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34753 discussions

tcpdump
by Joseph L. Casale 21 Nov '08

21 Nov '08

I have an issue with only a few domains sending mail to a company's exchange server. Topology is as follows: Internet -> PIX -> logical interface / vlan -> HP switch (interface tagged into applicable vlan) -> ESXi server -> vm (ASSP/CentOS Postfix MTA) -> HP switch (out of vlan) -> physical HP server with E2003. Mail comes in, ASSP logs it, postfix logs it, queues it, attempts delivery to my exchange server and somewhere com gets mangled. I can't tell what's wrong at the postfix side, but the exchange server doesn't even log it despite the mail getting queued and released? How can I dump this interaction and more specifically sort it to see only that transaction. Server is busy, there would be a lot of data on a continuous dump. Given the topology there is room for much issues and I don't doubt the issue being from ESX forward (seen silly network issues on ESX before). Thanks for any input! jlc

1 0

Syslog question
by Marc G. 20 Nov '08

20 Nov '08

I may be posting to the wrong list here, and in that case I apologize in advance, but is there a way to configure the standard Centos 5 syslog daemon to use more local facilities than local0 to local7? Thank you. -- m

3 6

Can't start pand -- is the problem in /etc/rc.d/init.d/pand?
by Robert Moskowitz 20 Nov '08

20 Nov '08

I have been stepping into pand. There is nothing I can find on this list about getting pand working. There are some instructions on wifi.bluez.org that seem to be redhatish, but.... I have edited /etc/sysconfig/pand: PANDARGS='--listen --role GN --master' I have created a /etc/sysconfig/network-scripts/ifcfg-bnep0: DEVICE=bnep0 BOOTPROTO=none ONBOOT=no IPADDR=192.168.201.101 NETMASK=255.255.255.0 I run: service pand start nothing happens. I look at: /etc/rc.d/init.d/pand and see: [ -x /etc/bluetooth/pan/system-up ] && /etc/bluetooth/pan/system-up huh? My system does not have an /etc/bluetooth/pan directory. there is a /etc/sysconfig/network-scripts/ifup-bnep what am I missing here?

1 1

Migration from VMWare to HP Blade
by Matthew Walster 20 Nov '08

20 Nov '08

Hi all, A few months ago, I migrated some of our internal servers to HP blades, as the VMWare box they were previously running on was getting too slow. However, it wasn't without it's problems, and eventually the only way I could get them to work was: Install the same version of CentOS on the blade (believed to be 5.0, but /etc/redhat-release says 5.2) Took down both servers, booting them off the SystemRescueCD, mounting all the partition on /mnt/transfer etc Ran rsync to copy all the data from one to the other - except /boot and /lib/modules Brought the blade up, and saw that it booted fine. However, a new kernel has been released and we tried rebooting... And it panicked. It seems to be LVM related, in that it can't mount /dev/root - and I've tried manually running mkinitrd to regenerate the initrd to no avail. I was just wondering if anyone had encountered similar problems, and knew of any solutions? I'm from a debian background, so am a little unused to certain aspects - when a yum upgrade installs a new kernel, where does it pull the information for boot from? A configuration stanza from within grub's menu.lst? Regards, Matthew Walster

5 9

I need help with CentOS installation on a Core 2 Duo Laptop
by Sadaruwan Samaraweera 20 Nov '08

20 Nov '08

Hi, I've tried to install CentOS 5.2 on Core 2 Duo T5750 2.0Ghz laptop but what happens is every thing hangs up when anconda system installer starts. So I tried PCLinuxOS in it's text-based installer it detects the CPU core 1 and when it try to detected the other one system gets stuck. I tried these same two distro's on another PC that have a AMD X2 CPU on this PC I didn't had that problem everything went smoothly. Thank you -- Sadaruwan Samaraweera

5 5

kmod-kvm
by Jamie Wilch 20 Nov '08

20 Nov '08

I use qemu-kvm on a Centos 5.2 server to run Windows XP virtually. Usually a new kmod-kvm packages is released shortly after a kernel update, and yum updates them both very nicely. However, two new kernel updates have been released now without a kmod-kvm update. Does anyone know if this package is still being supported? Thanks Jamie

2 1

Samba Source
by Bo Lynch 20 Nov '08

20 Nov '08

I am trying to install the source code for samba. I have samba-3.0.28-1.el5_2.1 When I try and install the samba-3.0.28-1.el5_2.1.src.rpm. I get the following..... rpm -ihv samba-3.0.28-1.el5_2.1.src.rpm 1:samba warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root ########################################### [100%] error: unpacking of archive failed on file /usr/src/redhat/SOURCES/samba-3.0.28.tar.gz;492423fc: cpio: read Installing the original samba src rpm samba-3.0.28-0.el5.8.src.rpm works with no probs just the latest. Thanks in advance for any info. -- Bo Lynch

4 6

Why noapic acpi=off on new Centos 4.6 system?
by tony＠softins.clara.co.uk 20 Nov '08

20 Nov '08

I just installed CentOS 4.6 (because I had 4.6 media handy) on a new system, which has a SuperMicro PDSMi mobo with an E4600 CPU. I then did yum update to get to 4.7, although I don't think that's relevant to my query. I wondered why "shutdown -h" would not power down the system. I then also discovered that the soft power button did not initiate a switch to runlevel 0 to do a controlled shutdown. When I looked in grub.conf, I discovered that the installer had included the boot parameters "noapic acpi=off". I removed them and rebooted, and then found that both soft shutdown from the power button and the final poweroff worked fine. I haven't stressed the system yet, but it seems to boot and run fine. My question is (at last): why did the installer decide it necessary to include "noapic acpi=off"? Previous installs of CentOS on other hardware have not done that. Cheers Tony -- Tony Mountifield Work: tony(a)softins.co.uk - http://www.softins.co.uk Play: tony(a)mountifield.org - http://tony.mountifield.org

2 2

Maybe a dumb question, but....
by Sam Drinkard 20 Nov '08

20 Nov '08

Folks, I am totally ignorant about xen, and while I've been doing a little reading, I've not yet figured out if xen is running under CentOS or if CentOS is running under xen on this 5.2 version of CentOS. I do know that the whole system from the user standpoint is way slower than it was under 4.7. Heck, I can't even find much on what to do with xen, much less figure out how to use it. Question... is there a kernel for 5.2 that does not have xen built into it, and if so, where is it? Perhaps someone can give me a short tutorial about its value or use, or point me to a place where it's use is described in lay terms? I'm very comfortable with CentOS, but this is a whole 'nother ball game ! Thanks.. Sam

4 4

Re: [CentOS] noauto option ignored in CentOS 5.1?
by nate 20 Nov '08

20 Nov '08

nate wrote: > Found the root issue here I believe in /etc/rc.sysinit > > if [ "${RHGB_STARTED}" != "0" -a -w /etc/rhgb/temp/rhgb-console ]; then > fsck -T -t noopts=_netdev -A $fsckoptions > After changing _netdev above to "noauto" the system boots normally. I'm not sure if I could specify noopts=_netdev,noauto or what the syntax is, can't find that syntax in the docs. Before: device-mapper: create ioctl failed: Device or resource busy Setting up Logical Volume Management: Volume group "san-p-mysql001a-db" is exported Volume group "san-p-mysql001a-log" is exported [FAILED] Checking filesystems Checking all file systems. [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda3 /1: clean, 80554/59834368 files, 2441697/59807986 blocks [/sbin/fsck.ext3 (1) -- /san/MrT/mysql/db] fsck.ext3 -a /dev/san-p-mysql001a-log/san-p-mysql001a-log fsck.ext3: No such file or directory while trying to open /dev/san-p-mysql001a-log/san-p-mysql001a-log /dev/san-p-mysql001a-log/san-p-mysql001a-log: The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> [/sbin/fsck.ext3 (1) -- /san/MrT/mysql/log] fsck.ext3 -a /dev/san-p-mysql001a-db/san-p-mysql001a-db fsck.ext3: No such file or directory while trying to open /dev/san-p-mysql001a-db/san-p-mysql001a-db /dev/san-p-mysql001a-db/san-p-mysql001a-db: The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> [/sbin/fsck.ext3 (1) -- /boot] fsck.ext3 -a /dev/sda1 /boot: clean, 35/26104 files, 17544/104388 blocks [FAILED] *** An error occurred during the file system check. *** Dropping you to a shell; the system will reboot *** when you leave the shell. Give root password for maintenance (or type Control-D to continue): after: Setting up Logical Volume Management: Volume group "san-p-mysql001a-db" is exported Volume group "san-p-mysql001a-log" is exported [FAILED] Checking filesystems Checking all file systems. [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda3 /1: clean, 80554/59834368 files, 2441697/59807986 blocks [/sbin/fsck.ext3 (1) -- /boot] fsck.ext3 -a /dev/sda1 /boot: clean, 35/26104 files, 17544/104388 blocks [ OK ] Remounting root filesystem in read-write mode: [ OK ] Mounting local filesystems: [ OK ] Enabling /etc/fstab swaps: [ OK ] [..] Starting mount_san: Scanning and activating SAN-based volume groups PV /dev/dm-3 is in exported VG san-p-mysql001a-db [2.00 TB / 1.51 TB free] PV /dev/dm-2 is in exported VG san-p-mysql001a-log [1023.99 GB / 973.99 GB free] Total: 2 [3.00 TB] / in use: 2 [3.00 TB] / in no VG: 0 [0 ] Volume group "san-p-mysql001a-db" successfully imported Volume group "san-p-mysql001a-log" successfully imported Checking LVM SAN filesystems.. e2fsck 1.39 (29-May-2006) /dev/san-p-mysql001a-db/san-p-mysql001a-db: clean, 11/128000 files, 63258/131072000 blocks e2fsck 1.39 (29-May-2006) /dev/san-p-mysql001a-log/san-p-mysql001a-log: clean, 11/12800 files, 22733/13107200 blocks Finished checking LVM SAN filesystems.. Scanning and mounting multipathed filesystems.....[/san/MrT/mysql/db]....[/san/MrT/mysql/log]..done! [ OK ] So will file a bug with RH I suppose to get them to tweak that so that "noauto" behaves as expected. nate

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