At Sun, 15 Aug 2010 16:09:13 -0700 CentOS mailing list <centos at centos.org> wrote: > > Hi All, > > I just upgraded a machine from CentOS 5.3 32-bit to CentOS 5.5 x86_64 using > the updater on the release disk. Now that the machine is running 64-bit, I > notice that Yum is broken, failing with the following error: > ~~~ > There was a problem importing one of the Python modules > required to run yum. The error leading to this problem was: > /usr/lib/python2.4/site-packages/rpm/_rpmmodule.so: wrong ELF class: ELFCLASS32 > ~~~ Is there really an updater that goes from 32-bit to 64-bit? Or is it a CentOS 5.3 64-bit to CentOS 5.5 64-bit? I don't believe you *really* don't want to do a 'live update' from 32-bit to 64-bit. You should make a backup and do a fresh install of the 64-bit system. > > OK, so I thought I could fix this by installing the dependency. After digging > through a bunch of cascading dependencies using rpm, I got to the elfutils, > which didn't want to install until I used the --ignorearch switch on rpm. > However, when I try to install the 64-bit version of rpm-libs on top of that, > I still get the complaint about the failed dependency on elfutils. > > My first question is: Would I be better off just wiping the machine and > installing from scratch at this point, or is there some sane way to get yum > reconstructed? You probably should do a fresh install. > > And the second question: did I make a mistake by assuming that the upgrade > system would work as it should, or is this just a bug in the upgrade system? > And to my first question, does anyone know what else the updater is likely to > have broken? Again, are you sure the updater migrates from 32-bit to 64-bit and NOT just 64-bit < 5.5 to 64-bit 5.5? > > Thanks, > --Bill > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller at deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/