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dhcpd errors
by Kanwar Ranbir Sandhu 17 Jan '07

17 Jan '07

Hello Everyone, I'm running a dhcp server on CentOS 4.4. It's providing IPs and remote booting for a number of thin clients. I've recently had problems rebooting a few thin clients. Here is the error I've been seeing: Jan 16 14:16:45 at01 dhcpd: DHCPRELEASE from 00:40:63:e5:71:4f specified requested-address. Jan 16 14:16:45 at01 dhcpd: DHCPRELEASE of 10.1.1.150 from 00:40:63:e5:71:4f via eth0 (not found) Depending on the thin client, the MAC and the IP changes. Otherwise, the errors are all the same. The effect on the thin client end is that it doesn't get an IP, and so it doesn't boot. The usual remedy is to unplug/plug-in the cat5 cable at the thin client, or to move the thin client to another network drop. This has me thinking there's a problem with the cat5 cabling (the office is going through a major renovation). But, I'm not 100% that is the case. It could be a problem with the dhcp server. I don't have easy access to that office - it's remote, and I'm only out there once every few months. It's why I want to make sure it's not a software problem first. At the moment I have no clue what's going on. My searching with google hasn't turned up anything useful. I'd appreciate any comments/suggestions. Regards, Ranbir -- Kanwar Ranbir Sandhu Linux 2.6.18-1.2869.fc6 i686 GNU/Linux 14:18:36 up 3 days, 23:55, 2 users, load average: 0.42, 0.30, 0.25

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intel pro 100 VE ethernet card
by Hiep Nguyen 17 Jan '07

17 Jan '07

Hi everyone, does any one know how high the packets (sent & received) will reach? i'm looking for a limit number (e.g. 99,999,999). and what happen when it reaches to the limit? Does it reset itself to 1 again? thanks

1 0

at boot disabling IRQ #193 then nothing
by Jerry Geis 17 Jan '07

17 Jan '07

All, I have a new box. Gigabyte motherboard AM2 sempron 3200+. CentOS installed fine, I rebooted after the install. It booted fine again. I ran yum -y update and now after that on boot it says Initializing hardware Storage network audio done Disabling IRQ #193 and then nothing. just sets there.... Any ideas on that??? Jerry

4 3

mount old LVM drive
by Chuck Wow 17 Jan '07

17 Jan '07

How can I mount an old LVM drive into a new system so I can view the old files? I want to mount it as /mnt/backup fdisk -l Disk /dev/sda: 160.0 GB, 160000000000 bytes 255 heads, 63 sectors/track, 19452 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 19452 156143767+ 8e Linux LVM Disk /dev/sdb: 160.0 GB, 160000000000 bytes 255 heads, 63 sectors/track, 19452 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 13 104391 83 Linux /dev/sdb2 14 19452 156143767+ 8e Linux LVM when I do mount -t ext3 /dev/sdb2 /mnt/backup mount: wrong fs type, bad option, bad superblock on /dev/sdb2, or too many mounted file systems any help would be greatly appreciated! Chuck

2 1

Dual Heads?
by Peter Serwe 17 Jan '07

17 Jan '07

I decided to blow out the FC2 installation I inherited on my workstation when I started here and installed CentOS-4.4-i386. Server side stuff I pretty much have down cold, but getting two heads on two seperate video cards doesn't seem to work for me. I'm using the built in Intel 865/810 card as primary, and an ATI Radeon 9200 PCI card as secondary. Initially, my system bios on this Dell 4600 was set to Auto for which card is primary. That made the ATI card primary. Configuring the 865 card as secondary, and I have the same monitor on both heads, didn't seem to do anything for me. Then, I set the onboard video as primary, went back into system-config-display and configured the ATI card as secondary, logout/login still nothing changed. I'm trying to get it to configure as 'spanning desktops', so I just have twice as much real estate, and ideally can drag in between. Anyone have suggestions? Also, in general, the wm is pretty bland, so suggestions to make it a little more fun would be good too. :) Peter -- Peter Serwe <peter at infostreet dot com> http://www.infostreet.com "The only true sports are bullfighting, mountain climbing and auto racing." -Earnest Hemingway "Because everything else requires only one ball." -Unknown "Do you wanna go fast or suck?" -Mike Kojima "There are two things no man will admit he cannot do well: drive and make love." -Sir Stirling Moss

5 9

eSATA
by Andrew Cotter 16 Jan '07

16 Jan '07

Has anyone ever triend to hang a eSATA drive chasis off oc a centos box? Not specifically this box, but something like this.... http://www.compsource.com/ttechnote.asp?part_no=DS1220&src=F I have used internal SATA drives on 3ware cards before without an issue. Didn't know if this was in the same arena. Thanks! Andrew

2 1

Thank You
by Mendy Roncal 16 Jan '07

16 Jan '07

Thank you for your e-mail. I'll be in touch soon.

3 2

Re: error, While mounting an Audio Cdrom.
by jlee＠pbu.edu 16 Jan '07

16 Jan '07

I am not available at the moment. Jay Lee

1 0

Fwd: error, While mounting an Audio Cdrom.
by Indunil Jayasooriya 16 Jan '07

16 Jan '07

Hi, I tried to mount an audio cdrom to listen to its music. But It gives the below error. why is that ? -- [root@worldnet ~]# mount /dev/hdc /media/cdrom/ /dev/hdc: Input/output error mount: block device /dev/hdc is write-protected, mounting read-only /dev/hdc: Input/output error mount: /dev/hdc: can't read superblock [root@worldnet ~]# Thank you Indunil Jayasooriya -- Thank you Indunil Jayasooriya

4 4

Disk Elevator
by Matt 16 Jan '07

16 Jan '07

Can anyone explain how the disk elevator works and if there is anyway to tweak it? I have an email server which likely has a large number of read and write requests and was wandering if there was anyway to improve performance. Matt

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