups tabs - no Configuration or Tasks tabs. Initially I was using the wrong password for the Directory Manager user, but when I put in the correct password it just sat there saying "Authenticating Directory Manager..." (something like that). So I followed the instructions to change the password, but now it just does the same thing as before - lets me in, but with no Configuration or Tasks tabs. Obviously I'm being logged in as just an admin user as I can add users, groups and ou's to the tree. Any help on this would be most appreciated. Thanks, Guy

1 0

A question about DRBD and nfs
by Chuck Payne 28 Sep '10

28 Sep '10

Hi, I been working on for about a month and half on setup drbd and nfs. I keep running into issue with the way heartbeat/pacemaker handles nfs. Does anyone know a good way to set up a HA NFS server with DRBD and Heartbeat and NFS. I am willing to share my pain in setting it up. Chuck Payne NEO Linux System Engineer chuck.payne(a)vocolacity.com

2 1

ethtool
by m.roth＠5-cent.us 28 Sep '10

28 Sep '10

We've just moved one a new server from our sever room, where I built it, to the datacenter. We want to force autoneg off, and tell it gigabit and full duplex. Using ethtool, I get no errors setting the speed or duplex. HOWEVER, autoneg on works... and autoneg off utterly refuses to work, and gives: ethtool -s eth0 autoneg off Cannot set new settings: Invalid argument not setting autoneg We're on the most current update of CentOS (ok, last kernel, that will come up on the reboot I'll do shortly), and it's a Broadcom Corporation NetXtreme II BCM5716 Gigabit Ethernet Anyone have an idea what's going on here? mark

3 4

RAID rebuild time and disk utilization....
by Tom Bishop 28 Sep '10

28 Sep '10

So I'm in the process of building and testing a raid setup and it appeared to take along time to build I came across some settings for setting the min amount of time and that helped but it appears that one of the disks is struggling (100 utilization) vs the other one...I was wondering if anyone else has seen this and if so, is their a solution for it...my 2 disks are 1 Samsung F3 1tb /dev/sdb and 1 Seagate 7200.12 1Tb /dev/sdc...smartctl looks good on both.... sar -dbpqu -P ALL 60 1 Linux 2.6.18-194.11.4.el5 (dpcserver) 09/27/2010 10:09:41 AM CPU %user %nice %system %iowait %steal %idle 10:10:41 AM all 0.03 0.00 1.11 0.00 0.00 98.86 10:10:41 AM 0 0.00 0.00 0.00 0.00 0.00 100.00 10:10:41 AM 1 0.10 0.00 1.25 0.00 0.00 98.65 10:10:41 AM 2 0.00 0.00 3.18 0.02 0.00 96.80 10:10:41 AM 3 0.00 0.00 0.02 0.00 0.00 99.98 10:09:41 AM tps rtps wtps bread/s bwrtn/s 10:10:41 AM 838.27 836.41 1.87 107059.98 32.54 10:09:41 AM DEV tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util 10:10:41 AM sda 0.93 0.00 16.27 17.43 0.00 2.12 0.29 0.03 10:10:41 AM sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:10:41 AM sda2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:10:41 AM sda3 0.93 0.00 16.27 17.43 0.00 2.12 0.29 0.03 10:10:41 AM sdb 209.10 26764.99 0.00 128.00 30.90 148.02 4.78 100.02 10:10:41 AM sdb1 209.10 26764.99 0.00 128.00 30.90 148.02 4.78 100.02 10:10:41 AM sdc 209.10 26764.99 0.00 128.00 0.41 1.94 0.60 12.57 10:10:41 AM sdc1 209.10 26764.99 0.00 128.00 0.41 1.94 0.60 12.57 10:10:41 AM md0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10:09:41 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 10:10:41 AM 0 167 1.02 1.03 1.00 Thanks in advance.....

5 12

how to get ASUS USB-N13 802.11n net adapter working on 5.5?
by Robert P. J. Day 28 Sep '10

28 Sep '10

first, the short form of the question -- has anyone got that wireless adapter working on centos 5.5 and associated with an access point that uses WPA/WPA2 security? and the details. in a classroom where there is *no* wired networking at all, all PCs have only that wireless net adapter, which works fine on windows but, after installing centos 5.5, unsurprisingly, we have no networking. there is no backup wired network, and no other adapters. there is a CD that came with the adapters, with a Linux directory, so it was easy enough to dump that onto my personal centos 5.5 box, and run "make" which generated the loadable "rt3070sta.ko" module. and, yes, that module loads. so far, so good. however, that still doesn't do it as based on what i've read online), because the access point here uses WPA/WPA2, i need to use wpa_supplicant to be able to configure the wireless interface for that. and that's about when i got kicked out of the classroom as they were closing for the evening. thoughts? any advice humongously appreciated. rday -- ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Top-notch, inexpensive online Linux/OSS/kernel courses http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================

4 4

Dell HSPA 5530 - Built-in 3G - Not detected
by Janne Nyman 28 Sep '10

28 Sep '10

Hi all, I have been trying to get CentOS 5.5 running on my Laptop for a while now. I am currently running Fedora 13 for the only reason that my Dell Wireless HSPA 5530 built-in 3G Mobile Device is working. I have tried loading the bcm43xx modules after reading several posts on Google but not able to get this working at all. I have run CentOS on my servers for a while now and love it. Just this last bit that holds me back from going fullt to CentOS. My laptop is a Dell E6400 and I have tried with both x86 and x86_64 without luck. Has anyone else got this working or have any clues to the steps I can take to get closer to a working solution? -- Rgds, Janne Nyman E: jnyman(a)jbtec.org

3 2

logwatch question
by lostson 28 Sep '10

28 Sep '10

Hello A few weeks ago I started having problems with my system email or specifically my logwatch reports showing up in my inbox. I got most of those issues figued out except one now when i get an email from my system it has a title of this Cron <root@localhost> run-parts /etc/cron.daily with this message /etc/cron.daily/0logwatch: Recipient names must be specified I have my aliases set right and have been googling for an answer and just cant seem to find anything pointing me in the right direction. But this has been going on for awhile now and i would like to get my normal reports back that i used to get. I have never had to do much else except set my aliases file up correctly and i just always got the daily reports. I am probably missing something amazingly simple but i just cant seem to find it any ideas, thanks. LostSon http://lostsonsvault.org

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Discuss September 2010