Chris Tooley wrote: > Geerd-Dietger Hoffmann wrote: >> Hello >> >> On Mon, Nov 16, 2009 at 5:41 PM, Chris Tooley <[log in to unmask]> wrote: >>> Hello All, >>> >>> My google foo is apparently not good enough to find a page that might >>> describe the process of switching from centos4 to SL4.. Does anyone know of >>> a good HOWTO or tutorial about this? >> Could you please be a little more precise. Do you want to use the SL >> packages and leave the base (difficult) or do you want to reinstall? >> Changing a running system could be quite hard. >> >> Cheers Didi > > Hi! > > I would like it to identify as Scientific Linux, and use the Scientific > Linux repos for regular updates - reinstall sounds like I may have to > burn an ISO...? > > Thanks, > -Chris If you just want to switch a running system, I *think* this would be all you need to do. 1 - Point Yum to look at SL yum repositories 1a - rm -f /etc/yum.repos.d/*repo (a bit drastic, but if you want to go slow, just move everything) 1b (SL5) - rpm -Uvh http://ftp.scientificlinux.org/linux/scientific/5x/i386/misc/RPMS/yum-conf-latest.SL.noarch.rpm 1b (SL4) - rpm -Uvh http://ftp.scientificlinux.org/linux/scientific/4x/i386/misc/RPMS/yum-conf-latest.SL.noarch.rpm 2 - Replace the following packages: yum (from centos) -> yum (from SL) centos-release -> sl-release centos-release-notes -> sl-release-notes (SL5 Only) 2a - yum clean all (or even better 'rm -rf /var/cache/yum') 2b - yum update yum 2c - yum install sl-release\* 3 - Do a yum update, cleaning up the rest of the stuff. Note: I have not done or tried this. But it seems logical. Troy -- __________________________________________________ Troy Dawson [log in to unmask] (630)840-6468 Fermilab ComputingDivision/LSCS/CSI/USS Group __________________________________________________