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Re: [linux-lvm] Re: *** ANNOUNCEMENT *** LVM 1.0 available at www.sistina.com



On Wed, Aug 15, 2001 at 07:04:28PM +0200, Andrea Arcangeli wrote:
> On Wed, Aug 15, 2001 at 06:50:05PM +0200, Heinz Mauelshagen wrote:
> > offset. No known way around this.
> 
> As said in the attached email (never got a reply about it yet btw)
> there's definitely a way around it, there's no magic in the beta7
> lvmtools, anything they can do can be done as well in the new lvmtools
> if we want to (and I believe we want to). I understand you don't want to
> clobber the core code with backwards compatibility cruft, but a new
> backwards compatibility utility, even in a new directory to make obvious
> nothing gets clobbered, could be developed and it would solve the
> problem.

I'm sorry I didn't reply to you Andrea, I didn't mean to be
disrespectful, but I didn't seem to be able to make my position
clear.  Let me try again:

In previous beta releases of LVM the PE position was always being
calculated, rather than calculated upon PV creation and put in the
metadata.  I was not aware of this.

This calculation varied through the beta series, it was based on some
constants that I changed (eg, SECTOR_SIZE which I changed to support
rawio), and constants that other people changed.  This means that
different betas have PE's at different places.

The correct solution to this (IMO) is to add the missing pe_start
field to the metadata.


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