Date: Tue, 20 Jun 1995 02:31:08 +1000 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, rgrimes@gndrsh.aac.dev.com Cc: bugs@FreeBSD.org Subject: Re: 2.05R panics on boot Message-ID: <199506191631.CAA09759@godzilla.zeta.org.au>
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>From rgrimes@gndrsh.aac.dev.com Tue Jun 20 02:09:41 1995 >Received: from gndrsh.aac.dev.com ([198.145.92.241]) by godzilla.zeta.org.au (8.6.9/8.6.9) with ESMTP id CAA09000 for <bde@zeta.org.au>; Tue, 20 Jun 1995 02:08:16 +1000 >Received: (from rgrimes@localhost) by gndrsh.aac.dev.com (8.6.11/8.6.9) id JAA01169; Mon, 19 Jun 1995 09:07:30 -0700 >From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> >Message-Id: <199506191607.JAA01169@gndrsh.aac.dev.com> >Subject: Re: 2.05R panics on boot >To: bde@zeta.org.au (Bruce Evans) >Date: Mon, 19 Jun 1995 09:07:30 -0700 (PDT) >Cc: bugs@FreeBSD.org >In-Reply-To: <199506191255.WAA02612@godzilla.zeta.org.au> from "Bruce Evans" at Jun 19, 95 10:55:16 pm >X-Mailer: ELM [version 2.4 PL24] >MIME-Version: 1.0 >Content-Type: text/plain; charset=US-ASCII >Content-Transfer-Encoding: 7bit >Content-Length: 1611 >> >> >Okay.... here is the output if I let the Ontrack DM load the dynamic >> >overlay and then use the option to boot from the boot.flp. >> >> >If I choose wd(1,a)/kernel.GENERIC -v >> >> >FreeBSD 2.0.5-RELEASE #0: Sat Jun 10 10:46:56 1995 >> >... >> >wd0: 814MB (1667232 sectors), 1654 cyls, 16 heads, 63 S/T, 512 B/S >> >... >> >wd1: 518MB (1061424 sectors), 1053 cyls, 16 heads, 63 S/T, 512 B/S >> >... >> >changing root device to wd1a >> >BIOS Geometries: >> > 0:03391f3f 825 cyl, 31 heads, 63 sects >> > 1:03fd0f3f 1021 cyl, 15 heads, 63 sects >> > 0 accounted for >> >wd1s1: type 0xa5, start 63, end = 1061423, size 1061361 : OK >> >> This all seems OK. >> >> >------------ >> >Notice that no where in the boot process does it mention about the >> >Ontrack DM. >> >> This is OK. wd0 isn't looked at since your'e not trying to boot >> from it, so Ontrack isn't seen to be on it. It would be seen when the >> DOS partition is mounted if you got that far. >> Now if I use hd(1,a)/kernel.GENERIC -v (which I know I am >> >not supposed to)... >> >> >It shows these extra lines after the "0 accounted for" >> >wd0: Found "Ontrack Disk Manager" on this disk. >> >wd0s1: type 0x1, start 126, end=1665278, size 1665153 : OK >> >panic: cannot mount root >> >> This is normal. hd(1,a) becomes wd0a, which you don't have, but >> Ontrack gets noticed when wd0 is looked at in the failed attempt to >> open wd0a. >I think you really meant to say ``hd(1,a) becomes sd0a, which...'' I meant what I said. It can't have become sd0a because then wd0 wouldn't have been looked at. It only becomes sd0a if the disklabel type is DTYPE_SCSI. sd(0,a) becomes wd0a for the same reason. sysinstall sets the disklabel type correctly under the assumption that scsi disk names start with 's'. Typing hd(*, *) has no effect on the FreeBSD major device. It only forces the FreeBSD unit number to 0. Bruce
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