Date: Mon, 30 Oct 1995 12:18:29 +1030 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: bde@zeta.org.au (Bruce Evans) Cc: msmith@atrad.adelaide.edu.au, terry@lambert.org, hackers@freebsd.org, lenzi@cwbone.bsi.com.br Subject: Re: boot disk.... Message-ID: <199510300148.MAA00367@genesis.atrad.adelaide.edu.au> In-Reply-To: <199510271940.FAA25718@godzilla.zeta.org.au> from "Bruce Evans" at Oct 28, 95 05:40:54 am
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Bruce Evans stands accused of saying: > > >Stage 2 boostrap ... > >... should perform MBR fixup to > >guarantee that the absolute offset field in the MBR matches the c/h/s > >values for the slice under the BIOS geometry. > > Only for its own benefit. Drivers don't want to know about yet another > translation. It's actually intended to remove the need for any driver to need to know about any translation. There are issues related to disks not covered by a BIOS, but from the point of view of the 'panic: can't mount root' problem experienced when an unwitting installer gets the geometry wrong. > >It should also be buildable > >as a DOS program, to allow it to work with Ontrack's Disk Mangler. The > > Nothing should require DOS utilitites to build. Nothing would. "It should be buildable as a DOS program"; in other words, it should fit into the fbsdboot tool, to cover all booting scenarios. > Bruce -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] My car has "demand start" -Terry Lambert UNIX: live FreeBSD or die! [[
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