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Date:      Wed, 29 Mar 1995 11:43:32 +0100 (BST)
From:      Paul Richards <paul@isl.cf.ac.uk>
To:        bde@zeta.org.au (Bruce Evans)
Cc:        jkh@freefall.cdrom.com, root@Shockwave.COM, freebsd-bugs@freefall.cdrom.com
Subject:   Re: kern/280: new slice manager totally confused about old slice disks
Message-ID:  <199503291043.LAA19868@isl.cf.ac.uk>
In-Reply-To: <199503290712.RAA20923@godzilla.zeta.org.au> from "Bruce Evans" at Mar 29, 95 05:12:22 pm

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In reply to Bruce Evans who said
> 
> Disagreed.  Aren't you going to tell everyone to reinstall like you did with
> all previous releases?  The new sysinstall won't make any invalid slices
> or partitions ;-).

We might have to *strenously* suggest that sysinstall be allowed to rewrite
the MBR and disklabel.

I'll think about this and I'm sure Poul will shout at me if I get it wrong :-)

There's no reason why we can't read all the existing info off the disk and
re-write correctly as part of the installation. We will obviously get a
confirm from the user but if they override this we'll just tell them they're
on their own and that it's not our fault if everything breaks.

This should fix up the problem of previous MBR/disklabel formats we've
been using without forcing a total re-install of the whole system. We'll
have to get it absolutely spot on though or we'll toast their existing
partitions.

-- 
  Paul Richards, FreeBSD core team member. 
  Internet: paul@FreeBSD.org,  URL: http://isl.cf.ac.uk/~paul/
  Phone: +44 1222 874000 x6646 (work), +44 1222 457651 (home)
  Dept. Mechanical Engineering, University of Wales, College Cardiff.



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