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Re: [linux-lvm] LVM, lilo and MBR?

On Tue, Mar 27, 2001 at 11:11:28AM -0700, Andreas Dilger wrote:
> Urs Thuermann wrote:
> > Patrick Caulfield <caulfield sistina com> writes:
> > > 2. IIRC, someone had a patch for lilo to load the kernel and initrd
> > >    image from a LV.  Where can I get it?  And will it go into the
> > >    standard lilo package?
> > 
> > Andreas will be along in a moment !
> Yes, patch for LILO has already been sent to LVM mailing lists a
> couple of times.  I found a copy at:
> http://marc.theaimsgroup.com/?l=linux-lvm&m=98451699131728&w=4
> I have not yet submitted it to the LILO maintainer, because if you try
> to run it on older LVM kernel code (i.e. what's in the official 2.4.2
> kernel), it will immediately crash your system.  The Sistina folks have
> told me they will submit an LVM kernel patch with the fix...

Which is already history now.
Linus has it since 10 days or something...

Heinz      -- The LVM guy --

> > > Don't run LILO on /dev/sda if it's a PV because it will destroy
> > > it.  You should partition the disk into /dev/sda1 (that way
> > > the PV will start further in and leave space for LILO)
> > 
> > Hm, I hoped I could get rid of the broken partitioning scheme of the
> > PC and C/H/S addressing used in the partition table.
> But then again, your MBR has the same problems, so why worry?  Even so,
> you only need the partition table on the boot disk, so no big deal.
> > Are there objections to change LVM so that the VGDA is placed at some
> > fixed offset (say 1 sector or 1 block (1K)) from the beginning of the
> > PV?  This is how many file systems also use block devices to avoid
> > conflicts with MBR, boot sectors and so on.
> Yes, because it will break every LVM setup around.  Too bad it wasn't
> in the original design, but it is too late to change.
> Cgeers, Andreas
> -- 
> Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
>                  \  would they cancel out, leaving him still hungry?"
> http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert
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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Bartningstr. 12
                                                  64289 Darmstadt
Mauelshagen Sistina com                           +49 6151 7103 86
                                                       FAX 7103 96

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