Upgrading to RHEL 4

[Smith, Albert]

> -----Original Message-----
> From: redhat-install-list-bounces at redhat.com 
> [mailto:redhat-install-list-bounces at redhat.com] On Behalf Of 
> Rick Stevens
> Sent: Monday, November 21, 2005 2:16 PM
> To: Getting started with Red Hat Linux
> Subject: RE: Upgrading to RHEL 4
> 
> On Mon, 2005-11-21 at 13:03 -0500, Smith, Albert wrote:
> > > -----Original Message-----
> > > From: redhat-install-list-bounces at redhat.com
> > > [mailto:redhat-install-list-bounces at redhat.com] On Behalf Of Rick 
> > > Stevens
> > > Sent: Monday, November 21, 2005 12:50 PM
> > > To: Getting started with Red Hat Linux
> > > Subject: RE: Upgrading to RHEL 4
> > > 
> > > On Mon, 2005-11-21 at 12:41 -0500, Smith, Albert wrote:
> > > >  
> > > > 
> > > > > -----Original Message-----
> > > > > From: redhat-install-list-bounces at redhat.com
> > > > > [mailto:redhat-install-list-bounces at redhat.com] On Behalf Of 
> > > > > Rick Stevens
> > > > > Sent: Monday, November 21, 2005 12:35 PM
> > > > > To: Getting started with Red Hat Linux
> > > > > Subject: Re: Upgrading to RHEL 4
> > > > > 
> > > > > On Sun, 2005-11-20 at 03:07 +0000, 
> jlopes151 at comcast.net wrote:
> > > > > > Ok so I have downloaded the *.iso files now what? I don't
> > > > > yet know enough about Linx to use these files. Can 
> anyone help?
> > > > > 
> > > > > You can burn the files to CDs and install from there.  That's 
> > > > > probably the easiest way.
> > > > > 
> > > > > Are you currently running Linux?  If so, what version?  
> > > Can you post
> > > > > the output of the "dmesg" command?
> > > > > 
> > > > I actually had a problem upgrading from RHEL3 to 4 with LVM.
> > > > 
> > > > RedHat states to do a fresh install.
> > > 
> > > I can see that.  LVM did change a bit between the 2.4 and 
> 2.6 kernels.
> > > 
> > Well I found major problems between 3 and 4 that even prevents the 
> > upgrade to occur. Anaconda has a problem upgrading a multipartioned 
> > server. Whether it be LVM or not. It only mounts / . If 
> your /boot is 
> > on another FS as well as /usr /var it can't find half of 
> the things it 
> > needs to do the upgrade and eventually you will run out of 
> space and 
> > have a blown upgrade.
> 
> Now that's new.  It should mount / and any other filesystems, 
> since they're all rooted at /.  It's supposed to search 
> /etc/fstab.  I sure hope this has been squawked to bugzilla.
> 
> > So the recommended solution is to do an Administrator 
> Guided Install 
> > which is a fresh install, patch the system then reinstall 
> your apps. 
> > For an Oracle system that's a real pain in the rump but not 
> difficult 
> > as long as your oracle binaries are in a sperate FS then /usr.
> > 
> > This was the same for 2.1 to 3 and 2.1 to 4. IMHO if you are going 
> > from
> > 2.1 to 4 I wouldn't upgrade I would do a fresh install anyway.
> 
> Hmmm.  Each of those describe a kernel migration, I think.  2.1 was a
> 2.2 kernel (not sure on that one), 3 is a 2.4 kernel (I'm 
> sure on that) and 4 is a 2.6 kernel (again, I'm sure of that).
> 
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -        Polygon: A dead parrot (With apologies to John Cleese)      -
> ----------------------------------------------------------------------
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> 

I know I requested Dell support to open an enhancement request with
redhat but they are unable to do that. But they did file a bug. The
problem is on their startup on RHEL4 they don't activate the existing
volumegroups nor do they scan for them. I am personally unsure of how to
drop out of the installer during the install to active the volumegroups.
However I doubt that their upgrade scripts even have the command
inserted to convert the LVM1 to LVM2 at this time.



Albert Smith
Sr. Unix Systems Administrator
HPCSA, RHCT  
Genex Services
440 E. Swedesford Rd.
Wayne, PA 19087
albert.smith at genexservices.com
(610) 964-5154