geli recovery

[Ivan Voras]

On 01/21/10 12:44, BSD Life wrote:
> Since I didn't get a response on -stable yet, I ask here again.
>
> I put my WD5000AACS in my Windows PC and did a SMART drive quick self-test
> with the WD utility (Data Lifeguard Diagnostic for Windows) to check my
> drive because of the recently discussed Load/Reload Cycle problem.
> No data was written to the drive. I put it back to my FreeBSD box
> (8.0-Stable) and I I am not able to decrypt it anymore with geli.
> It keeps telling: # geli attach -k /etc/keys/keyfile /dev/ada0
> geli: Cannot read metadata from /dev/ada0: Invalid argument.
>
> A geli backup command failed with:
> geli: MD5 hash mismatch: not a geli provider?
>
> I think Windows has messed up something on my disk, but a fdisk dump looks
> still the same as before:
> # fdisk /dev/ada0
> ******* Working on device /dev/ada0 *******
> parameters extracted from in-core disklabel are:
> cylinders=969021 heads=16 sectors/track=63 (1008 blks/cyl)
>
> Figures below won't work with BIOS for partitions not in cyl 1
> parameters to be used for BIOS calculations are:
> cylinders=969021 heads=16 sectors/track=63 (1008 blks/cyl)
>
> fdisk: invalid fdisk partition table found

Was there ever a partition table on the drive?

> Media sector size is 512
> Warning: BIOS sector numbering starts with sector 1
> Information from DOS bootblock is:
> The data for partition 1 is:
> sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
> start 63, size 976773105 (476939 Meg), flag 80 (active)
> beg: cyl 0/ head 1/ sector 1;
> end: cyl 316/ head 15/ sector 63
> The data for partition 2 is:
> <UNUSED>
> The data for partition 3 is:
> <UNUSED>
> The data for partition 4 is:
> <UNUSED>
>
> Are there any things I could try or is all my data gone?

You could read the last sector of the disk and send it here for 
inspection (pass it through 'hd').