Discuss

discuss@lists.centos.org

34758 discussions

Directions please..
by Hal Davison 04 Feb '11

04 Feb '11

Greetings... OS: CentOS 5.5 Attempting to run a database, PROGRESS, give the error: error wile loading shared libraries: libstdc++libc6.2.2.so.3: cannot open shared object file: No such file or directory I am relatively a noob at CentOS. So you kind assistance in pointing me in the correct direction would be appreciated. --Hal. -- Hal Davison Observe Goal, Set the course, Burn the map Davison Consulting This correspondence was composed using Dragon Speaking Version 10 Peg#: 2007011701

6 9

Recovering LVM volumes
by Sanjay Arora 04 Feb '11

04 Feb '11

Hello all I have two sets of eIDE hard drives from earlier servers, one centos & one fedora. Both were LVM volumes with three or four physical disks, with ext3 fs. One disk, maybe even the boot one may even be missing, either from one or both sets and we do not know the disk order. I got these left from an earlier sysadmin who left the company & nobody know what's what. I need to recover data so I need to backup each of the disks to a disk image file first, then find block-size/recover lvm metadata on the volume, mount the volume to my current server and recover whatever files can be recovered manually. My question is: - what switches to be used with dd in creating the image, so that I retain the lvm disk data, for future recovery, if I mess up the recovery job? Can you please give the actual command assuming disk is connected at /dev/sdb? - How do I find the blocksize used by the disk & how do I get the meta-data and mount the disk to current lvm fs. Request please give me step by step process. I am finding the howtos & examples on the net very daunting as most of them have co-issues of raid etc. Mine is a plain lvm spanning multiple disks. I don't have expertise of this level & suddenly my boss is expecting me to perform a miracle. Please help. With best regards. Sanjay.

4 5

Does anybody know a PeerGuardian like app?
by S Mathias 04 Feb '11

04 Feb '11

Are there any programs blocking ip, and has frequently updated lists, like the peerguardian on windows? sorry for the question, but i looking for this kind of application :O Thank you, and a happy christmas!

6 5

LSI MegaRAID 320-2E PCIe RAID Controller
by Hugh E Cruickshank 04 Feb '11

04 Feb '11

Hi All: Has anyone tried using an LSI MegaRAID 320-2E PCIe RAID Controller in an HP DL380G5 (of any HP G5 DL for that matter) running CentOS 5? It looks like it should work but it would be nice to know that someone has already done it before I start going to all the effort and expense of building the box. I have a spare DL380 and a couple of IBM EXP400 disk arrays that I would like to configure as a backup database server. Any and all comments will be appreciated. Regards, Hugh -- Hugh E Cruickshank, Forward Software, www.forward-software.com

4 11

filter unwanted email
by testwreq wreq 04 Feb '11

04 Feb '11

I am new to CentOS. How do I set a rule to so that any email coming from @ linkedin.com (and other abused locations), going to an application RT (setup on the system), will get rejected or dropped silently.

7 7

Lost root access
by James Bensley 04 Feb '11

04 Feb '11

So on a virtual server the root password was no longer working (as in I couldn't ssh in anymore). Only I and one other know it and neither of us have changed it. No other account had the correct privileges to correct this so I'm wondering, if I had mounted that vdi as a secondary device on another VM, browsed the file system and delete /etc/shadow would this have wiped all users passwords meaning I could regain access again? (This is past tense because its sorted now but I'm curious if this would have worked? And if not, what could I have done?). -- Regards, James. http://www.jamesbensley.co.cc/ There are 10 kinds of people in the world; Those who understand Vigesimal, and J others...?

10 17

CentOS 4.8
by Y. K. Liu 03 Feb '11

03 Feb '11

Hi, I installed CentOS 4.8 (not CentOS 5) on VMware Fusion using an ISO file I downloaded. During the installation, it asked me to enter a user name and its password. I tried to enter root for the user name, but it would not let me do that. So I had to enter a non-root user name. So I did not have the root user name and password when the installation completed. I only had a non-privileged user name, and could not do any sudo work. How can I solve this problem? I noticed that CentOS 5 (not the 4.8 I needed to install) asking to enter the password for root during the installation. But I need to install CentOS 4.8, not 5. Thank you. Jerry

5 6

centos 5.5 check memoray usage too high???
by mcclnx mcc 03 Feb '11

03 Feb '11

We have DELL R900 server with 128GB RAM (CENTOS 5.5)in it. This server only have one application running and few people use it. Every week I ata least get one or two messages from monitor tool mail to me say: Message=Memory Utilization is 92.02%, crossed warning (80) or critical (90) threshold. Since server have 128 GB RAM and only 1 application. I really don't belive that. Does there has some way can check memory utilitation ? Thanks.

11 13

How to set GNOME-panel to several columns if needed?
by kellyremo 03 Feb '11

03 Feb '11

http://i.imgur.com/rUKeu.png how could i configure the GNOME-panel to have several columns [if there are many applications]? ~~like this: http://i.imgur.com/ElgAA.jpg Thank you!

2 1

Re: [CentOS] CentOS Digest, Vol 73, Issue 3
by Chuck Munro 03 Feb '11

03 Feb '11

On 02/03/2011 09:00 AM, Lamar Owen wrote: > ------------------------------ > > On Wednesday, February 02, 2011 08:04:43 pm Les Mikesell wrote: >> > I think there are ways that drives can fail that would make them not be detected >> > at all - and for an autodetected raid member in a system that has been rebooted, >> > not leave much evidence of where it was when it worked. If your slots are all >> > full you may still be able to figure it out but it might be a good idea to save >> > a copy of the listing when you know everything is working. > I'll echo this advice. > > I guess I'm spoiled to my EMC arrays, which light a yellow LED on the DAE and on the individual drive, as well as telling you which backend bus, which enclosure, and which drive in that enclosure. And the EMC-custom firmware is paranoid about errors. > > But my personal box is a used SuperMicro dual Xeon I got at the depth of the recession in December 2009, and paid a song and half a dance for it. It had the six bay hotswap SCSI, and I replaced it with the six bay hotswap SATA, put in a used (and cheap) 3Ware 9500S controller, and have a RAID5 of four 250GB drives for the boot and root volumes, and an MD RAID1 pair of 750GB drives for /home. The Supermicro motherboard didn't have SATA ports, but I got a 64-bit PCI-X dual internal SATA/dual eSATA low-profile board with the low-profile bracket to fit the 2U case. Total cost<$500. > Less than $500 for a Supermicro box? Holy crap, Batman! I'm using one of their motherboards (X8DAL-3) in a home-brew configuration, which has turned out to be somewhat less expensive than a factory-built Supermicro, but still not cheap. I'll say one thing for them ... they do make really nice stuff, with little extras the commodity makers like Asus or Gigabit don't include. Well worth the extra dollars. This box just screams, so it should handle KVM very nicely if I organize the arrays properly ... anyone with RAID-60 advice please chime in. I took Les' advice and built a connection map of the 15 drives. The Disk Utility GUI turned out to be useful once I determined the SATA breakout cable order and labelled each with its PHY number. Knowing that lets me use the GUI to clearly identify a failed drive, which shows up as a PHY#. I'm normally a command-line kinda guy but this utility is something I really like on RHEL-6. I hope it's the same on CentOS-6. I'll organize the disk arrays with this trial version of RHEL, on the assumption that CentOS-6 simply picks them up as-built. Chuck

6 7

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss