Discuss

discuss@lists.centos.org

34753 discussions

Rescan for new geometry without reboot?
by Amos Shapira 21 Oct '09

21 Oct '09

Hello, We just had our servers fitted with more disks. Most of the disks are growing existing RAID 1+0 channels, some are in new channels. Controllers and disks support live installation. I'd like to avoid a reboot just to let the system find that the disks are larger. All I can find so far suggests that its possible to rescan the disks, and even find the new geometry (e.g. http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-12/1555.html) but nobody knows how to actually convince the system to let me use the extra space without a reboot. Does anyone know of a way to achieve this? Thanks, --Amos

2 1

local centos repository upgrade from 5.3 to 5.4
by Paul Herbosch 21 Oct '09

21 Oct '09

Hi list, I run quite a few centos 5.3 servers and have a local yum repository which is working fine. Below a list of what I'm rsyncing at the moment + an extract from my / etc/yum.repos.d/CentOS-Base.repo file I copied the OS directory from the install media and ran createrepo on that dir. I would like to upgrade my servers to 5.4. I was wondering if I could simply replace the '5.3' part in the rsync source to '5.4' ? Or is there more to it? Thank you in advance, Kind regards, Paul Herbosch === What I'm currently rsyncing === rsync -avrt rsync://anorien.csc.warwick.ac.uk/CentOS/5.3/addons/i386 -- exclude=debug/ /var/www/html/centos/5/addons/ rsync -avrt rsync://anorien.csc.warwick.ac.uk/CentOS/5.3/centosplus/ i386 --exclude=debug/ /var/www/html/centos/5/centosplus/ rsync -avrt rsync://anorien.csc.warwick.ac.uk/CentOS/5.3/contrib/i386 --exclude=debug/ /var/www/html/centos/5/contrib/ rsync -avrt rsync://anorien.csc.warwick.ac.uk/CentOS/5.3/extras/i386 -- exclude=debug/ /var/www/html/centos/5/extras/ rsync -avrt rsync://anorien.csc.warwick.ac.uk/CentOS/5.3/updates/i386 --exclude=debug/ /var/www/html/centos/5/updates/ === Local /etc/yum.repos.d/CentOS-Base.repo file === [base] name=CentOS-$releasever - Base # mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch… baseurl=http://mylocalreposerver/centos/$releasever/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5 #released updates [updates] name=CentOS-$releasever - Updates # mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch… baseurl=http://mylocalreposerver/centos/$releasever/updates/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5 etc... -- Paul Herbosch Operations TBWA\ Worldwide IT Mobile: +32 477 36 81 92 www.mytbwa.com/Technology This e-mail is intended only for the named person or entity to which it is addressed and contains valuable business information that is privileged, confidential and/or otherwise protected from disclosure. If you received this e-mail in error, any review, use, dissemination, distribution or copying of this e-mail is strictly prohibited. Please notify us immediately of the error via e-mail to disclaimer(a)tbwaworld.com and please delete the e-mail from your system, retaining no copies in any media. We appreciate your cooperation.

3 4

"conventional cluster management software"
by Alan McKay 21 Oct '09

21 Oct '09

I saw this in the openfiler thread, and realised it is another major hole in my knowledge What do you all use for clustering, and does it run out-of-the-box with CentOS? My main areas of interest are : - DB clustering (PostgreSQL) - yeah, we're looking at commercial stuff and skytools - web server clustering - Apache on CentOS - storage clustering thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

3 2

5.4 at last?
by fred smith 21 Oct '09

21 Oct '09

Now that it appears that some folks are able to get the 5.4 downloads (and a GREAT BIG THANK YOU to all the centos team members who make this possible!) I'm wondering when the updates will begin flowing so that those of us running 5.3 can do "yum upgrade" and enjoy all the benefits too? Thanks in advance! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- "And he will be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace. Of the increase of his government there will be no end. He will reign on David's throne and over his kingdom, establishing and upholding it with justice and righteousness from that time on and forever." ------------------------------- Isaiah 9:7 (niv) ------------------------------

4 4

full-fledge PDF editor for Linux
by Boris Epstein 21 Oct '09

21 Oct '09

Hi all, Does anybody know of an editor that can do on Linux what Acrobat / Acrobat Pro can do on Mac/Windows? I have tried to use the PDF Import extension to the Open Office which appears barely functional - at least it is so slow as to be almost impractical. I have also tried pdfedit under Linux which seems to work fine but seems to have rather limited functionality. For instance, the capability to make bookmarks or to search through the whole document (as opposed to the current page) seems to be missing there. Any tips much appreciated. Cheers, Boris.

5 6

RH Server/Client disk sets -> Centos; how?
by Paul Johnson 21 Oct '09

21 Oct '09

I'm running Centos on 12 machines. Colleague runs Redhat Enterprise Linux and while studying his system, I see some gibberish/complication about his system being a "Client" install, not a "Server" install. Apparently, RH provides completely different disk sets for Server and Client installs. I've gone to the RH website and read about the difference between Client and Server, but I still don't understand why they make 2 different disks. In the "old days" of RH, there would be 1 set of disks, and when the install began, you would choose "server" or "workstation" as a way of choosing a default set of packages, and then you could freely pick and choose additional things. You could install gnome on a server, or an http server on a client. Centos seems to follow the good old RH packaging approach. This RHEL Client/Server thing actually causes some wrinkles if you try to transition a running system from RH to Centos, because the repository names are different. RH will have a version name like "5client" whereas Centos will just have 5. I understand this Centos list is not quite the right place to ask "why does RedHat do that?", but I bet some of you will know. What I really want to ask here is: what is the relationship between the several RHEL install types and the Centos disks? Does Centos collect up all the SRPM/RPM packages from both RHEL Client and Server? -- Paul E. Johnson Professor, Political Science 1541 Lilac Lane, Room 504 University of Kansas

2 1

Calling all Hackers
by DTS-Corp (Knowledgebase) 21 Oct '09

21 Oct '09

Hey guys. I have a server that is owned by me and can confirm through servint that it is owned by me. I would like to do a penetration test and of course to allow you to upload files on the server and kind of trash it to the point where it is always restarting and running out of memory etc etc. This is going to be mainly script kiddie stuff, however will be able to get you hired on with me for some other jobs that are invovlving network security evaluations. Here is the server info Cpanel and WHM running on CentOS hostname level1.ixkt.net IP addresses 64..131.81.30 64.131.81.31 64.131.81.32 64.131.81.30 SSH Port is on 3734

13 15

Karanbir's disks (was: openfiler )
by Alan McKay 21 Oct '09

21 Oct '09

On Tue, Oct 20, 2009 at 6:14 PM, Karanbir Singh <mail-lists(a)karan.org> wrote: > I have this running in production. only not with 2 machines, but with 4 > machines, doing raid-10 ( not mdraid10, but conventional 2 sets of > raid-1's 0'd ) Can you give more detail on what you've got there? Sounds interesting. -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

2 2

Created a DVD from Gnome Desktop -CentOS-5.3
by James B. Byrne 21 Oct '09

21 Oct '09

I am trying to put the dvd iso image of CentOS-5.4 onto a DVD. I have an LG multi-writer installed. I have used this device on this host to created CDs in the past but this is my first attempt at creating a dvd. When I put a blank DVD-R media in the drive then I see a desktop icon for "CD-ROM Disc" created. When I open the bittorent folder and click on the iso image "CentOS-5.4-x86_64-bin-DVD.iso" then I am prompted to open the image with "CD/DVD Creator". When I do this then I get a new window opened with the image file in the lower portion and an entry at the top labelled: CD/DVS Creator Folder and a button labled "Write to Disc" When I click on write to disc I am prompted to either create from image or create from file. I select image and am propted for the speed. I select maximum possible (the default) and press the write button. I get this error: Insert a rewritable or blank disc Please put a disc, with at least 4.3 GiB free, into the drive. The following disc types are supported: DVD+R DL, DVD-RAM, DVD-R, DVD-RW, DVD+R, DVD+RW I get the same thing if I use a DVD-RAM. What is going on? I have used the same model dvd writer on a MSWindows stations and have created readible dvds therefrom. Any ideas on how to proceed? -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

5 4

Re: [CentOS] using Linux as a NAS / SAN device
by J.Witvliet＠MINDEF.NL 20 Oct '09

20 Oct '09

Hi, -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Robert Heller Sent: Friday, August 28, 2009 12:23 AM To: CentOS mailing list Cc: CentOS mailing list Subject: Re: [CentOS] using Linux as a NAS / SAN device At Fri, 28 Aug 2009 00:12:27 +0200 CentOS mailing list <centos(a)centos.org> wrote: > > Hi, > > I'm looking at using Linux as a NAS / SAN device, and would like some > input from other's who have done this before? > > How would it compare to commercial SAN devices, Thecus N8800SAS > (http://www.thecus.com/products_over.php?cid=11&pid=177&set_language=e > nglish) > or something similar to these? > > I would probably use hardware RAID 10, and could go with either SAS / > SATA, and then probably offer iSCSI, Samba. NFS & rsync. > In terms of servers hardware, well either Tyan / SuperMicro / Intel / > Dell would be fine as well. But, my question is rather from a linux > point of view, how would Linux compare to dedicated NAS devices, in > terms of the OS managing the device? I think many dedicated NAS devices, are in fact Linux machines, using an embedded Linux system. -- Just a word of caution. I had a simarly question: building one self, or buyding dedicated hw. Looked through several specs of different boxes, and decided for an ICY-box, that can hold two sata-disks, raid0/raid1/jbod, has an GB-ethernet interface and capable of doing NFS. (which is actually an Linux-box) However, the box is as slow as a proverbial civil-servant, although the link is realy set to GB, it just might as well have been 100MB. And even that its not capable of filling to the max. (60Mb) Found out (afterwards ;-) on the relevant product mailing lists that it's the max the box can do. hans ______________________________________________________________________ Dit bericht kan informatie bevatten die niet voor u is bestemd. Indien u niet de geadresseerde bent of dit bericht abusievelijk aan u is toegezonden, wordt u verzocht dat aan de afzender te melden en het bericht te verwijderen. De Staat aanvaardt geen aansprakelijkheid voor schade, van welke aard ook, die verband houdt met risico's verbonden aan het elektronisch verzenden van berichten. This message may contain information that is not intended for you. If you are not the addressee or if this message was sent to you by mistake, you are requested to inform the sender and delete the message. The State accepts no liability for damage of any kind resulting from the risks inherent in the electronic transmission of messages.

3 3

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss