Re: [CentOS] Adding an 'official' CentOS image to the Amazon EC2 (Electronic Compute Cloud)
I don't know if it's xen under the hood or not (not much experience with this sort of thing). However, 'xen' is mentioned in the following link which I'm following so perhaps it is xen related: http://docs.amazonwebservices.com/AWSEC2/2009-03-01/DeveloperGuide/index.html?ami-via-loopback.html I'm not all the way through this link so I can't vouch for it's utility but it's good thus far. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Ghostscript in 5.3
MHR wrote: > Ever since I updated to 5.3, I have been unable to convert any ps > files to pdfs using the ps2pdf command. I usually get errors like > this: > > [...@mhrichter forms]$ ps2pdf doe81008 > ERROR: /undefinedfilename in (doe81008) Does the file doe81008 exist? If you have a doe81008.ps file that needs to be converted to doe81008.pdf, write: $ ps2pdf doe81008.ps doe81008.pdf Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Mobile: +45 22 12 53 25 Email: m...@crc.dk Homepage: http://www.crc.dk ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Adding an 'official' CentOS image to the Amazon EC2 (Electronic Compute Cloud)
On Wed, May 06, 2009 at 10:11:07PM -0700, Michael A. Peters wrote: > I run CentOS inside a xen at linode - they have a 5.0 image and I > believe a 4.x image. They only have i386, I don't know if a home brewed > x86_64 image would work but it doesn't really matter for me since I'm > only using my instance as a web server (fully updated to 5.3, and > customized with EPEL and my own php build). Linode now do CentOS 5.2, both i386 and x86_64, according to this: http://www.linode.com/faq.cfm Cheers, Gavin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Adding an 'official' CentOS image to the Amazon EC2 (Electronic Compute Cloud)
Jason Aubrey wrote: > I'm starting to use the EC2 cloud (as are others) and noticed that all > the available CentOS images seem to be of dubious origin. > I think it would further the reputation and popularity of CentOS if it > were represented in an official way. > > In case people aren't aware, when you create an AWS (Amazon Web > Services) account there's a management console that shows a list of > available images. Of this list, some are published by Amazon, others > are uploaded anonymously, or you can upload your own. I haven't heard of it before. It looks interesting. Is it basically a xen, or is it it's own environment? I run CentOS inside a xen at linode - they have a 5.0 image and I believe a 4.x image. They only have i386, I don't know if a home brewed x86_64 image would work but it doesn't really matter for me since I'm only using my instance as a web server (fully updated to 5.3, and customized with EPEL and my own php build). Anyway, I suspect xen (or similar) virtual machines are soon to be the standard way non-managed web serving accounts with shell access is done. My previous host - the people were good, I requested some perl / tcl modules and they were installed, but then when they upgraded the OS my site broke and I had to request them again. Then they changed server operating systems (a good move - they were running a bleeding edge distro and they moved to debian stable) the uid/gid of apache changed and they didn't use the old uid/gid breaking apache write permission and I could not run chown myself so I had to file a ticket, etc. - with xen virtual machines, I never have to file a request ticket as I have root so it is better both for me and the hosting company and it is inexpensive enough that it undoubtedly will soon be the standard way anything more than basic web hosting and less than managed web hosting is done. To get to my point, I think it would thus be beneficial for CentOS to produce an official virtual machine image for servers that providers can use and/or users can upload and use on providers that don't offer a CentOS image. It should be a small image with basically just the server install, once running in xen users can yum install whatever they need to their hearts content. I don't know who created the image linode uses, it was missing some stuff a server should have (IE screen and alpine, though alpine I believe is EPEL and not rhel/centos) but was missing very little and was a very complete basic server. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Adding an 'official' CentOS image to the Amazon EC2 (Electronic Compute Cloud)
> Interestingly one is available from Amazon for both Fedora and Windows. I would also like to see a plain vanilla, minimal 64 bit centos image on Amazon AWS. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Adding an 'official' CentOS image to the Amazon EC2 (Electronic Compute Cloud)
I'm starting to use the EC2 cloud (as are others) and noticed that all the available CentOS images seem to be of dubious origin. I think it would further the reputation and popularity of CentOS if it were represented in an official way. In case people aren't aware, when you create an AWS (Amazon Web Services) account there's a management console that shows a list of available images. Of this list, some are published by Amazon, others are uploaded anonymously, or you can upload your own. Given the dubious nature of an anonymous image and a lack of an Amazon image for CentOS, I'm left in the third camp - creating/bundling/uploading my own. Luckily I have the required 64 bit hardware to generate a 64 bit image! Selfishly I'd love to just start up an existing image published by centos.org but one's not available. Interestingly one is available from Amazon for both Fedora and Windows. Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Ghostscript in 5.3
On Wed, 06 May 2009 14:24:56 -0700 MHR wrote: > Anyone else seeing problems like this? No. I use ps2pdf to convert files on Centos 5.3 several dozen times every week and haven't discovered any issues yet. Are you sure your input files are correct? -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Ghostscript in 5.3
Ever since I updated to 5.3, I have been unable to convert any ps files to pdfs using the ps2pdf command. I usually get errors like this: [...@mhrichter forms]$ ps2pdf doe81008 ERROR: /undefinedfilename in (doe81008) Operand stack: Execution stack: %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push Dictionary stack: --dict:1120/1686(ro)(G)-- --dict:0/20(G)-- --dict:102/200(L)-- Current allocation mode is local Last OS error: 2 ESP Ghostscript 815.02: Unrecoverable error, exit code 1 I can print the ps file just fine, but I wanted to save it in pdf format instead of ps format, and that's not working. I can use my VM WinXP machine and Adobe Photoshop Elements to do this, but I prefer not having to fire up the VM for this. Anyone else seeing problems like this? Thanks. mhr ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
Timo Schoeler wrote: > However, one has to clearly distinct JFS from JFS2... (at least in the > AIX world, see wikipedia which states 'In the other operating systems, > such as OS/2 and Linux, only the second generation exists and is called > simply JFS.[3] This should not be confused with JFS in AIX that actually > refers to JFS1.' [0]) > the AIX I worked with, 5.3L, supports both JFS[1] and JFS2... They are very similar structurally, JFS2 just supports larger volumes. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] jigdo images
Ralph Angenendt wrote:
>> I have been looking what Fedora is (or was) doing with Jigdo. It seems
>> to solve some problems and create new ones[1].
>
> Let me look into that.
From the os directory something like this should produce jigdo
files/templates for all associated iso files.
for arch in i386 x86_64
do
rsync -a --delete --delete-excluded \
--exclude 'repodata/' --exclude 'EULA' \
--exclude 'GPL' --exclude 'NOTES/' \
--exclude 'RELEASE-NOTES*' --exclude 'RPM-GPG-KEY*' \
--link-dest=../$arch/ $arch/ ${arch}.jigdo/
for iso in $(find ../isos/i386/ -name '*.iso' -size +10)
do
jigdo-file make-template --force -i $iso \
-j ${iso%.iso}.jigdo -t ${iso%.iso}.template \
--label CentOS=$arch.jigdo/ \
--uri CentOS=http://mirror.centos.org/centos/5/os/$arch/ \
${arch}.jigdo//
done
done
After the files/templates are created they can be moved to a
different/better location as well as updating the Servers section if
desired.
Hope this helps someone,
-Shad
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Re: [CentOS] fs for > 16 TiB partition
John R Pierce wrote: > Ralph Angenendt wrote: >> BTW: ext3 handles "Out of power" corruptions better than xfs does. >> > > > power failure is -not- the only cause of this sort of condition... > noone here has ever had a kernel panic? I had a perfectly good > server panic shortly after a cooling fan had failed combined with > above-normal room temperatures due to somewhat overloaded HVAC. CPU > got hot (but not hot enough to trigger its thermal trip) and get some > kind of cache error that was a fatal bugcheck in the CPU. > > I'm somewhat surprised the Linux community hasn't embraced IBM's JFS... > I know its supported in many distributions (but not RH natively), > however its out there in the "also runs" department. Being rather > conservative by nature, I've only used JFS with AIX due to this, but > found it to be a -very- robust file system with very good all around > performance in a wide range of scenarios (really big files, as well as > really large numbers of small files). Same here (however, I was putting XFS into game first); JFS on AIX is very stable. However, one has to clearly distinct JFS from JFS2... (at least in the AIX world, see wikipedia which states 'In the other operating systems, such as OS/2 and Linux, only the second generation exists and is called simply JFS.[3] This should not be confused with JFS in AIX that actually refers to JFS1.' [0]) HTH, Timo [0] -- http://en.wikipedia.org/wiki/JFS_(file_system) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
Ralph Angenendt wrote: > BTW: ext3 handles "Out of power" corruptions better than xfs does. > power failure is -not- the only cause of this sort of condition... noone here has ever had a kernel panic? I had a perfectly good server panic shortly after a cooling fan had failed combined with above-normal room temperatures due to somewhat overloaded HVAC. CPU got hot (but not hot enough to trigger its thermal trip) and get some kind of cache error that was a fatal bugcheck in the CPU. I'm somewhat surprised the Linux community hasn't embraced IBM's JFS... I know its supported in many distributions (but not RH natively), however its out there in the "also runs" department. Being rather conservative by nature, I've only used JFS with AIX due to this, but found it to be a -very- robust file system with very good all around performance in a wide range of scenarios (really big files, as well as really large numbers of small files). ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SSH problems - command not found (SOLVED)
Hi all, After some search i find that openssh-client was missing. This was all my problems. Is strange because on CentOS 5.2 openssh-client was present but after upgrade to 5.3 (with yum) don't. Thank you all for advices. Geo -- George Alexandru Dudău CORE IT MEX - Grupul de firme MOBEXPERT Network administrator | proiecte web | proiecte speciale Tel : +40 21 2421040-1139 http://www.itmex.ro ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Apache and CF
Hi Rick, I uninstalled CF and re-installed, followed your steps and I am in business baby! Thank you so so so much, I was banging my head against the wall for days. Truly legendary help! This whole list rocks so much. I am learning and not getting criticized for not understanding completely from the beginning. -Jason On May 5, 2009, at 8:57 AM, Rick Barnes wrote: > Jason Todd Slack-Moehrle wrote: >> Hi All, >> >> I have a CentoS 5.3 Xen Instance at Mosso. >> >> I need to run ColdFusion and I have in the past successfully made >> everything work, but not on Linux rather Windows. >> >> I just cannot get Apache and CF talking. I added mod_jrun22, When I >> try to serve a CF file, I am asked to download binary data. I >> added .cfm and .cfml to Directory Index for /var/www/html in >> httpd.conf and nothing still. >> >> I have been trying to get this working for days. > > It is been awhile since I installed CF8. But after running the > installer, start CF8 with: > $ /etc/init.d/coldfusion_8 start > > Be sure to install httpd-devel as the connector script needs apxs. > > $ cd /opt/coldfusion8/runtime/bin > $ ./wsconfig -server coldfusion -ws Apache -bin /usr/sbin/httpd \ > -script /etc/init.d/httpd -dir /etc/httpd/conf -coldfusion -v > > This should install the connector and restart Apache for you (edit as > necessary). Then login to http://localhost/CFIDE/ to complete. > > If apache doesn't restart dpe to permissions, it could be SElinux > $ chcon --reference=/usr/sbin/httpd \ > /opt/coldfusion8/runtime/lib/wsconfig/1/mod_jrun22.so > usually fixes it for Enforcing. If not try Permissive. > > Rick > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Strange problem with filesystem changes reverting on reboot
I've had similar issues with certain brands of "hardware" raid controllers. It was like the mirror didn't sync and it picked a random drive on boot to be the master. So changes happened they just didn't happen to both drives and on reboot the other drive without the changes might/would become master and everything would seem to have vanished. I fixed it by disabling the hardware raid and going with a pure software RAID 1. -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Bart Schaefer Sent: Wednesday, May 06, 2009 3:33 AM To: CentOS mailing list Subject: [CentOS] Strange problem with filesystem changes reverting on reboot Our sysadmin was doing midnight work on moving some hardware to new power outlets. We'd recently done a CentOS 5.3 install on one of those machines and then "yum install" with the centosplus kernel and some rpmforge packages. It had been up and running fine for at least two weeks in that configuration. He sent this message: On reboot the root file system seems to have reverted to the previous startup -- no CentOS plus, no Dag repository info in /etc/yum.repos.d, no xfs, and therefore no /var/lib/mysql. This is at least the second time we've experienced this phenomenon ... suffice to say I am really really suspicious about ext3 now. The previous time this occurred was quite some time ago, probably soon after the CentOS 5.1 release -- we'd written it off as pilot error of some kind. The root is not an LVM, but it is on a software RAID -- my suspicion leans more toward a RAID issue than ext3. Does any of this sound familiar to anyone? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
> -Original Message- > From: centos-boun...@centos.org > [mailto:centos-boun...@centos.org] On Behalf Of Ralph Angenendt > Sent: Wednesday, May 06, 2009 3:55 AM > To: centos@centos.org > Subject: Re: [CentOS] fs for > 16 TiB partition > > Rainer Duffner wrote: > > It's running in a datacenter with UPSs. But once I reboot > it, it it's > > the "fsck-every-n-days" thing. > > > > I don't think it's a good idea to disable that behaviour. > > Hmmm. xfs will not do that, the normal behaviour is not check the file > system on every nth reboot. I normally have turned that off with ext3, > too - if the system goes down unexpectedly, then I normally do one. > > BTW: ext3 handles "Out of power" corruptions better than xfs does. > > Ralph > While the fsck.xfs essentially is nothing more than a /bin/true, do note that if you EVER need to run xfs_check or xfs_repair, you need mre than a fair amount of RAM to properly check the volume. See the following URL for the gory details: http://oss.sgi.com/archives/xfs/2005-08/msg00391.html -- Gary L. Greene, Jr. IT Operations Minerva Networks, Inc. Cell: (650) 704-6633 Phone: (408) 240-1239 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] kghostview and xdg-open. Need to fix problem across whole system
Paul Johnson wrote: > In Centos 5.3, a bad problem has surfaced in user land. We want to use > either Evince or Adobe acroread as the pdf view, but the update of > kdegraphics has somehow screwed up these systems so that the odious, > horrible, awful pdf viewer kghostview is used. It's most likely Acrobat Reader that f#$#$#d up here. It mucks with system copies of mimetypes, etc... My guess is that kdegraphics update simply replaced the muck'd system copies with known good ones. Now, opening pdf's from where is causing problems? Say, opening in nautilus, a webbrowser, what? -- Rex ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Strange problem with filesystem changes reverting on reboot
Bart Schaefer wrote: > Our sysadmin was doing midnight work on moving some hardware to new > power outlets. We'd recently done a CentOS 5.3 install on one of > those machines and then "yum install" with the centosplus kernel and > some rpmforge packages. It had been up and running fine for at least > two weeks in that configuration. He sent this message: > > On reboot the root file system seems to have reverted to the previous > startup -- no CentOS plus, no Dag repository info in /etc/yum.repos.d, > no xfs, and therefore no /var/lib/mysql. This is at least the second > time we've experienced this phenomenon ... suffice to say I am really > really suspicious about ext3 now. > > The previous time this occurred was quite some time ago, probably soon > after the CentOS 5.1 release -- we'd written it off as pilot error of > some kind. The root is not an LVM, but it is on a software RAID -- my > suspicion leans more toward a RAID issue than ext3. > > Does any of this sound familiar to anyone? The only way I can even imagine that happening would be on a RAID1 where the mirrors were not in sync when you made the changes so they only happened on one drive. There are reasonably common circumstances to cause this, so you should always check with 'cat /proc/mdstat' to be sure both mirrors are active. Then, the more unlikely part is that when you rebooted, the previously active mirror was not recognized and the previously idle mirror became active instead. Again, 'cat /proc/mdstat' would have shown the problem - and if that was it, unless the drives had started to sync the wrong direction, the quick fix would have been to simply remove the drive with the old contents, forcing the other one to be used. One possibility here would be that the partition type on the drive that didn't join the raid at reboot was not set to 'FD' for autodetect. And the one that had the old contents might have had some error that caused it to be kicked out of the set earlier - the system does seem to be very sensitive about that where if there is only one drive it will do many more retries. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Strange problem with filesystem changes reverting on reboot
Bart Schaefer пишет:
*snipped content*
>
> On reboot the root file system seems to have reverted to the previous
> startup -- no CentOS plus, no Dag repository info in /etc/yum.repos.d,
> no xfs, and therefore no /var/lib/mysql. This is at least the second
> time we've experienced this phenomenon ... suffice to say I am really
> really suspicious about ext3 now.
>
> The previous time this occurred was quite some time ago, probably soon
> after the CentOS 5.1 release -- we'd written it off as pilot error of
> some kind. The root is not an LVM, but it is on a software RAID -- my
> suspicion leans more toward a RAID issue than ext3.
>
> Does any of this sound familiar to anyone?
Yep, it does.
I run some cluster and its gLite middleware on Scientific Linux 3.x
("flavour" of RHEL 3). Its "/" has been put to software RAID1, the same
thing you described has happened several times. After reboot (not
necessarily the first one) just about everything in file system reverted
to the previous state. Just like after the fresh install, *poof*
Currently I'm using Scientific Linux 4.7 on LVM in the mix with software
RIAD1. So far so good.
I didn't have time to experiment with software RIAD1 after stuff
disappeared. It had to be installed fast and put into operation, so I
just abandoned software RAID, and have no clue what was the reason and
how the issue could be solved.
Will be glaв if someone could shed the lite on this.
Cheers,
Alexei Altuhov.
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Re: [CentOS] fs for > 16 TiB partition
Rainer Duffner wrote: > It's running in a datacenter with UPSs. But once I reboot it, it it's > the "fsck-every-n-days" thing. > > I don't think it's a good idea to disable that behaviour. Hmmm. xfs will not do that, the normal behaviour is not check the file system on every nth reboot. I normally have turned that off with ext3, too - if the system goes down unexpectedly, then I normally do one. BTW: ext3 handles "Out of power" corruptions better than xfs does. Ralph pgpGQrrM4lcjv.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] jigdo images
Marcelo M. Garcia wrote: > Ralph Angenendt wrote: > > Marcelo M. Garcia wrote: >>> Or is there a jigdo project for CentOS? >> >> Want to start one? Join the centos-devel mailing list and make a thought out >> proposal on there >:) > > The reason I'm asking about Jigdo is because some firewall blocks > torrent and some proxies (like here in the office) block file with the > kind of size of a DVD image. After using jigdo to download Debian > images, which uses wget to download small files, I got the impression > that was a good way to solve both problems. As said, if you have some insight into Jigdo and want to help with CentOS supporting that, feel free to step forward. > I have been looking what Fedora is (or was) doing with Jigdo. It seems > to solve some problems and create new ones[1]. Let me look into that. > Maybe now I understand why there is an entry in CentOS wiki on how to > create a DVD from the CDs[2]. That mostly is there because not all mirrors carry the DVDs. There are more doing that now, when that page was written, there were much less mirrors doing that, especially as Apache < 2.2.x could not deliver files larger than 2 GB. Cheers, Ralph pgprjUPh80el6.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Strange problem with filesystem changes reverting on reboot
Our sysadmin was doing midnight work on moving some hardware to new power outlets. We'd recently done a CentOS 5.3 install on one of those machines and then "yum install" with the centosplus kernel and some rpmforge packages. It had been up and running fine for at least two weeks in that configuration. He sent this message: On reboot the root file system seems to have reverted to the previous startup -- no CentOS plus, no Dag repository info in /etc/yum.repos.d, no xfs, and therefore no /var/lib/mysql. This is at least the second time we've experienced this phenomenon ... suffice to say I am really really suspicious about ext3 now. The previous time this occurred was quite some time ago, probably soon after the CentOS 5.1 release -- we'd written it off as pilot error of some kind. The root is not an LVM, but it is on a software RAID -- my suspicion leans more toward a RAID issue than ext3. Does any of this sound familiar to anyone? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SSH problems - command not found
On 06 May 2009, at 10:57 AM, Marcelo M. Garcia wrote: > George Alexandru Dudău wrote: >> Hi All, >> >> I have a strange problem with ssh on CentOS 5.3: >> >> 1. I make a ssh connection from computer X to Y => OK >> 2. When i try to conect from Y to Z i receive a strange message: >> >> -bash: ssh: command not found >> >> (normal and root user) >> >> #which sshd >> /usr/sbin/sshd >> >> The sshd daemon it's on (see nr.1) >> >> So connection to Y it's OK, but from Y to another computer don't. >> Even >> back to X don't work >> >> Any advice? >> >> Thank you! >> >> P.S - sorry for my bad english >> ___ >> CentOS mailing list >> CentOS@centos.org >> http://lists.centos.org/mailman/listinfo/centos > Hi > > I also think you have some packages missing. In my CentOS-5.3, I have > the following packages: > # rpm -qa | grep ssh: > openssh-4.3p2-29.el5 > openssh-clients-4.3p2-29.el5 > openssh-server-4.3p2-29.el5 > openssh-askpass-4.3p2-29.el5 > > Regards > > mg. SSH client is at /usr/bin/ssh it seems there is a problem with your $PATH if /usr/bin is not in the PATH. > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] jigdo images
Ralph Angenendt wrote: > Marcelo M. Garcia wrote: >> Hi >> >> Is there a jigdo image available for CentOS-5.3? > > No. Several people have looked into it, but either haven't understood jigdo or > lost interest in it. > >> Or is there a jigdo project for CentOS? > > Want to start one? Join the centos-devel mailing list and make a thought out > proposal on there >:) > > Cheers, > > Ralph - who hasn't really understood jigdo and then lost interest =:) > Hi Raplh The reason I'm asking about Jigdo is because some firewall blocks torrent and some proxies (like here in the office) block file with the kind of size of a DVD image. After using jigdo to download Debian images, which uses wget to download small files, I got the impression that was a good way to solve both problems. I have been looking what Fedora is (or was) doing with Jigdo. It seems to solve some problems and create new ones[1]. Maybe now I understand why there is an entry in CentOS wiki on how to create a DVD from the CDs[2]. Regards mg. [1] http://fedoraproject.org/wiki/Features/JigdoRelease [2] http://wiki.centos.org/TipsAndTricks/CDtoDVDMedia ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 tthus Rainer Duffner spake: | Adrian Sevcenco schrieb: |> Rainer Duffner wrote: |> |>> Adrian Sevcenco schrieb: |>> |>>> Hi, |>>> What would you recommend as an FS for an partition greater than 16 TiB? |>>> This is for an production server (that is, no ext4 recommendations |>>> please :) ) |>>> What experiences did you had with your preferred FS ? (good and not so |>>> good points) |>>> |>>> Thank you, |>>> Adrian |>>> |>>> |>> Does anybody actually run such a thing on Linux? |>> |> We will .. | | That's not what I was asking ;-) | | |> 2 X RAID6 each with 12 drives (24 drives machine) |> with 2 TB drives .. that is 20 TBs each volume |> |> |>> How long does a FSCK take once it's 80% populated? |>> |> i strongly hope that i will never know :)) |> | | It will fsck every n'th reboot anyway, or after so-and-so many days | without fsck, after a reboot. | |> it have 2 redundant PSU each on different ups ... |> |> |>> How much RAM does that need? |>> |> minimal .. is an storage only machine so 4 GB is enough as the |> connection is only GigE |> |> | | I asked about the FSCK. | Usually, it requires some RAM, too. | | |>> The FSCK on my Virtuozzo-partition takes long enough - and it's only 500 |>> GB or so. |>> |> Even for home its efficient to have an ups for each machine.. |> | | | It's running in a datacenter with UPSs. But once I reboot it, it it's | the "fsck-every-n-days" thing. | | I don't think it's a good idea to disable that behaviour. | | | | | Rainer To shorten the fsck discussion with XFS (quoting the man page): fsck.xfs(8) NAME ~ fsck.xfs - do nothing, successfully SYNOPSIS ~ fsck.xfs [ filesys ... ] DESCRIPTION ~ fsck.xfs is called by the generic Linux fsck(8) program at startup to ~ check and repair an XFS filesystem. XFS is a journaling filesystem and ~ performs recovery at mount(8) time if necessary, so fsck.xfs simply ~ exits with a zero exit status. ~ If you wish to check the consistency of an XFS filesystem, or repair a ~ damaged or corrupt XFS filesystem, see xfs_check(8) and xfs_repair(8). FILES ~ /etc/fstab. SEE ALSO ~ fsck(8), fstab(5), xfs(5), xfs_check(8), xfs_repair(8). See also: http://en.wikipedia.org/wiki/XFS HTH, Timo -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org iD8DBQFKAVoDfg746kcGBOwRAkCcAJ0T+g2rJbPJEH9DpPFPqAjJFhDTTACfS5vu sIPqPMEZ56MBL9kMaV9HkiA= =iWo6 -END PGP SIGNATURE- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
Adrian Sevcenco schrieb: > Rainer Duffner wrote: > >> Adrian Sevcenco schrieb: >> >>> Hi, >>> What would you recommend as an FS for an partition greater than 16 TiB? >>> This is for an production server (that is, no ext4 recommendations >>> please :) ) >>> What experiences did you had with your preferred FS ? (good and not so >>> good points) >>> >>> Thank you, >>> Adrian >>> >>> >> Does anybody actually run such a thing on Linux? >> > We will .. That's not what I was asking ;-) > 2 X RAID6 each with 12 drives (24 drives machine) > with 2 TB drives .. that is 20 TBs each volume > > >> How long does a FSCK take once it's 80% populated? >> > i strongly hope that i will never know :)) > It will fsck every n'th reboot anyway, or after so-and-so many days without fsck, after a reboot. > it have 2 redundant PSU each on different ups ... > > >> How much RAM does that need? >> > minimal .. is an storage only machine so 4 GB is enough as the > connection is only GigE > > I asked about the FSCK. Usually, it requires some RAM, too. >> The FSCK on my Virtuozzo-partition takes long enough - and it's only 500 >> GB or so. >> > Even for home its efficient to have an ups for each machine.. > It's running in a datacenter with UPSs. But once I reboot it, it it's the "fsck-every-n-days" thing. I don't think it's a good idea to disable that behaviour. Rainer ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
On Wed, May 6, 2009 at 11:27 AM, Bent Terp wrote: > Lesson learned: don't use xfs_grow unless you're in the general > vicinity of the server ;-) Correction: the command is xfs_growfs not xfs_grow /B ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
On Wed, May 6, 2009 at 10:48 AM, Adrian Sevcenco wrote: > Hi, > What would you recommend as an FS for an partition greater than 16 TiB? > This is for an production server (that is, no ext4 recommendations > please :) ) > What experiences did you had with your preferred FS ? (good and not so > good points) We've got a 110 TB xfs system in production based on a logical volume striped over 9 boxes of SATA disk, works like a charm with great throughput as we stripe over 3 controllers :-) Only whoopsie in 18+ months was when we recently added 3 more disk boxes and I grew the filesystem. First attempt xfs_grow only added a fraction of the available space. Second attempt gave a kernel panic. Reboot and everything was fine with all space available. Lesson learned: don't use xfs_grow unless you're in the general vicinity of the server ;-) regards, Bent ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
Rainer Duffner wrote: > Adrian Sevcenco schrieb: >> Hi, >> What would you recommend as an FS for an partition greater than 16 TiB? >> This is for an production server (that is, no ext4 recommendations >> please :) ) >> What experiences did you had with your preferred FS ? (good and not so >> good points) >> >> Thank you, >> Adrian >> > > > Does anybody actually run such a thing on Linux? We will .. 2 X RAID6 each with 12 drives (24 drives machine) with 2 TB drives .. that is 20 TBs each volume > How long does a FSCK take once it's 80% populated? i strongly hope that i will never know :)) it have 2 redundant PSU each on different ups ... > How much RAM does that need? minimal .. is an storage only machine so 4 GB is enough as the connection is only GigE > The FSCK on my Virtuozzo-partition takes long enough - and it's only 500 > GB or so. Even for home its efficient to have an ups for each machine.. Adrian smime.p7s Description: S/MIME Cryptographic Signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
Adrian Sevcenco schrieb: > Hi, > What would you recommend as an FS for an partition greater than 16 TiB? > This is for an production server (that is, no ext4 recommendations > please :) ) > What experiences did you had with your preferred FS ? (good and not so > good points) > > Thank you, > Adrian > Does anybody actually run such a thing on Linux? How long does a FSCK take once it's 80% populated? How much RAM does that need? The FSCK on my Virtuozzo-partition takes long enough - and it's only 500 GB or so. Rainer ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SSH problems - command not found
George Alexandru Dudău wrote: > Hi All, > > I have a strange problem with ssh on CentOS 5.3: > > 1. I make a ssh connection from computer X to Y => OK > 2. When i try to conect from Y to Z i receive a strange message: > > -bash: ssh: command not found > > (normal and root user) > > #which sshd > /usr/sbin/sshd > > The sshd daemon it's on (see nr.1) > > So connection to Y it's OK, but from Y to another computer don't. Even > back to X don't work > > Any advice? > > Thank you! > > P.S - sorry for my bad english > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos Hi I also think you have some packages missing. In my CentOS-5.3, I have the following packages: # rpm -qa | grep ssh: openssh-4.3p2-29.el5 openssh-clients-4.3p2-29.el5 openssh-server-4.3p2-29.el5 openssh-askpass-4.3p2-29.el5 Regards mg. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
2009/5/6 Timo Schoeler : > Hi, > >> Hi, >> What would you recommend as an FS for an partition greater than 16 TiB? >> This is for an production server (that is, no ext4 recommendations >> please :) ) >> What experiences did you had with your preferred FS ? (good and not so >> good points) >> >> Thank you, >> Adrian > > I personally would go XFS. Made the very best experiences of any > filesystems I ever used (well, it was XFS on IRIX). > > Timo Same here. Make sure to use an UPS though. Laurent. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] fs for > 16 TiB partition
Hi, > Hi, > What would you recommend as an FS for an partition greater than 16 TiB? > This is for an production server (that is, no ext4 recommendations > please :) ) > What experiences did you had with your preferred FS ? (good and not so > good points) > > Thank you, > Adrian I personally would go XFS. Made the very best experiences of any filesystems I ever used (well, it was XFS on IRIX). Timo ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] fs for > 16 TiB partition
Hi, What would you recommend as an FS for an partition greater than 16 TiB? This is for an production server (that is, no ext4 recommendations please :) ) What experiences did you had with your preferred FS ? (good and not so good points) Thank you, Adrian smime.p7s Description: S/MIME Cryptographic Signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SSH problems - command not found
sudo find / -name "ssh" See if you can find ssh anywhere on the system? -BEGIN GEEK CODE BLOCK- Version: 3.1 GIT/MU/U dpu s: a--> C++>$ U+> L++> B-> P+> E?> W+++>$ N K W++ O M++>$ V- PS+++ PE++ Y+ PGP t 5 X+ R- tv+ b+> DI D+++ G+ e(+) h--(++) r++ z++ --END GEEK CODE BLOCK-- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SSH problems - command not found
Hi George, i guess it could be the iptables ( blocking outbound traffic) try iptables -F(flush) and then try ssh to other machine If the above doesnt work try looking at your selinux -- Harry George Alexandru Dudău wrote: > Hi All, > > I have a strange problem with ssh on CentOS 5.3: > > 1. I make a ssh connection from computer X to Y => OK > 2. When i try to conect from Y to Z i receive a strange message: > > -bash: ssh: command not found > > (normal and root user) > > #which sshd > /usr/sbin/sshd > > The sshd daemon it's on (see nr.1) > > So connection to Y it's OK, but from Y to another computer don't. Even > back to X don't work > > Any advice? > > Thank you! > > P.S - sorry for my bad english > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SSH problems - command not found
George Alexandru DudÄu wrote: > So connection to Y it's OK, but from Y to another computer don't. Even > back to X don't work Sounds like you don't have the openssh client package installed. rpm -q -f `which ssh` nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] SSH problems - command not found
Hi All, I have a strange problem with ssh on CentOS 5.3: 1. I make a ssh connection from computer X to Y => OK 2. When i try to conect from Y to Z i receive a strange message: -bash: ssh: command not found (normal and root user) #which sshd /usr/sbin/sshd The sshd daemon it's on (see nr.1) So connection to Y it's OK, but from Y to another computer don't. Even back to X don't work Any advice? Thank you! P.S - sorry for my bad english ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
