Date: Thu, 25 May 2000 10:27:59 +0200 (SAST) From: Peter van Heusden <pvh@egenetics.com> To: freebsd-stable@freebsd.org Subject: Problem seeing old 4.0-C filesystems from 4.0-R boot floppy Message-ID: <Pine.BSF.4.21.0005251026510.44298-100000@fling.sanbi.ac.za>
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Hi I asked this question on FreeBSD-questions, but didn't receive an answer. Since this at least overlaps with FreeBSD-stable's domain, I thought I'd forward the question here, in the hope that someone can help. I (in a fit of madness) managed to hose my FreeBSD machine by installing the /usr/src from 4.0-R, doing a make buildworld, make installworld. Since I was running with an old 4.0-C kernel (from about April 1999), the new binaries refused to run, core-dumping because of an unknown syscall. Since I was unable to boot the 4.0-C kernels I had, I booted from a 4.0-R boot floppy, and tried to get sanity back using the fixit floppy. Unfortunately, when I try and see my filesystems, I can't see /usr or /var. This machine only has a single hard disk in it, which is on the secondary IDE controller (so as not to conflict with my SCSI controller - the computer freezes up if my IDE disk is on the primary IDE, and the SCSI disk is installed). The disk is the master on that controller. Under 4.0-C, the filesystems were on /dev/wd2s1a (root), /dev/wd2s1f (/usr) and /dev/wd2s1e (/var). Since these devices didn't exist when I went into fixit mode, I managed to create them using the MAKEDEV from the fixit floppy. (Once I've got everything mounted, I can make a new 4.0-R kernel from the sources which are on my IDE disk) However, when I try and mount things, I can only mount the root filesystem. Both the /dev/ad2s1f and /dev/ad2s1e give me an 'invalid superblock' message. So: Does anyone have an explanation for what might be going on here? Can someone send me the correct major/minor numbers for ad2s1* device nodes. I am not entirely convinced that MAKEDEV created them correctly (since I had to hack it to get it to work), and I can try and and mknod the correct device nodes directly. Thanks for any assistance, Peter -- Peter van Heusden pvh@egenetics.com Electric Genetics To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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