Date: Fri, 1 Sep 1995 18:27:53 +0200 (MET DST) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: hackers@freebsd.org Subject: A funny superblock! Message-ID: <199509011627.SAA12136@labinfo.iet.unipi.it>
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Today I was trying to recover a 2.0.5 disk that got scrambled after a panic, and found out that both the / and /usr partitions had a bad superblock. Before updating them, I decided to have look with hexdump, and found out that the superblocks on both partitions were "almost" correct, except that they were offset by two bytes on the disk (i.e. useful data started at byte 2 instead of 0). Kind of funny; can someone think of a reason for this ? I tried to resync the superblock, at which point fsck complained that the alternate superblocks contained different information. I gave up and "fsck -b 32 -y" ... Luigi ==================================================================== Luigi Rizzo Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it Universita' di Pisa tel: +39-50-568533 via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 http://www.iet.unipi.it/~luigi/ ====================================================================
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