Date: Sat, 23 Mar 1996 01:26:16 +1100 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, terry@lambert.org Cc: andreas@knobel.gun.de, dave@kachina.jetcafe.org, freebsd-hackers@freebsd.org Subject: Re: Adding a damn 2nd disk Message-ID: <199603221426.BAA09417@godzilla.zeta.org.au>
next in thread | raw e-mail | index | archive | help
>The driver for old MFM drives should read the CMOS drive table. This fails for - old BIOSes (e.g. 1987 Award) that don't have a CMOS drive table - old BIOSes (e.g. 1987 Award) that don't have a suitable CMOS drive index (I used the index for a 979(?)-cylinder disk for my 988- and 1314- cylinder disks and had no problems using the cylinders beyond the end under systems that didn't believe the BIOS). - more than the number of old MFM drives supported by the BIOS. Anyway, the driver for old MFM drives should use the geometry reported by the BIOS, and FreeBSD's wd driver does so, modulo bugs. >> >The disktab should go. >> >> I see that you have sold your stock of ESDI drives :-). >No, but I see that the slice code forces a translated world view >(fake cylinder boundries) on me pretty much anyway, unless I go >to an extrordinary amount of effort. You shouldn't have sold your stock of optical attachments 8-). The slice only advises about the geometry. The translated world view is encouraged by sysinstall's default partitioning scheme and the requirement to boot using the BIOS. Bruce
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199603221426.BAA09417>