Discuss November 2008

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252 participants
254 discussions

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

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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

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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

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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

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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

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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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qlogic driver not scanning scsi bus on load CentOS 5.1
by nate 20 Nov '08

20 Nov '08

Very strange behavior, been banging my head against the wall on this one too. It works fine on CentOS 4.6, the behavior is when the driver loads the bus is not scanned or at least the devices that are exported are not detected. (they are detected in the HBA bios no problem). If I issue the qlogic bus scan command it doesn't get anything back either. If I manually add the devices with "scsi add-single-device" they immediately pop up. I am new to using FC on CentOS 5.x with 4.x it was so easy perhaps I should just stick to what works. Filing a support case with my vendors as well though not sure how much help they'll end up being. Running a "QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA". Tried both the drivers from qlogic's site and the ones that ship with CentOS. Once the devices are detected everything works fine. Though I don't want to hard code the "scsi add-single-device" commands into my startup scripts if I can avoid it, rather use CentOS 4.6 instead. Anyone seen this kind of behavior before? thanks nate

1 1

how to debug hardware lockups?
by Rudi Ahlers 20 Nov '08

20 Nov '08

Hi, We have a server which locks up about once a week (for the past 3 weeks now), without any warning, and the only way to recover it, is to reset the server. This causes unwanted downtime, and often software loss as well. How do I debug the server, which runs CentOS 5.2 to see why it locks up? The CPU is an Intel Q9300 Core 2 Quad, with 8 GB RAM, on an Intel Motherboard The last few entries before the server froze, is: Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:59008 Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: [127.0.0.1]:59008 Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:47729 Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: [127.0.0.1]:47729 Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:47890 Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: [127.0.0.1]:47890 Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:50023 Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: [127.0.0.1]:50023 Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:58459 Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: [127.0.0.1]:58459 Nov 15 10:10:10 saturn syslogd 1.4.1: restart. Nov 15 10:10:11 saturn kernel: klogd 1.4.1, log source = /proc/kmsg started. Nov 15 10:10:11 saturn kernel: Bootdata ok (command line is ro root=/dev/System/root) Nov 15 10:10:11 saturn kernel: Linux version 2.6.18-92.1.17.el5xen (mockbuild(a)builder10.centos.org) (gcc version 4.1.2 20071124 (Red Hat 4.1 .2-42)) #1 SMP Tue Nov 4 14:13:09 EST 2008 Nov 15 10:10:11 saturn kernel: BIOS-provided physical RAM map: Nov 15 10:10:11 saturn kernel: Xen: 0000000000000000 - 00000001ef958000 (usable) Nov 15 10:10:11 saturn kernel: DMI 2.4 present. Nov 15 10:10:11 saturn kernel: ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) Nov 15 10:10:11 saturn kernel: ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled) Nov 15 10:10:11 saturn kernel: ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) Nov 15 10:10:11 saturn kernel: ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled) Nov 15 10:10:11 saturn kernel: ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1]) Nov 15 10:10:11 saturn kernel: ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1]) Nov 15 10:10:11 saturn kernel: ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) Nov 15 10:10:11 saturn kernel: IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23 Nov 15 10:10:11 saturn kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) Nov 15 10:10:11 saturn kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) -- Kind Regards Rudi Ahlers

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Terminal emulation scripting
by Frank M. Ramaekers 20 Nov '08

20 Nov '08

I need to write a script that will contact a remote system using TELNET with VT52/1xx/2xx/320 and perform some operations. I am familiar with TELNET but it appears that it won't work for my purposes. TIA, Frank M. Ramaekers Jr. Systems Programmer MCP, MCP+I, MCSE & RHCE American Income Life Insurance Co. Phone: (254)761-6649 1200 Wooded Acres Dr. Fax: (254)741-5777 Waco, Texas 76710 _____________________________________________________ This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at PrivacyAct(a)ailife.com.

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CentOS/RHEL, PHP and zip archives
by David G. Miller 20 Nov '08

20 Nov '08

I'm trying to get bulk photo uploads working with a Drupal web site. The person who coded the Drupal photos module I'm using decided to use a zip archive as a means of batching together a collection of picture files for a bulk upload. Apache is reporting the following PHP error when the bulk upload feature is used: [Sun Nov 16 22:05:38 2008] [error] [client 192.168.0.192] PHP Fatal error: Class 'ZipArchive' not found in /var/www/fraud/html/davesBlog/sites/all/modules/photos/photos.module on line 1375, referer: http://davenjudy.org/davesBlog/node/39/photos The PHP code at line 1375 in photos.module is an unremarkable instantiation of the zip archive handling object. Some Google searches indicate that zip archive handling is a compile time option of PHP and lack of it would cause this error. Running php -i tells me that the CentOS/RHEL PHP was not built with the --enable-zip configuration option. Does anyone know of a way to get PHP to correctly handle zip archives short of rebuilding my PHP installation from the source RPM with --enable-zip as a configuration option? Thanks, Dave Miller -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

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Discuss November 2008