fsck -b 32 no updating Standard Superblock
Tilman Linneweh
tilman at arved.de
Sun Oct 26 04:57:30 PST 2003
* Tilman Linneweh [So, 26 Okt 2003 at 01:51 GMT]:
> I managed to trash my superblocks. When I try fsck -b 32 everything goes well,
> but the original superblock is not updated:
>
> sauna# fsck /dev/ad0s1e
> ** /dev/ad0s1e
> Cannot find file system superblock
>
> LOOK FOR ALTERNATE SUPERBLOCKS? [yn] y
>
> USING ALTERNATE SUPERBLOCK AT 32
> ** Last Mounted on
> ** Phase 1 - Check Blocks and Sizes
> ** Phase 2 - Check Pathnames
> ** Phase 3 - Check Connectivity
> ** Phase 4 - Check Reference Counts
> ** Phase 5 - Check Cyl groups
> 96 files, 188 used, 128811 free (75 frags, 16092 blocks, 0.1% fragmentation)
> sauna#
>
> According to Google there should be a Question
>
> UPDATE STANDARD SUPERBLOCK? [yn]
>
> but there isn't. what is going wrong?
It looks like this functionality was removed in 5.x the solution was:
dd if=<disk> skip=32 of=<disk> seek=16 bs=512 count=16
regards
tilman
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