Date: Mon, 10 Oct 2005 09:39:14 -0700 (PDT) From: "Mr. Darren" <darren780@yahoo.com> To: freebsd-stable@freebsd.org Subject: harddrive won't mount/boot, superblock can't be fixed. Message-ID: <20051010163914.23801.qmail@web34712.mail.mud.yahoo.com>
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Mr. Darren <darren780 at yahoo.com> wrote: > I had a bad ide cable which I have now replaced. on > bootup the filesystem produced a lot of errors and I > lost my first superblock. I since fsck'd and repaired > the superblock at sector 32. At no time does fsck > create, fix, or transfer the sector 32 superblock to > the front of the drive. mount won't accept the drive > in the condition it's in(says no superblock, or bad > superblock.. different programs, different errors). > If anyone knows how I could get my data off and format > my /var drive, or possibly repair my damaged > superblock at the front of the drive with anyone of > the 50-some backups that exist throughout the drive. How about copying the fixed superblock with dd(1)? Something like this: dd if=/dev/ad0s1d of=/tmp/sb skip=32 count=16 dd if=/tmp/sb of=/dev/ad0s1d seek=16 count=16 fsck /dev/ad0s1d Those commands are just off the top of my head -- I haven't tested it, no guarantees, you're doing it at your own risk and you should have a backup. Best regards Oliver Thanks, this did the trick. The only odd thing I could say is that newfs -N didn't list 32 as a superblock(fsck told me it was the one being used), I first tried 92640 which was listed after 144. The 32 block worked and the others didn't.. odd.. Thanks a million =) -Darren __________________________________ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/
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