As I have 120 server appliances to upgrade, reinstall would, well, suck. Thanks for the script. I will play around with it. I need to change it to 32bit, smp arch. Any other guidance that you can think of. Thanks in advance. -----Original Message----- From: yum-bounces@xxxxxxxxxxxxxxxxxxxx [mailto:yum-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Garrick Staples Sent: Friday, September 12, 2008 11:25 AM To: Yellowdog Updater, Modified Subject: Re: Major version upgrade via YUM?? On Fri, Sep 12, 2008 at 10:55:24AM -0400, Seth Vidal alleged: > On Fri, 2008-09-12 at 10:47 -0400, Sciandra, Joel wrote: > > Are there issues doing a major version upgrade such as Centos 4.6 to > > Centos 5.2 via YUM? > > > > I think you'll find the kernel swap-around is tricky from 4->5 b/c of > all sorts of dep changes. > > Big jumps like that are frequently dodgy but do-able provided you > reduce the set of pkgs on the machine to as small a set as possible. > > My general suggestion if you want to try it would be: > 1. to do a full backup > 2. attempt the update > 3. if it fails then punt and reinstall up to 5.2 Here's my quick and dirty script that I've been using. It really is an ugly thing to do to a machine. The rpm URLs need to be updated. #!/bin/bash set -e set -x rpm -Uvh http://mirrors.usc.edu/pub/linux/distributions/centos/5.1/os/x86_64/Cent OS/centos-release-5-1.0.el5.centos.1.x86_64.rpm http://mirrors.usc.edu/pub/linux/distributions/centos/5.1/os/x86_64/Cent OS/centos-release-notes-5.1.0-2.x86_64.rpm rpm -e MySQL-python rpm -e e2fsprogs.i386 --justdb --nodeps rpm -e elfutils.i386 --justdb --nodeps rpm -e --justdb --nodeps python-elementtree sed -i 's/centos4/CentOS-5/' /etc/yum.repos.d/CentOS-Base.repo yum -y update rpm -e python-sqlite --allmatches --nodeps rpm -Uvh http://mirrors.usc.edu/pub/linux/distributions/centos/5/os/x86_64/CentOS /python-sqlite-1.1.7-1.2.1.x86_64.rpm yum -y update yum clean all echo Fixing /etc/sysconfig/autofs ( . /etc/sysconfig/autofs echo -n OPTIONS=\" for a in $LOCALOPTIONS;do case "$a" in -*) echo -n $a\ ;; *) echo -n -O $a\ ;; esac done echo -n -Dro=\"\"\ echo \" ) >> /etc/sysconfig/autofs -- Garrick Staples, GNU/Linux HPCC SysAdmin University of Southern California Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html _______________________________________________ Yum mailing list Yum@xxxxxxxxxxxxxxxxxxxx https://lists.dulug.duke.edu/mailman/listinfo/yum
