> >
> > This is one of those questions: it's doable, but if you need to ask,
> > probably not by you;-)
> >
> > It might also be possible to force Anaconda to do the upgrade.
> >
> > There is some probability > 0 that you will be left with
> orphaned and
> > unsupported packages, depending on what you have installed.
> >
>
> Thanks John.
>
> Basically if you have done updates to the system.. you will have
> 'orphaned' packages. Fedora Core 5 and 6 kernel, glibc, (or other
> things) have higher rev's than what is in CentOS-5. The best fix is to
> do a backup of /etc and other config files, backup your /home
> /var/I_do_stuff_here partition and install a fresh CentOS-5
>
A couple of suggestions for doing the fresh install and minimizing
some of the pain.
1. tar /etc to someplace safe. While you cannot just restore the
files,
you can use them as a reference. There are pieces of /etc/passwd,
/etc/shadow, /etc/samba/smbpasswd that you will want to copy to the
new system to preserve users passwords. Also your
/etc/samba/smb.conf
file will probably just copy across. (assuming you are running
samba).
Other data such as that from /etc/resolv.conf will come in handy
when
fixing the network configurations.
2. Do rpm -qa > /some/safe/file.txt so you have a list of the packages
installed on your FC6 machine.
3. I am assuming your root partition is separate from user data in
places
like /home. If not, you will need to make sure you have a backup
restore plan or the users get testy. You will want a backup anyway
just in case something goes haywire. If /home is in a separate
partition, you will be able to tell the installer to leave it alone.
If you are really fortunate, your root partition is on a separate
physical
drive. Then you can stick a new drive in and do the install. The old
drive
becomes a good fallback.
Just my 2 cents.
Bob Styma
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