Date: Sun, 22 Jun 1997 01:23:34 -0700 From: "David E. Tweten" <tweten@ns.frihet.com> To: Bruce Evans <bde@zeta.org.au> Cc: freebsd-mobile@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG Subject: Re: NEC 6030X, FreeBSD 2.2.2, and the CDROM Message-ID: <199706220823.BAA09401@ns.frihet.com>
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Initially quoting me, Bruce Evans said: >>the CD acts as /dev/wd0. That gives me two choices. I always leave >>the CD drawer in -- and always boot from the CD, or I can boot the first >>time into single user mode, change /etc/fstab to refer to /dev/wd0 instead >>of /dev/wd1 and never install the CD drawer again under FreeBSD. Other >>strategies produce a panic, immediately after the kernel gets through >>probing devices. The cause is inability to mount the root partition >>(because /etc/fstab points to the "wrong" device). >The panic is before /etc/fstab is read. I disagree, because changing the contents of /etc/fstab (from wd1 based contents provided by the CD install to wd0 based contents) prevents the panic. >I think the wd drive number doesn't actually change, it just doesn't match >the BIOS drive number. Try booting with 1:wd(0,a)kernel or 0:wd(1,a)kernel. When I ran the install CD, it made an /etc/fstab built around wd1. I have since gone into single user mode and changed it to be built around wd0. Also, the following tests were done with the CD drawer in place. Entering "1:wd(0,a)/kernel" results in the following immediately after the last device probe: Changing root device to wd1a swapon: /dev/wd0b: Device not configured Automatic reboot in progress ... Can't open /dev/rwd0a: Device not configured /dev/rwd0a: CAN'T CHECK FILE SYSTEM. /dev/rwd0a: UNEXPECTED INCONSISTENCY: RUN fsck MANUALLY. Automatic file system check failed ... help! Enter pathname of shell or RETURN for sh: Entering "0:wd(1,a)/kernel" results, immediately after the last device probe, in an infinite loop of: Error: D:0x81 C:0 H:0 S:0 Entering nothing results (immediately after the last device probe) in: panic: cannot mount root Syncing disks ... done Automatic reboot in 15 seconds - press a key on the console to abort Thanks for taking a shot at it. Are there other ideas? -- David E. Tweten | 2047-bit PGP fingerprint: | tweten@frihet.com 12141 Atrium Drive | E9 59 E7 5C 6B 88 B8 90 | tweten@and.com Saratoga, CA 95070-3162 | 65 30 2A A4 A0 BC 49 AE | (408) 446-4131 Those who make good products sell products; those who don't, sell solutions.
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