[CentOS] upgrading 32-bit installation to 64-bit

[fred smith]

On Sun, Mar 07, 2010 at 02:19:45PM -0500, Robert Heller wrote:
> At Sun, 7 Mar 2010 13:41:57 -0500 CentOS mailing list <centos at centos.org> wrote:
> 
> > 
> > Hi!
> > 
> > I've got a 32-bit Centos installed on an AMD Phenom II X2 processor and
> > I'm interested ni making it 64 bit instead. But I'd sure like to avoid
> > having to go back thru the whole installation again... in part because
> > I've got sotware RAID set up and I'm assuming that I can't do a fresh
> > install into it without having to re-configure the whole thing.
> 
> Doing a fresh 64 install on an existing 32-bit system with software RAID
> does not mean you have to re-configure the RAID system. 
> 
> Are you using LVM?  Have you broken up your root, /boot, and /home (and
> possibly /var/<mumble>) as separate file systems (except /boot) as LVM
> logical volumes?  If so, it is easy.  I did this recently.  I created
> fresh root, /usr, and /var filesystems (lvcreate ...), then installed
> 64-bit CentOS 5.4.  I retailed the old 32-bit CentOS 4.8 system tree and
> copied the config files needed to bring the 64-install up to speed.. 
> 
> > 
> > So, is it possible (and practical) to upgrade a 32 bit system to 64?
> 
> Not recomended to 'upgrade'.

Thanks, robert. When the time comes I may drop you a privater email to
inquire if you can expand on this.

Fred

-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us -----------------------------
                       I can do all things through Christ 
                              who strengthens me.
------------------------------ Philippians 4:13 -------------------------------