Re: RHAS 3, dual opteron S2885 Tyan kernel crash issues

[Jason McIntosh <McIntoshJ@xxxxxxxxxxxx>]

After trying several things, it looks like I am going to reinstall 
without using LVM at this time.  There would have been some advantages, 
but overall, it looks like LVM is MUCH more of a pain than useful.  
Perhaps at some later date, when things settle down more (i.e. LVM2 
becomes the standard) I'll go back to it.  This should also make 
upgrading a ton easier.  I tried upgrading by installing device mapper, 
LVM2 (which is supposedly backwards compliant), the newer mkinitrd, 
etc.  This didn't help things, at all.  The kernel still couldn't seem 
to run vgascan to find the volume group and load it properly.  And when 
it comes down to it, I'd rather just get a system up than continue to 
play, so reformatting without LVM looks like the best option.
So, after playing with it for a day or two, that's what I've come up 
with.  Thanks for the suggestions all.
Jason

Jason McIntosh
Programmer/Analyst
University of Missouri
573-884-3865
GnuPG Key: http://poetshome.com/about/mcintoshj_missouri.edu.gpgkey
On Dec 1, 2004, at 9:31 AM, John Haxby wrote:

> Jason Russler wrote:
>
> > >  anyone has some suggestions there, I'd be open to them. Is it a 
> > > matter of just upgrading the LVM packages to version 2? Any chance 
> > > of using the packages from the latest Nahant beta to get this to 
> > > work? Other comments/suggestions from anyone else who's got a 
> > > similar configuration?
> >
> >
> > Never trust a major upgrade process when using a Linux LVM.  Even if 
> > you have all of the *tab and config files - or even if you're just 
> > upgrading the kernel to 2.6.  Got burned there once.  Just backup all 
> > the data to tape or other disks and expect to rebuild the LVM setup 
> > from scratch - the upgrade my work, or it may not.  That's my 
> > 2-cents.
> While I wouldn't go quite so far as Jason's comments, in this case I 
> agree.   It is possible to get the 2.6 kernel with LVM2 running on 
> RHEL3 (AS, ES, or WS), but it's a bit painful -- I speak from personal 
> experience -- and you still have some things that simply no longer 
> work.   Taking the kernel and LVM2 RPMs from nahant almost certainly 
> won't work (was that what you were suggesting?).   On the other hand, 
> a straightforward upgrade from taroon to nahant should work.   Having 
> said that you'll be working with LVM1 data structures and I believe 
> that there are advantages to using the LVM2 data structures.
>
> If you back everything up to tape or a spare disk and install nahant 
> beta2 from scratch then you'll be able to install nahant-proper when 
> it comes out without blowing away all your logical volumes; just splat 
> the system ones (an upgrade from nahant beta to final won't be 
> supported).
>
> jch
>
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