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Date:      Wed, 11 Nov 1998 09:39:00 -0800
From:      Mike Smith <mike@smith.net.au>
To:        Chuck Robey <chuckr@mat.net>
Cc:        "Jordan K. Hubbard" <jkh@zippy.cdrom.com>, Julian Elischer <julian@whistle.com>, Peter Wemm <peter@netplex.com.au>, Mike Smith <mike@smith.net.au>, current@FreeBSD.ORG
Subject:   Re: Is it soup yet? :-) 
Message-ID:  <199811111739.JAA03898@dingo.cdrom.com>
In-Reply-To: Your message of "Wed, 11 Nov 1998 09:02:11 EST." <Pine.BSF.4.05.9811110857490.10145-100000@picnic.mat.net> 

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> On Wed, 11 Nov 1998, Jordan K. Hubbard wrote:
> 
> > > the ability to run on old bootblocks is how shall I say...
> > > "required".
> > 
> > Well, you have and have always had just two options the minute we pull
> > the elf kernel switch: You switch customers to the 3-stage boot by
> > dropping a /boot.conf file into place which calls /boot/loader (which
> > you also install along with the 3.0 upgrade) or you relabel them so
> > they look just like freshly installed 3.0.x systems; it's your choice
> > whether you want to go for minimal impact or minimal difference.
> 
> Trouble is, with old bootblocks, that "drop boot.conf" trick doesn't
> work, it just hangs.  To get the elf kernel booted, you have to update
> the bootblocks, *then* they can use both.  Julian's request is dead as
> it stands, you can't do that.  To get the elf kernel, you need newer
> bootblocks, which is why I suggested detecting the old ones, and maybe
> refusing to install an elf kernel.

This isn't entirely true, actually.  *Some*sytems* don't like loading 
the loader with the old bootblocks.  I'd really appreciate it if 
someone with one of these systems (yes, how about you Chuck?) actually 
sat down and worked out *why* attempting to read zero bytes from the 
disk spins forever.  If all it takes to fix the problem is to pad the 
string table > 0, that's easy to deal with.

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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