Re: Upgrading RH 9 to RHEL 3: problems? gotchas? what are your experiences?

From: Linux Doctor (NOSPAMusenet_at_haughtmail.com)
Date: 05/19/04

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    Date: Wed, 19 May 2004 11:05:04 -0600

    On Tue, 18 May 2004 at 1:41pm, Tommy Reynolds <TommyReynolds@yahoo.com>...:

    > On Tue, 18 May 2004 13:35:40 -0400, Jeffrey Silverman wrote:
    >
    >> * Should I /Upgrade/ or do a /Clean Install/ of RHEL?

    If you follow the standard install method (using anaconda) via the RHEL
    distribution disks. It will NOT allow you to upgrade from RH9, and you
    must do a clean install. The exception is when upgrading from a 2.x
    enterprise product, but even then, Red Hat suggests a clean install. It
    basically forbids upgrading if you're running RH 9 and older. I read in
    one of their docs that they felt there were enough package changes (and
    also kernel) that an upgrade from 7.x,8.x,9 to RHEL could be unstable.

    Mind you, some people have bypassed this by doing crafty things with apt
    and yum repository updates, but I figure if Red Hat is trying to lock me
    out of upgrading from RH9, I should follow their advice and do a clean
    install.

    Remember, however, that you can greatly simplify your "clean install,"
    depending on how your current RH 9 system is set up. For instance,
    instead of one large / partition, under which goes /usr, /var, /home,
    etc., I have always used seperate partitions for these. The advantage is
    that when I installed RHEL, I specified NOT to reformat /home or /opt
    (which I use for add-on packages and source). In this way, after the
    "clean install," I still had my old /opt and /home from my RH9
    Installation. Furthermore, before doing so, I made a copy of /etc in my
    home directory, too (it's pretty small) so I had all my old /etc config
    files preserved on the drive after the installation of RHEL. Then, I
    could pretty much copy most of my old config files from my preserved RH9
    /home/etc to the new /etc, since many of the RHEL services are compatible
    (config file-wise) between RH9 and RHEL. That is, I could reuse my
    smb.conf (I was already at 3.0), and all my apache config files, etc.

    The only glitch I encountered with the upgrade was with my Gateway laptop,
    The installer didn't detect (nor configure, obviously) my built-in touch
    pad. Again, having kept the old XF86config file from my RH9 installation,
    I resolved that quickly. Neall

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