check disk integrity

[Bob]

** Reply to message from Nils Kassube <kassube at gmx.net> on Wed, 22 Apr 2015
07:26:39 +0200

> Bob wrote:
> > It appears fsck will not work in this case.
> 
> > bob1 at Jupiter:~$ sudo fsck -t fat32 /dev/sdb5
> > fsck from util-linux 2.25.1
> > fsck.fat 3.0.26 (2014-03-07)
> > 0x41: Dirty bit is set. Fs was not properly unmounted and some data
> > may be corrupt.
> > 1) Remove dirty bit
> > 2) No action
> > ? 1
> 
> > Reclaimed 25 unused clusters (204800 bytes).
> > Free cluster summary wrong (1274821 vs. really 1274846)
> > 1) Correct
> > 2) Don't correct
> > ? 1
> > Leaving filesystem unchanged.
> > /dev/sdb5: 6 files, 6/1274852 clusters
> 
> From "man fsck.fat:
> | Note: If -a and -r are absent, the filesystem is only checked, but not
> | repaired.

I guess I did not read the man page close enough the first time, that did not
register with me.


> So it seems you should run the command with one of the options mentioned 
> above.

Added the -a switch and it cleaned up the errors.

Thanks


> Other than that, you could grab your old Windows machine and use the 
> checkdisk option of Windows.

Maybe.  I don't know if Windows in a virtual box would be able to do it.

-- 
Robert Blair