Date: Wed, 22 Mar 1995 04:03:48 +1000 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, phk@ref.tfs.com Cc: gibbs@estienne.CS.Berkeley.EDU, gibbs@freefall.cdrom.com, hackers@freefall.cdrom.com, jkh@freefall.cdrom.com, peter@bonkers.taronga.com, rgrimes@gndrsh.aac.dev.com Subject: Re: SVNET Meeting? Message-ID: <199503211803.EAA21797@godzilla.zeta.org.au>
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>> There will have to be a another stage in the boot for 2.1. This >> is not hard to implement, except for the dosboot and possibly the >> netboot. The dosboot and the netboot are already out of date. >> The netboot lacks support for BIOS drive geometries (which is >> essential for correct operation of fdisk and sysinstall) and both >> lack support for BIOS memory sizes. >Say what ? Fdisk and sysinstall now get the disk geometry from the in-core disk label. If there is no on-disk label, then in-core label is faked and depends on the partition table. If there is an on-disk BSD label, then it may have a geometry different from the BIOS geometry. E.g., it may have the geometry printed by the driver probe. Fdisk and sysinstall need to know the correct BIOS geometry to initialize the C/H/S values in the partition table. Bruce
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