Discuss July 2011

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315 participants
287 discussions

CentOS6 on EC2
by Richard Shade 25 Jul '11

25 Jul '11

Anyone successfully got CentOS6 running on EC2. We have bundled a pvgrub image but get to "Initialising Xen virtual ethernet driver." and the system stops outputting? -- Thanks, Richard Shade Integration Engineer RightScale - http://www.rightscale.com/ phone: 8055004164x1018

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nfsv4 and kerberos - fails to mount
by Rob Kampen 25 Jul '11

25 Jul '11

I have been trying all sorts of things to get this working. nfsv4 works fine if I just use the nfs-v3 form of export i.e. /nfs4exports 192.168.230.237/24(ro,fsid=0,sync,insecure,no_root_squash,no_subtree_check,squash_uids=0-99) /nfs4exports/NDG 192.168.230.237/24(rw,insecure,no_subtree_check,nohide,sync,no_root_squash,squash_uids=0-99) but this is inherently open to all on this machine. so then using this recipe http://www.techrepublic.com/blog/opensource/kerberos-authentication-with-nf… and many others that hours of google foo shows change exports to /nfs4exports gss/krb5(ro,fsid=0,sync,insecure,no_root_squash,no_subtree_check,squash_uids=0-99) /nfs4exports/NDG gss/krb5(rw,insecure,no_subtree_check,nohide,sync,no_root_squash,squash_uids=0-99) now from the client I can see [rkampen@timsws ~]$ showmount -e example.com Export list for example.com: /nfs4exports gss/krb5 /nfs4exports/NDG gss/krb5 but [rkampen@timsws /]$ sudo mount -t nfs4 -o sec=krb5 ndgonline.net:/ /NDG/ mount.nfs4: access denied by server while mounting ndgonline.net:/ and [rkampen@timsws /]$ sudo mount -t nfs4 -o sec=krb5 ndgonline.net:/NDG /NDG/ mount.nfs4: access denied by server while mounting ndgonline.net:/NDG And I cannot find any log entries relating to the kerberos KDC or on the nfs server - two different machines. I have set up all the principals in the KDC and used kadmin/ktadd to load into the client and the server /etc/krb5.keytab as per the above url. How and where do I get logging to occur so I can find out the missing piece in my kerberos setup? Any help or directions appreciated. TIA

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what really starts x11
by Jerry Geis 25 Jul '11

25 Jul '11

my inittab file has 5 for starting x on centos 6 however x is not starting what do i look for as why x is not starting ? it doesnt even attempt to start that i can tell no screen flashing or anything jerry

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Package: virt-goodies
by Timothy Kesten 25 Jul '11

25 Jul '11

Hi Folks, is here someone who knows where to get the package "virt-goodies" for CentOS6 64bit? I'd like to convert VMWare-images to KVM. Thx Timothy

1 1

Updated Kernel sensors modules
by Dejan 25 Jul '11

25 Jul '11

Last week I upgraded my box to CentOS 6 and I'm very impressed so far with it. The only small issue so far is that it doesn't seem to recognize the new Sandy Bridge Core i5 CPU that I have and you can't monitor its temperature. I recompiled the latest coretemp module from the latest 2.6.39 kernel and the latest lm_sensors version however this still wasn't enough as the new module loads fine but still reports that there were no sensors found. I booted a Fedora 15 install and it recognized the CPUs and started reporting the temperatures so obviously the modules are there but maybe the coretemp is not the only thing that is needed. Does anyone know what else is needed for the sensors to be recognized? Thanks, Deyan

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lots of small files in a folder on Linux centos
by yonatan pingle 25 Jul '11

25 Jul '11

Hello, I have a rather annoying issue on going with one of my centos virtual servers. the server hosts a website using apache and mysql ,there are three persons involved with keeping the site up and running. and i am his root due to the fact he does not know anything with about Linux. there is an php/sql coder , and the site owner which only knows to use the CMS and upload new articles to the website. the coder and the site owner work together for a long time already , i am their new admin ( as the last one was a major ISP which failed to host the site properly ). lately the server is under-preforming and load averages are high, mysql service keeps crashing and the server is hitting max memory usage ( so i added ram .. ) , after looking into the website folders, i have found one folder which from my point of view is one of the causes for the server loads. (sorry for piping ls ). uploads]# ls | wc -l 3123 I have talked with the site owner, which in turn showed this to the coder ,now he throws the ball back claiming: it has nothing to do with server performance. the folder is full of images, about 40K each, and i have good reason to believe this is the problem, as this is not the first time i see that a folder which includes a large amount of files causes a server to under-perform. the coder is not tech savvy as one might expect, so it's really hard for me to explain the issue of having lots of files in one folder to the site owner or to the coder. the hardware is a decent machine dual E5530 24RAM with six hard drives in raid. the virtual server has 2GB of ram and it's own CPU share ( 4 cores 8 threads ). the coder is arguing with facts sadly to say he has the site owner on "his side". long story short, how should i explain in the most simple way in plain english that having that much files in a folder will cause a server to work slower? pros vs cons of having a large amount of small files in the same folder on Linux Centos? -- Best Regards, Yonatan Pingle RHCT | RHCSA | CCNA1

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Centos 6.0 Live CD Now Available
by Always Learning 25 Jul '11

25 Jul '11

Detailed Release Notes are available at http://wiki.centos.org/Manuals/ReleaseNotes/CentOSLiveCD6.0 "Special thanks to Fabian Arrotin for taking up the LiveCD and LiveDVD efforts, and to everyone on the QA team who worked through the issues and helped build, test and release these images." Thank you. Well done Guys. Centos is Great. -- With best regards, Paul. England, EU.

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/dev/dsp
by NfoCipher 25 Jul '11

25 Jul '11

Hey guys, If I needed to get /dev/dsp back on centos 6, how would I go about doing that. Note, I've already uninstalled pulseaudio. I've also edited /etc/modprobe.d/dist-oss.conf and uncommented: /sbin/modprobe --ignore-install snd-pcm && /sbin/modprobe snd-pcm-oss && /sbin/modprobe snd-seq-device && /sbin/modprobe snd-seq-oss But I'm getting: FATAL: Module snd_pcm_oss not found. Suggestions?

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CentOS-announce Digest, Vol 77, Issue 7
by centos-announce-request＠centos.org 25 Jul '11

25 Jul '11

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. Release for CentOS-6.0 LiveCD i386 and x86_64 (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Mon, 25 Jul 2011 14:48:10 +0100 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] Release for CentOS-6.0 LiveCD i386 and x86_64 To: CentOS Announcements List <centos-announce(a)centos.org> Message-ID: <4E2D741A.2090604(a)centos.org> Content-Type: text/plain; charset=windows-1252 We are pleased to announce the immediate availability of CentOS-6.0 LiveCD for i386 and x86_64 architectures. Detailed Release Notes are available at http://wiki.centos.org/Manuals/ReleaseNotes/CentOSLiveCD6.0 +++++++++++++++++++++++ Overview The CentOS-6.0 LiveCD is meant to be a Linux environment suited to be run directly from either CD media or USB storage devices. It does not need any persistent storage on a machine, which also makes it a suitable recovery environment. Due to space constraints, it was not possible to include all the traditional desktop applications on the LiveCD. You can though enjoy a Gnome basic desktop, view and modify pictures with gthumb and the Gimp, browsing the web with Firefox, send emails with Thunderbird and connect to your favorite Instant Messaging network with Pidgin +++++++++++++++++++++++ Download SHA256SUMs : CentOS-6.0-x86_64-LiveCD.iso: f7239593e425ea4c26c5292e23b5e284e64779f54af395486cf1fd4b3e6c7f3b CentOS-6.0-i386-LiveCD.iso: c4e09a2152a8e1b17dc6704eb8d7455c13f615e40432cb0b4b07f65850948628 The CentOS-6.0 LiveCD is released to all external mirrors and available for download now. List of mirrors is available at these urls : http://isoredirect.centos.org/centos/6/isos/i386/ http://isoredirect.centos.org/centos/6/isos/x86_64/ There are no torrent files for these LiveCD images since the overall size of download is small enough that it can be easily downloaded via http and ftp mirrors. Given the very large and diverse CentOS Mirror network, we expect most people to get fairly good download rates for these iso images. Once you download the images, its important to verify contents using the sha256sum utility, against the published sums here. +++++++++++++++++++++++ Notes You can now install the Live environment to your hard disk (which wasn?t possible with the 5.x Live medias). Please note that you need more that 512Mb of ram to be able to use that ?install to hard drive? feature (If you have less than 512Mb of ram, you can install to disk but in text-mode, meaning that instead of clicking on the desktop icon, you have to launch a gnome-terminal and launch the ?liveinst? command from within the terminal) There is no upstream Live media product. The Live media produced within the CentOS Project is based on and around the livemedia tools from the Fedora Project. These LiveCD?s only contains content found within the primary CentOS-6.0 distribution. No package from outside the distribution was included and no package has been changed from whats included in the base distribution. We appreciate all forms of feedback about these LiveCD, including specific application inclusion requests or feature changes in future releases. The best place to provide this feedback is via the centos-devel mailing list ( http://lists.centos.org/ ) and feature requests via the issue tracker ( http://bugs.centos.org/ ). Special thanks to Fabian Arrotin for taking up the LiveCD and LiveDVD efforts, and to everyone on the QA team who worked through the issues and helped build, test and release these images. -- Karanbir Singh The CentOS Project irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 77, Issue 7 **********************************************

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centos 6 and mingetty for /dev/ttyS1
by Jerry Geis 25 Jul '11

25 Jul '11

I've been playing with centos 6. Sometimes it gets into a mode when it "seems" like it hangs at boot. At reboot I hit ALT-D for details and the last thing printed is Starting atd. No I can press alt-f2 to get a login. Doing ps ax does not show a mingetty tty1, What might be going on here. What isn't completing to get a full boot. Thanks, Jerry

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Discuss July 2011