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CentOS-announce Digest, Vol 43, Issue 10
by centos-announce-request＠centos.org 23 Sep '08

23 Sep '08

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. Re: CentOS 4.7 is released for ia64, s390 and s390x (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Mon, 22 Sep 2008 21:24:16 +0300 From: Pasi Pirhonen <upi(a)centos.fi> Subject: Re: [CentOS-announce] CentOS 4.7 is released for ia64, s390 and s390x To: centos-announce(a)centos.org Message-ID: <20080922182416.GG23179(a)centos.fi> Content-Type: text/plain; charset=us-ascii Hi, On Sat, Sep 13, 2008 at 05:46:22AM -0500, Johnny Hughes wrote: > The CentOS development team is pleased to announce the release of CentOS > 4.7 for i386 and x86_64. > ---- CLIP CLIP CLIP --- All the same announce stuff still except ia64,s390 and s390x should be there (at least synching where ever it does synch from CentOS masters) -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 43, Issue 10 ***********************************************

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RE: [CentOS] RAID / OS Monitoring tools ?
by Joshua Baker-LePain 23 Sep '08

23 Sep '08

On Mon, 22 Sep 2008 at 5:53pm, Fred Kienker wrote >> It's a dell 2900 : >> quad core XEON (with a spare slot for a 2nd quad core chip) >> 8G memory (expandable to 64G) >> 8 hot swap SATA HD slots onboard >> PERC6i RAID controller *snip* >> Now I want to be able to monitor the box, specifically with >> respect to the RAID drives so I'll know if one has gone bad >> and the RAID configuration has failed over to it. Anyone have >> any suggestions for tools to use ? > > You need the Dell OMSA tools. They are easy to install and work great > with CentOS. Google Dell and OMSA to find them. You can add the Dell > repository to yum to make it even easier to install and maintain them. If you're like me and generally hate vendor tools, I believe that Dell's PERC controllers are rebadged LSIs. LSI has a command line tool you can use to monitor them. MegaCli is more than just a bit obtuse, but a little bit of scripting goes a long way. -- Joshua Baker-LePain QB3 Shared Cluster Sysadmin UCSF

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Sendmail and headers
by Bob Hoffman 23 Sep '08

23 Sep '08

Hi all, Hope someone out there has experience with this. I can send, receive, and smtp my mail with my centos server fine and dandy. All the virtual domains headers for from and reply to and such are good. However, there is one field that I cannot change. (centos 5.2, dns, sendmail, virtualhosts all on same server) The ip and hostname of the server is coming up when the ehlo is called from the receiving server (like yahoo.com and gmail)..instantly tagging all mail as spam, but not deleting it. The header on the mails shows this.... Received: from 45.45.01.01 (EHLO server.myserverhostname.com) (45.45.01.01) Where it should have the ip address of the website and the website mail.website.com... I have played with masquerade_envelope, masquerade_as, masquerade_domain, etc...and about 100 different combinations. I have added the websites to etc/hosts in an effort to make that work too. I am assuming it is masquerade that will do it. But lost as to how to proceed. Is there anyone out there hosting some websites who could point me in the right direction. All the books and websites deal with multiple machines and masquerading all domains as the same...and not making them all different. I cannot conclude or solve this. Any help deply appreciated.

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Up2date for 4.7?
by Jason Pyeron 22 Sep '08

22 Sep '08

The mirrors are missing the headers folders which prevents up2date from working. -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

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RHEL RPC Automatic multithreading
by lingu 22 Sep '08

22 Sep '08

Hi all, *I am porting my POSIX multi threaded application from SOLARIS to RHEL. My application uses SUN RPC (with Automatic multi threading option.) In RHEL RPC I Could not find any option for Automatic multi threading. * *Please Help me.* Regards, lingu

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Touch Screen on Centos 5 UPDATE 2
by lingu 22 Sep '08

22 Sep '08

HI, * Any one help me in configuring Touch Screen Monitor on centos 5 update 2.Is there is any special driver or xorg.conf to be tuned for the touch screen to work. I am trying with Touch Screen from 3M-MICROTOUCH Connected to my SAMSUNG CRT MONITOR . * Regards, Lingu * ***<http://www.google.co.in/url?sa=t&source=web&ct=res&cd=8&url=http%3A%2F%2Fww…>

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Problem with booting/grub (?)
by Mark Hull-Richter 22 Sep '08

22 Sep '08

Earlier this evening, I had the interesting experience of shutting down my machine (because of that lp out-of-sync problem, discussed elsewhere), and watching it not come back up. I admit that I changed out one of my DVD writers for another one, but I don't understand how that could have had any effect on this: When I restarted the machine, it came up to the point where it normally shows: "GRUB Loading Stage 2..." Except, it stopped at the "GRUB" and hung - no stage 2, no disk activity, nothing, just hung. One of the changes I made a little while ago was to modify the boot order of my drives. I had been booting off of the hda drive, but now I'm booting from the sda drive. I went through the "grub-install /dev/sda" back then, then fixed the grub.conf because the disk id for the root was wrong (it was showing hd2, but in order to boot, this had to be set to hd0 because grub couldn't find anything on hd2 - weird, 'cuz that's where the /boot and / partitions both live, but I digress). I thought I'd be able to recover from this by booting from hda again, but that didn't work. So I put in my Live CD, booted from that and tried to fix it via grub-install from there - no go. Grub couldn't find /dev/mapper/livecd-rw (which wasn't there, although /dev/mapper/live-rw was - is that a bug in the live cd?) Then I went to my installation DVD, booted up into linux rescue mode (which took a few tries because I forgot to boot with linux rescue noapic), chroot'd to the right /dev and THEN I could finally run grub-install, and finally, the system rebooted from /dev/sda. I'm wondering: 1) What would cause the system not to get to the "Loading stage 2" part but be able to load GRUB? This one is really the key - if I can understand this, I can prevent it from happening again. 2) What's with the live CD not being able to run grub-install properly? (It also would not install using grub - I don't recall the exact error message, but it was something about there not being a stage 1 area on the drive, which makes no sense because it _does_ boot from that drive). 3) Is this the only way to recover from such an error (GRUB, no stage 2, not the lp error), or was there an easier way I missed? My configuration is: OS : CentOS 5.2 (2.6.18-92.1.10 Linux kernel) x86_64 with latest updates Hardware: AMD Athlon 64 x2 4200+ (2 x 2.0GHz), ECS NFORCE4M-A 4GB OCZ DDR2 800MHz (PC6400) /dev/hda Maxtor 160MB PATA UDMA-133 /dev/hdb Maxtor 120MB PATA UDMA-133 /dev/sda Seagate 300GB SATA-150/300 /dev/sdb WD 320GB SATA-150/300 /dev/hdc Pioneer 1810 (DVR-112D) 18x DVD+/-RW/DL /dev/hdd Pioneer 1810 (DVR-112D) 18x DVD+/-RW/DL Thanks. mhr

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Restarting failed processes
by Matty 22 Sep '08

22 Sep '08

We are running a process on a CentOS box, and periodically it dies. Does anyone happen to have any recommendations for a lightweight tool that can be used to monitor processes and restart them if they happen to fail? I looked at monit, but it appears to be a bit much for restarting a process. Thanks for any feedback, - Ryan

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Need help transfering CentOS5 from desktop to laptop
by Robert Arkiletian 22 Sep '08

22 Sep '08

created 2 partitions on laptop (/ and swap) formatted them. mounted both source and target (under /mnt on each machine) rsync -a / from desktop -> laptop (Note: OS on desktop is on sdb5. On laptop it's going to sda1) Now I need to put grub on mbr of laptop boot: linux rescue chroot /mnt/sysimage Here is my problem grub-install /dev/sda The file /boot/grub/stage1 not read correctly. Can anyone determine why I'm getting the above error? I also tried cp -a /usr/share/grub/i386-redhat/* /boot/grub no joy Here is all important info (gathered from linux rescue chroot /mnt/sysimage): -------------------------- /boot/grub/device.map (fd0) /dev/fd0 (hd0) /dev/sda ------------------------------- /etc/fstab /dev/sda1 / ext3 defaults 1 1 devpts /dev/pts devpts gid=5,mode=620 0 0 tmpfs /dev/shm tmpfs defaults 0 0 proc /proc proc defaults 0 0 sysfs /sys sysfs defaults 0 0 /dev/sda2 swap swap defaults 0 0 --------------------------------------- /etc/mtab /dev/sda1 / ext3 rw,defaults 0 0 proc /proc proc rw,defaults 0 0 sysfs /sys sysfs rw,defaults 0 0 /dev/sysfs /sys sysfs rw,defaults 0 0 ----------------------- fdisk -l Disk /dev/sda: 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 9500 76308718+ 83 Linux /dev/sda2 9501 9729 1839442+ 82 Linux swap / Solaris --------------------------- /boot/grub/grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You do not have a /boot partition. This means that # all kernel and initrd paths are relative to /, eg. # root (hd0,0) # kernel /boot/vmlinuz-version ro root=/dev/md0 # initrd /boot/initrd-version.img #boot=/dev/sda1 default=0 timeout=10 splashimage=(hd0,0)/boot/grub/splash.xpm.gz #hiddenmenu title CentOS (2.6.18-92.1.10.el5) root (hd0,0) kernel /boot/vmlinuz-2.6.18-92.1.10.el5 ro root=/dev/sda1 rhgb quiet initrd /boot/initrd-2.6.18-92.1.10.el5.img --------------- mount output (in chroot /mnt/sysimage) /dev/sda1 on / type ext3 (rw,defaults) proc on /proc type proc (rw,defaults) sysfs on /sys type sysfs (rw,defaults) /dev/sysfs on /sys type sysfs (rw,defaults) ----------------- /boot/grub total 328 -rw-r--r-- 1 root root 30 Sep 20 16:42 device.map -rw-r--r-- 1 root root 7584 Sep 20 20:17 e2fs_stage1_5 -rw-r--r-- 1 root root 7456 Sep 20 20:17 fat_stage1_5 -rw-r--r-- 1 root root 6720 Sep 20 20:17 ffs_stage1_5 -rw------- 1 root root 618 Sep 20 20:17 grub.conf -rw------- 1 root root 917 Sep 20 20:16 grub.conf.orig -rw-r--r-- 1 root root 6720 Sep 20 20:17 iso9660_stage1_5 -rw-r--r-- 1 root root 8192 Sep 20 20:17 jfs_stage1_5 lrwxrwxrwx 1 root root 9 Sep 20 18:16 menu.lst -> grub.conf -rw-r--r-- 1 root root 6880 Sep 20 20:17 minix_stage1_5 -rw-r--r-- 1 root root 9248 Sep 20 20:17 reiserfs_stage1_5 -rw-r--r-- 1 root root 5427 Nov 22 2007 splash.xpm.gz -rw-r--r-- 1 root root 512 Sep 20 20:17 stage1 -rw-r--r-- 1 root root 104956 Sep 20 20:17 stage2 -rw-r--r-- 1 root root 104956 May 24 14:37 stage2_eltorito -rw-r--r-- 1 root root 7072 Sep 20 20:17 ufs2_stage1_5 -rw-r--r-- 1 root root 6272 Sep 20 20:17 vstafs_stage1_5 -rw-r--r-- 1 root root 8864 Sep 20 20:17 xfs_stage1_5 -------------------------- /boot total 14720 -rw-r--r-- 1 root root 884809 Jun 14 2007 System.map-2.6.18-8.1.6.el5 -rw-r--r-- 1 root root 912799 Aug 5 05:05 System.map-2.6.18-92.1.10.el5 -rw-r--r-- 1 root root 912900 Jun 25 11:13 System.map-2.6.18-92.1.6.el5 -rw-r--r-- 1 root root 62154 Jun 14 2007 config-2.6.18-8.1.6.el5 -rw-r--r-- 1 root root 65411 Aug 5 05:05 config-2.6.18-92.1.10.el5 -rw-r--r-- 1 root root 65410 Jun 25 11:13 config-2.6.18-92.1.6.el5 drwxr-xr-x 2 root root 4096 Sep 20 20:47 grub -rw------- 1 root root 1523888 Jul 12 19:47 initrd-2.6.18-8.1.6.el5.img -rw------- 1 root root 2412127 Aug 28 14:48 initrd-2.6.18-92.1.10.el5.img -rw------- 1 root root 2412095 Jul 12 17:31 initrd-2.6.18-92.1.6.el5.img -rw-r--r-- 1 root root 80032 Nov 22 2007 message -rw-r--r-- 1 root root 83542 Jun 14 2007 symvers-2.6.18-8.1.6.el5.gz -rw-r--r-- 1 root root 91721 Aug 5 05:05 symvers-2.6.18-92.1.10.el5.gz -rw-r--r-- 1 root root 91734 Jun 25 11:13 symvers-2.6.18-92.1.6.el5.gz -rw-r--r-- 1 root root 1765588 Jun 14 2007 vmlinuz-2.6.18-8.1.6.el5 -rw-r--r-- 1 root root 1805620 Aug 5 05:05 vmlinuz-2.6.18-92.1.10.el5 -rw-r--r-- 1 root root 1805556 Jun 25 11:13 vmlinuz-2.6.18-92.1.6.el5 -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/

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Utility of Centos liveCD
by David Dyer-Bennet 22 Sep '08

22 Sep '08

It appears that the liveCD (CentOS-5.2-i386-LoveCD.iso that I downloaded late last week) does not contain either netcat or tcpdump. Given the frequent use of a livecd for testing and debugging, those would seem to be key tools that should be available. Obviously a LiveCD can't contain everything anybody might ever want, but I'd give those two tools a pretty high priority; certainly much higher than, oh, sound-juicer, say, or openoffice.org-impress. (See me *not* asking for emacs in this space. Well, unless there was actually spare space just sitting there.) -- David Dyer-Bennet, dd-b(a)dd-b.net; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info

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