Bart Schaefer spake the following on 3/14/2007 9:08 AM:
> On 3/14/07, Dag Wieers <dag@xxxxxxxxxx> wrote:
>>
>> + Upgrading from RHEL4 to RHEL5 using Anaconda does work. Even when
>> people do not recommend it for various reasons. You should be able to
>> update your packages directly to EL5.
>
> For the record, upgrading via "yum upgrade" does not appear to work.
> I proceeded as follows (using vmware so I could revert snapshots if
> anything went wrong):
>
> : mv /etc/yum.repos.d /etc/yum.repos.d.CentOS4
> : rpm -Uvh centos-release-4.92-4.i386.rpm
> : cp /etc/yum.repos.d.CentOS4/rpmforge.repo /etc/yum.repos.d
> : yum upgrade yum
>
> The end result (half an hour of dependency resolution later) is 27
> packages that have dependencies on at least 30 other packages that are
> not available, plus 2 conflicts. So I tried a straight
>
> : yum upgrade
>
> which leaves me with the following:
>
> Error: Unable to satisfy dependencies
> Error: Package VFlib2 needs libttf.so.2, this is not available.
> Error: Package crypto-utils needs libnewt.so.0.51, this is not available.
> Error: Package subversion needs libaprutil-0.so.0, this is not available.
> Error: Package kudzu needs kernel < 2.6.13, this is not available.
> Error: Package seamonkey needs seamonkey-nss = 1.0.8-0.2.el4.centos,
> this is not available.
> Error: Package seamonkey needs seamonkey-nspr = 1.0.8-0.2.el4.centos,
> this is not available.
> Error: Package subversion needs libapr-0.so.0, this is not available.
> Error: Package autofs needs kernel < 2.6.17, this is not available.
> Error: Package wine-core needs /usr/X11R6/bin/xmessage, this is not
> available.
> Error: Package hal needs kernel < 2.6.17, this is not available.
> Error: Package initscripts needs kernel < 2.6.12, this is not available.
> Error: Package subversion needs libneon.so.24, this is not available.
> Error: Package newt-perl needs libnewt.so.0.51, this is not available.
> Error: Package nfs-utils needs libevent-1.1a.so.1, this is not available.
A yum upgrade between major versions has never worked well. You either get
orphans, or dependency hell. An anaconda upgrade still can leave some orphans,
but you can at least get a working system most of the time.
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