Date: Fri, 9 Feb 2007 07:46:10 -0500 From: "Marty Landman" <martster@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: recovery after power outage Message-ID: <70063950702090446x712d7a94vb3b2a613a426d760@mail.gmail.com>
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On 2/8/07, Pieter de Goeje <pieter@degoeje.nl> wrote:
>
> If the slice and partition table are still intact (as they were before the
> outage), a normal fsck -F on /dev/ad1s1a will get the pc booting again.
Well I managed to get the machine booting by editing /etc/fstab
%cat /etc/fstab
# Device Mountpoint FStype Options Dump
Pass#
/dev/ad0s1b none swap sw 0 0
/dev/ad0s1a / ufs rw 1 1
/dev/ad0s1d /tmp ufs rw 2 2
/dev/ad0s1f /usr ufs rw 2 2
/dev/ad0s1e /var ufs rw 2 2
#/dev/ad1s1c /hoss ufs rw 2 2
/dev/acd0 /cdrom cd9660 ro,noauto 0 0
That's a great start, however I'd like to recover what I can from ad1s1c.
%sudo fsck -F ad1s1c
fsck: exec fsck_unused for /dev/ad1s1c in /sbin:/usr/sbin: No such file or
directory
fsck: exec fsck_unused for /dev/ad1s1c in /sbin:/usr/sbin: No such file or
directory
What is that telling me?
You
> can do this from a FreeBSD live cd such as FreesBIE or the fixit cd. You
> can
> then fsck the the rest of the filesystems in single user mode. You may
> also
> want to use the live CD to backup the important bits before, ehm, further
> corrupting/restoring the filesystems. ;)
Sorry Pieter I'm lost again. Can't I use sysinstall? Fdisk? Wish I
understood the next steps here.
FWIW when I do a sysinstall and then use the fdisk utility I get
Disk name: ad1 FDISK Partition
Editor
DISK Geometry: 30515 cyls/255 heads/63 sectors = 490223475 sectors
(239366MB)
Offset Size(ST) End Name PType Desc Subtype
Flags
0 126 125 - 12 unused 0
126 490223412 490223537 ad1cs1 8 freebsd 165
490223538 11214 490234751 - 12 unused 0
Which appears that I perhaps have not totally hosed this disk up.
Marty
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