Re: incorrect super block

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Mon, Jul 20, 2015 at 11:03:52AM +0200, Martin Husemann wrote:
> On Mon, Jul 20, 2015 at 09:57:26AM +0100, Patrick Welche wrote:
> > # mount /home
> > mount_ffs: /dev/raid2a on /home: incorrect super block
> 
> No kernel error message here? Is it FFSv1 or FFSv2?

Ah yes - this was ssh'ing in:

ERROR: cylinder group size mismatch: fs_cgsize = 0x4800, fs->fs_cgsize = 0x4000, CGSIZE(fs) = 0x4003

file system: /dev/rraid2a
format  FFSv1
endian  little-endian
magic   11954           time    Mon Jul 20 00:22:02 2015
superblock location     8192    id      [ 50310125 72060166 ]
cylgrp  dynamic inodes  4.4BSD  sblock  FFSv2   fslevel 4
nbfree  6056408 ndir    337     nifree  12183035        nffree  140
ncg     523     size    49288608        blocks  48518739
bsize   16384   shift   14      mask    0xffffc000
fsize   2048    shift   11      mask    0xfffff800
frag    8       shift   3       fsbtodb 2
bpg     11798   fpg     94384   ipg     23296
...

> I'd expect something like:
> 
> 	http://www.netbsd.org/docs/ffsv1badsuperblock.html
> 
> or the "not off by one" variant of it (which has no good explanation
> so far).
> 
> > Either mount is confused, or fsck missed something?
> 
> The kernel checks got tightened a bit, fsck might need an equivalent update.

OK - updating userland...

Thanks,

Patrick