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RE: [CentOS] Problems with building a complete kernel
by Mark Hull-Richter 26 Jan '07

26 Jan '07

My bad - I rechecked and it is the correct source. AND I found that the make install (with make modules_install first) takes care of GRUB for me. BUT: Now I can't boot because the installed Centos 4.4 was from the distribution DVD, and it depends on the lvm to load. My build doesn't know about the lvm and it refuses to boot - it dies coming up with an error from lvm, followed by two more where it can't find a file system, then the kernel panics (and hangs the machine). How do I get around lvm? Thanks (again). -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Will McDonald Sent: Thursday, January 25, 2007 4:21 PM To: CentOS mailing list Subject: Re: [CentOS] Problems with building a complete kernel On 26/01/07, Mark Hull-Richter <mhull-richter(a)datallegro.com> wrote: > Thanks - I'm still working on it. > > Does anyone know where there is a clean, working source for Centos > 2.6.9-42.0.3 (supposedly the 4.4 final)? I'm pretty sure the one I have > is NOT the right one.... The source tarball should be included in the SRPM for your kernel, I'd imagine. http://mirror.centos.org/centos-4/4.4/updates/SRPMS/kernel-2.6.9-42.0.3. EL.src.rpm Once installed (if installed as root) it'll be in /usr/src/redhat/SOURCES, otherwise it'll be in wherever your .rpmmacros file points. Will. _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Setting up HP OfficeJet 5610 fax on CentOS 4.4 shared
by Rakhesh Sasidharan 26 Jan '07

26 Jan '07

Hi there, As the subject says, I'm trying to set up an HP OfficeJet 5610 on CentOS 4.4 for shared use across my machines. I've managed to get printing (through HPLIP/ CUPS/ SAMBA) and scanning (through SANE) shared; but I'm unable to get fax shared working. Is it possible to do that? The instructions on the HPLIP page talk about installing the 5610 as a fax device and then faxing using hp-sendfax and hp-toolbox etc. But what I want to do is to share the fax device itself on the network -- like the printer and scanner -- any ideas on how I can achieve that? Thanks, Rakhesh ps. I am using CentOS-server. No GUI etc. So would prefer CLI oriented solutions. Thanks.

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oom killer: gfp=mask=0xd1 - bug w/ EM64T?
by Lance Lierheimer 26 Jan '07

26 Jan '07

Hi - Running into the error below when copying over large files via ssh. This occurs even when I have vm.overcommit_memory=2 set in /etc/sysctl.conf. The research I've done indicates that this is a bio-uses-GFP_DMA bug with EM64T. I'm running CentOS 4.4 with the 2.6.9-42.0.3.ELsmp x86_64 kernel on the following hardware: 2 x Intel Xeon CPU 5148 @ 2.33GHz Supermicro X7DB8 motherboard Is there a patch or workaround for this, or some parameter that I can pass to the kernel at boot? Any help would be appreciated. thanks, Lance ***** oom-killer: gfp_mask=0xd1 Mem-info Node 0 DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 cpu 0 cold: low 0, high 2, batch 1 cpu 1 hot: low 2, high 6, batch 1 cpu 1 cold: low 0, high 2, batch 1 cpu 2 hot: low 2, high 6, batch 1 cpu 2 cold: low 0, high 2, batch 1 cpu 3 hot: low 2, high 6, batch 1 cpu 3 cold: low 0, high 2, batch 1 Node 0 Normal per-cpu: cpu 0 hot: low 32, high 96, batch 16 cpu 0 cold: low 0, high 32, batch 16 cpu 1 hot: low 32, high 96, batch 16 cpu 1 cold: low 0, high 32, batch 16 cpu 2 hot: low 32, high 96, batch 16 cpu 2 cold: low 0, high 32, batch 16 cpu 3 hot: low 32, high 96, batch 16 cpu 3 cold: low 0, high 32, batch 16 Node 0 HighMem per-cpu: empty Free pages: 16203544kB (0kB HighMem) Active:6029 inactive:29822 dirty:25578 writeback:1 unstable:0 free:4050886 slab:5003 mapped:4627 pagetables:272 Node 0 DMA free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:16384kB pages_scanned:2 all_unreclaimable? yes protections[]: 0 0 0 Node 0 Normal free:16203608kB min:4216kB low:8432kB high:12648kB active:24116kB inactive:119288kB present:17809408kB pages_scanned:0 all_unreclaimable? no protections[]: 0 0 0 Node 0 HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no protections[]: 0 0 0 Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 Normal: 1412*4kB 611*8kB 189*16kB 219*32kB 106*64kB 15*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3948*4096kB = 16203608kB Node 0 HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap: 16450552kB 4456448 pages of RAM 353637 reserved pages 97288 pages shared 0 pages swap cached (etc... oom killer kills off other processes) -- Lance Lierheimer Sr. Systems Engineer Greenplum www.greenplum.com lance at greenplum.com

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RE: [CentOS] Limiting files when using rsync
by Mark Schoonover 26 Jan '07

26 Jan '07

Todd Cary wrote: > Mark - > > Thanks! That did it. > > > /usr/bin/rsync -av --exclude=".*" -e ssh /home/ 192.168.0.22:/home/ > My next step will be to brush the dust off of my Perl book and write > a crontab script to backup nightly. > > Question: I may not be using the term "backup" absolutely correctly. > The destination server is a "standby" server. This is if the source > server fails, all I have to do is change the router to point to the > standby server. These are in a home office and I do not consider > myself a system administrator; just someone who knows enough to keep > the server running (it's main task is FTPing). Do you have any > suggestions about using rsync as I am doing? > Todd, If all you want to do is mirror the main server to the backup server, your command is almost correct. You'll want to add --delete on the commandline. This will cause rsync to remove any files from the destination before sending them from the source. This will create a mirror of your main server to your backup server. You don't need to go to all the overhead of running Perl to crontab this up. Just drop your rsync command into a file, make it executable then add it to root's crontab file. It'll run just fine after that. One other thing nonrsync related - top posting, and sending HTML to the list. Makes it hard to respond to your questions. Just remember to use text only, and post responses at the bottom of your emails. Things just tread much easier from top to bottom. Thanks! Mark Schoonover IS Manager American Geotechnical - California, Nevada and Arizona V-> 858.450.4040 F-> 714.685.3909 C-> 858.472.3816 * software development * systems administration * networking * security *

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RE: [CentOS] Limiting files when using rsync
by Mark Schoonover 26 Jan '07

26 Jan '07

Todd Cary wrote: > Mark Schoonover wrote: >> Todd Cary wrote: >> >>> Mark - >>> >>> Thanks! That did it. >>> >>> >>> /usr/bin/rsync -av --exclude=".*" -e ssh /home/ 192.168.0.22:/home/ >>> My next step will be to brush the dust off of my Perl book and write >>> a crontab script to backup nightly. >>> >>> Question: I may not be using the term "backup" absolutely correctly. >>> The destination server is a "standby" server. This is if the source >>> server fails, all I have to do is change the router to point to the >>> standby server. These are in a home office and I do not consider >>> myself a system administrator; just someone who knows enough to keep >>> the server running (it's main task is FTPing). Do you have any >>> suggestions about using rsync as I am doing? >>> >>> >> >> Todd, >> >> If all you want to do is mirror the main server to the backup >> server, your command is almost correct. You'll want to add --delete >> on the commandline. This will cause rsync to remove any files from >> the destination before sending them from the source. This will >> create a mirror of your main server to your backup server. >> >> You don't need to go to all the overhead of running Perl to crontab >> this up. Just drop your rsync command into a file, make it >> executable then add it to root's crontab file. It'll run just fine >> after that. >> >> One other thing nonrsync related - top posting, and sending HTML to >> the list. Makes it hard to respond to your questions. Just remember >> to use text only, and post responses at the bottom of your emails. >> Things just tread much easier from top to bottom. >> >> Thanks! >> >> Mark Schoonover >> IS Manager >> American Geotechnical - California, Nevada and Arizona >> V-> 858.450.4040 F-> 714.685.3909 C-> 858.472.3816 >> * software development * systems administration * networking * >> security * >> >> >> >> >> >> _______________________________________________ >> CentOS mailing list >> CentOS(a)centos.org >> http://lists.centos.org/mailman/listinfo/centos >> >> >> > Mark - > > Yes, the bottom post vs. the top post is a continual problem for me > since my business accounts ask for top post (almost demand it) and > Thunderbird does not have an option for each email address as it does > for email mode. I'll try to remember to swap it back and forth. > > Concerning the --delete switch, if I use it, will files created by a > user on the destination server remain? Though it is a standby server, > there are times when it is used by staff. > > The main reason I will use Perl is to create the backup files of the > Interbase databases and then scp (or rsync) them to the other server. > > Many thanks for the tips.... > > Todd Todd, I understand about top posting issues. I don't do it all the time, especially with coworkers and friends. Since we're the only two in the conversation, we know the history of the email. To someone that's just started reading our thread, everything will be in order, all they have to do is to read from top to bottom. No, the --delete switch will only delete files from the destination server. Now, if the destination server is also having files changed, then rsync is not for you. Rsync is a one way transfer of files, you can't do bidirectional rsync. For that you'll have to use Unison instead. I do the exact same thing with my Mysql servers. I used mysqldump to backup my databases to a directory. Then, using rsync, I copy them all to an offsite backup server. The --excludes option, also has --includes, or better yet, --include-files=filestorsync.txt, then put /home/ /interbasebackups, in that .txt file, one per line. That will tell rsync to grab everything in /home, and /interbasebackups. No need for Perl in this situation. You've really got all the info on the basics of rsync. Now, it's a matter of just creating test scripts, reading the man page, etc. Thanks! Mark Schoonover IS Manager American Geotechnical V: 858-450-4040 - F: 714-685-3909 - C: 858-472-3816 "Stop the Earth!! I want off!!"

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RE: [CentOS] Limiting files when using rsync
by Mark Schoonover 26 Jan '07

26 Jan '07

Peter Serwe wrote: > Todd Cary wrote: >> Mark - >> >> Thanks! That did it. >> >> /usr/bin/rsync -av --exclude=".*" -e ssh /home/ 192.168.0.22:/home/ >> My next step will be to brush the dust off of my Perl book and write >> a crontab script to backup nightly. >> >> Question: I may not be using the term "backup" absolutely correctly. >> The destination server is a "standby" server. This is if the source >> server fails, all I have to do is change the router to point to the >> standby server. These are in a home office and I do not consider >> myself a system administrator; just someone who knows enough to keep >> the server running (it's main task is FTPing). Do you have any >> suggestions about using rsync as I am doing? > I'm confused *what* in the world would make you want to write perl > for this purpose when two lines of bash would serve the purpose > (admirably). > > #!/bin/bash > /usr/bin/rsync -av --exclude=".*" -e ssh /home/ 192.168.0.22:/home/ > > If for some reason, you wanted to do something sexier or more dynamic > in terms of the source/destination, that would add 4 more lines to > make it something like: > > #!/bin/bash > for dir in 'ls -1 /home/' > do > /usr/bin/rsync -av --exclude=".*" -e ssh /home/$dir/ > 192.168.0.22:/home/$dir/ > done > > You can even nest loops and iterate multiple parameters. > > Peter Peter, Was this just an example of using a for loop?? I wouldn't do this with rsync, it can handle recursive directories on its own. Putting it in a for loop, then calling rsync over and over again, will take a huge performance hit because rsync will have to build the file list for each directory in /home. Just point it to /home, and all will be fine. Thanks! Mark Schoonover IS Manager American Geotechnical V: 858-450-4040 - F: 714-685-3909 - C: 858-472-3816 "Stop the Earth!! I want off!!"

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Re-running CPAN setup
by Erick Perez 26 Jan '07

26 Jan '07

I just ran for the first time perl -MCPAN -e shell and answered all the question, but i made a mistake and selected an incorrect mirror. How can I rerun this perl setup? -- ------------------------------------------------------------ Erick Perez Panama Sistemas Integradores de Telefonia IP y Soluciones Para Centros de Datos Panama, Republica de Panama Cel Panama. +(507) 6694-4780 ------------------------------------------------------------

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RE: [CentOS] Limiting files when using rsync
by Mark Schoonover 26 Jan '07

26 Jan '07

Todd Cary wrote: > I use the following command to sync the home directory on the two > computers, however I would like not to send the "dot" files e.g. > ".ssh". Can that be done, and if so, how would I construct the > command line? > > /usr/bin/rsync -av -e ssh /home/ 192.168.0.22:/home/ > > Many thanks.... > > Todd Todd, I'm pretty sure you need to --exclude '.*' on the command line, buh I usually put all my excludes in a file and --exclude-from=rsync.excludes. Thanks! Mark Schoonover IS Manager American Geotechnical V: 858-450-4040 - F: 714-685-3909 - C: 858-472-3816 "Stop the Earth!! I want off!!"

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How to whitellist and blacklist domains in amavisd-new.
by Indunil Jayasooriya 26 Jan '07

26 Jan '07

Hi, I want to know how to whilelist or blacklist domains in amavisd-new. By now, I have already added a whiltelist and a blacklist with email addresses in following way. in amavisd.conf file , belwo two lines @whitelist_sender_maps = read_hash("$MYHOME/white.lst"); @blacklist_sender_maps = read_hash("$MYHOME/black.lst"); then , I did below two , touch /var/amavis/white.lst touch /var/amavis/black.lst Then I added email addresse per line in these two files. Now I need to know how to whiltelist or blacklist entire domains. (NOT email adddressess) Pls help . -- Thank you Indunil Jayasooriya

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Squid 2.6 RPM
by Matt 26 Jan '07

26 Jan '07

CentOS 4.4 includes squid-2.5.STABLE6-3.4E.12. Can anyone tell me where to find a 2.6 rpm? Matt

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