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backing up with dump and DLT
by Israel.garcia 13 Sep '07

13 Sep '07

Hi, I have a CentOS 4.1 (with a two hdds RAID 1 using mdadm) running some database system.... I connected a DLT device on its SCSI interface (/dev/nst0) in order to make some external backup..... I dump several filesystems (/, /boot /usr /var /home and others)....so and when I try to dump manualy for expmple /boot I get this: [root@Server ~]# dump -0vuf /dev/nst0 /boot DUMP: Date of this level 0 dump: Thu Sep 13 16:00:02 2007 DUMP: Dumping /dev/md0 (/boot) to /dev/nst0 DUMP: Excluding inode 8 (journal inode) from dump DUMP: Excluding inode 7 (resize inode) from dump DUMP: Label: none DUMP: Writing 10 Kilobyte records DUMP: mapping (Pass I) [regular files] DUMP: mapping (Pass II) [directories] DUMP: estimated 5706 blocks. DUMP: Volume 1 started with block 1 at: Thu Sep 13 16:00:02 2007 DUMP: dumping (Pass III) [directories] DUMP: dumping directory inode 2 DUMP: ACLs in inode #2 won't be dumped DUMP: dumping directory inode 11 DUMP: dumping directory inode 14057 DUMP: ACLs in inode #14057 won't be dumped DUMP: dumping (Pass IV) [regular files] DUMP: dumping regular inode 12 DUMP: ACLs in inode #12 won't be dumped DUMP: dumping regular inode 13 DUMP: ACLs in inode #13 won't be dumped DUMP: dumping regular inode 14 DUMP: ACLs in inode #14 won't be dumped DUMP: dumping regular inode 15 DUMP: ACLs in inode #15 won't be dumped . . . . . DUMP: ACLs in inode #14072 won't be dumped DUMP: dumping regular inode 14073 DUMP: ACLs in inode #14073 won't be dumped DUMP: Closing /dev/nst0 DUMP: Volume 1 completed at: Thu Sep 13 16:00:06 2007 DUMP: Volume 1 5710 blocks (5.58MB) DUMP: Volume 1 took 0:00:04 DUMP: Volume 1 transfer rate: 1427 kB/s DUMP: 5710 blocks (5.58MB) on 1 volume(s) DUMP: finished in 1 seconds, throughput 5710 kBytes/sec DUMP: Date of this level 0 dump: Thu Sep 13 16:00:02 2007 DUMP: Date this dump completed: Thu Sep 13 16:00:06 2007 DUMP: Average transfer rate: 1427 kB/s DUMP: DUMP IS DONE So, I think I have some problem with dump and some other ACls (maybe selinux).... but the fact is that I can't restore nothing because it seems to be dumping only / filesystem (/dev/md0).. all other filesystems are not in the tape device....I disabled selinux on this server and nothing... I always received this error when dumping (ACLs in inode won't be dumped) Please, I'm now looking in google but I'd like to hear your opinion about this error... Is the DLT devide broken? Am I making somethig wrong with the command dump? thanks in advance Israel

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change to ping
by Graham Johnston 13 Sep '07

13 Sep '07

Has anyone else noticed with CentOS 5, that ping now starts at icmp_seq 1 instead of 0. It's clearly not a problem, just curious if anyone knows why it changed. Graham

1 0

Clarifications
by centos＠911networks.com 13 Sep '07

13 Sep '07

Hi, I was wondering, rhel5/centos5 is 686, but when I went to http://dag.wieers.com , the packages for rhel5 are either 386 or x86_64. Why? Should I recompile them for 686 or is it a waste of time or it makes no difference or... -- Thanks http://www.911networks.com When the network has to work

2 1

Kickstart install surprise
by Bill Campbell 13 Sep '07

13 Sep '07

I have to say that I was more that a bit surprised, if not to say dismayed when I booted a system with CentOS 5 installed to test a kickstart CD in interactive mode, took it to the custom partitioning screen, then rebooted without saving anything only to come up with a grub prompt, and the disk's partition table wiped. The ks.cfg file did say to wipe the disk when installing, but I would expect that it wouldn't do this in interactive mode until one told it to start the installation. I have been installing Linux systems for well over a decade, starting with Caldera Network Desktop 1.0, all versions of Caldera through 2001, and SuSE from 8.1 through SLES10, and never have I seen an installation procedure that would write to anything on the hard drive without asking first. This certainly violates the Principle of Least Surprise. Bill -- INTERNET: bill(a)celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way FAX: (206) 232-9186 Mercer Island, WA 98040-0820; (206) 236-1676 When dealing with any spammer, one must always keep in mind that you are dealing with someone who makes their living through forgery, fraud, theft, subterfuge and obfuscation. Stated simply, spammers lie. David Ritz <dritz(a)primenet.com>

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hardware raid vs fake raid
by Tom Diehl 13 Sep '07

13 Sep '07

Hi, Does anyone know how I can find out if an ibm serveraid 8k sas storage controller (zero channel RAID) is a real hardware RAID controller and supported in the standard CentOs kernel or is it a fake raid controller. I am trying to decide if I should get the serveraid controller or go get a 3ware controller. Regards, -- Tom Diehl tdiehl(a)rogueind.com Spamtrap address mtd123(a)rogueind.com

5 14

New mysql for the CentOSPlus repository includes mysql-cluster
by Johnny Hughes 13 Sep '07

13 Sep '07

CentOS has been distributing the Enterprise version of MySQL as part of our CentOS Web Stack that is in the CentOSPlus repository of CentOS-4 for quite a while. http://wiki.centos.org/Repositories/CentOSPlus/CentOSWebStack MySQL has recently changed it's policy concerning the distribution of it's Enterprise Sources (they no longer distribute them as a tarball): http://www.linux.com/feature/118489 CentOS has also had problems getting Red Hat to distribute their GPL'ed SRPM to us for the Enterprise MySQL version of their Red Hat Web Application Stack (due to an agreement between MySQL and Red Hat): https://bugzilla.redhat.com/show_bug.cgi?id=230412 However, as you have come to expect from the CentOS project ... we did not take these answers to mean that we would not be able to get the Enterprise Sources for MySQL and distribute enterprise grade RPMS to our customers. I would like to publicly thank Proven Scaling, LLC <http://www.provenscaling.com/> (and specifically Jeremy Cole) for continuing to provide the GPL'ed tarball in question. Because of their efforts and because of the organization that they contribute to known as Dorsal Source <http://www.dorsalsource.org/> we will continue to be be able to easily provide the CentOS community with updated enterprise RPMS for MySQL. I would also like to personally recommend Proven Scaling, LLC for any and all MySQL related work that you might need to have accomplished, they are good people :D That said, the latest version of MySQL that we are building for the CentOS Web Stack has a package called mysql-cluster. It was added upstream in version 5.0.40 of the upstream product and this (mysql-cluster-5.0.48-1.el4.centos.i386.rpm and mysql-cluster-5.0.48-1.el4.centos.x86_64.rpm) is it's first appearance in the CentOS Web Stack. The mysql-cluster files are produced by adding this switch to the compile mysql configuration statement: --with-ndbcluster For information about how you would use mysql-cluster, please see this mysql documentation: http://dev.mysql.com/doc/refman/5.0/en/mysql-cluster.html This new mysql-cluster package is not required for normal mysql operations, and will be available also for CentOS-5 from the testing repository soon. NOTE: for anyone who wants to upgrade their MySQL in CentOS-4, you need to follow this guide if moving from the standard CentOS-4 (mysql-4.1.x) to the CentOS webstack (mysql-5.0.x): http://dev.mysql.com/doc/refman/5.0/en/upgrade.html Thanks, Johnny Hughes

5 4

ASTERISK BOX behind a filewall
by Indunil Jayasooriya 13 Sep '07

13 Sep '07

Hi All, I want to put a ASTERISK BOX bend a Firewall. So I have given below rules. iptables -A FORWARD -p udp -d 192.168.101.30 -m multiport --dports 3478,4569,5060 -m state --state NEW -j ACCEPT iptables -A FORWARD -p udp -d 192.168.101.30 --dport 10000:20000 -m state --state NEW -j ACCEPT iptables -t nat -A PREROUTING -p udp -i eth0 -d 1.2.3.4 -m multiport --dports 3478,4569,5060 -j DNAT --to-destination 192.168.101.30 iptables -t nat -A PREROUTING -p udp -i eth0 -d 1.2.3.4 --dport 10000:20000 -j DNAT --to-destination 192.168.101.30 pls assume 1.2.3.4 is the ip that connects to the internet. I use Xlite sotphone to talk. I can register. it says user ready. I can dial extentions as well. But , WHEN I talk , Both parties can not hear anyrhing. in rtp.conf file, PORT 10000 to 20000 are also available. Hope to hear from you. -- Thank you Indunil Jayasooriya

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Migrating from RHEL5 to CentOS-5 -- little report
by Joachim Backes 13 Sep '07

13 Sep '07

Hi, Starting with http://wiki.centos.org/FAQ/CentOS3 I wanted to test how to migrate my x86_64 machine from in installed RHEL5 (fully updated) to the current CentOS5 without reinstalling. The steps I had to do were: 1. steps in RHEL5: a. yum clean all b. installing RPM-GPG-KEY-CentOS-5.htm from http://mirror.centos.org/centos/ (by rpm) c. installing by rpm from http://mirror.centos.org/centos/5/os/x86_64/CentOS/ the rpm's centos-release centos-release-notes redhat-logos yum partially I had to use the --force option for rpm. d. Trying yum upgrade. This step failed with the error msg: ---------------------------------------------------------------------------- Error Message: Your account does not have access to any channels matching (release='5', arch='x86_64-redhat-linux') If you have a registration number, please register with it first at http://www.redhat.com/apps/activate/ and then try again. Error Class Code: 19 Error Class Info: Architecture and OS version combination is not supported. Explanation: An error has occurred while processing your request. If this problem persists please enter a bug report at bugzilla.redhat.com. If you choose to submit the bug report, please be sure to include details of what you were trying to do when this error occurred and details on how to reproduce this problem. ----------------------------------------------------------------------------- I found out that files in /etc/sysconfig/rhn were responsible for this behaviour, so i uninstalled rhn-client-tools (from RHEL5) using the --justdb option and moving /etc/sysconfig/rhn to /etc/sysconfig/rhn.bak. Because /etc/sysconfig/rhn belongs to the centos-release package too, I made a re-install of this package. e. Now I could run yum upgrade which upgraded my system to CentOS-5 without any error msg. f. reboot into CentOS 2. Steps in CentOS a. the grub entries in /boot/grub/menu.lst were not updated: The title commands had to be changed to Centos, but re-installing the kernel had the same effect. b. Booting into initmode 5 and trying a graphical login failed because of missing themes (/usr/share/gdm/themes/CentOSCubes/CentOSCubes.xml) which belong to the redhat-artwork package. After reinstalling this package all OK. 3. The time I needed for migrating: about 15 Min. I think this time may be reduced if all pitfalls are known _before_ starting the migration. Any issues? Regards Joachim Backes <joachim.backes(a)rhrk.uni-kl.de> University of Kaiserslautern,Computer Center [RHRK], Systems and Operations, High Performance Computing, D-67653 Kaiserslautern, PO Box 3049, Germany -------------------------------------------------- Phone: +49-631-205-2438, FAX: +49-631-205-3056 http://hlrwm.rhrk.uni-kl.de/home/staff/backes.html

1 0

php 5.2
by Melinda Odom 13 Sep '07

13 Sep '07

Hi, I was asking about php 5.2 because I would like to use this program with these requirements: http://www.magentocommerce.com/system-requirements This ecommerce store is built with the zend framework and requires php 5.2. Mcrypt is not in the centos mirrors either. I did manage to get this beta ecommerce store installed on php 5.1.6-12 by removing the mycript line in the install xml file and also changing the initial install page code to not be less than 5.1 I wouldn't think this would be good to do for a production program. I would prefer to stay with the centos mirror as this is what I have setup. Hopefully centos will have php 5.2 in the future. Thanks! Sincerely, Melinda Odom Design Hosting, Inc. www.designhosting.biz 479-471-0891 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.485 / Virus Database: 269.13.12/997 - Release Date: 9/9/2007 10:17 AM

5 4

Unable to POST after suspend
by Mark Rosenstand 13 Sep '07

13 Sep '07

Hi, I just tried the live CD for CentOS 5.0 on a desktop computer and decided to see if suspend worked. It seems it did, but I'm unable to start the machine again. It's a DIY system with an Asus K8V-X motherboard[1], an AMD Clawhammer 3200+ and 1 GB of Kingston ECC RAM. The system has been perfectly stable despite being utterly abused on a daily basis for almost 3 years. I've tried: - unplug power cord - reset CMOS - remove BIOS battery - remove all RAM When resetting the CMOS, the CPU FAN and hard drives power up, which it has never done before (IIRC). This is the only way I can get anything to power on, there's no reaction whatsoever when I hit the power or reset buttons. Please don't tell me that clicking a button in a GUI menu has broken my favourite testing PC permanently. Any hints would be very appreciated. [1] http://www.asus.com.tw/products.aspx?l1=3&l2=15&l3=68&l4=0&model=1119&model…

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