mmmmmm turned out to be really simple.
Carlo, IceCutter.... thanks for input guys. It's much appreciated.
All I had to do was.
1. fdisk /dev/sdl and create new partition. Used entire disk originally so
it was easy.
2. Mount using the cryptsetup and then mount the mapped drive.
So I'm in the clear. Hopefully it does not happen again. Was keen to start
on my mdadm raid5 drives but will hold off on that now untill I know why
this happened?
Take care,
Sean
On 17/02/2008, icecutter@xxxxxxx <icecutter@xxxxxxx> wrote:
>
> Sean
>
> My 2cents - in no particular order.
>
> 1. Since you power-cycled, the chances that your shell history was
> written to disk are low. It may be valuable to scanvenge it anyways and
> find out what partition you Luks'ed.
>
> 2. Your commandline should be (since fdisk reports no partition):
> #> cryptsetup luksDump /dev/sdl
> or
> #> cryptsetup isLuks /dev/sdl
>
> 3. Another possibility could be to go hunt for a partition table on the
> drive. Google is your friend ("lost partition linux").
>
> 4. Luks header lost? Go hunt for it on the disk. Google for "hexdump
> luks header".
>
> YMMV,
> Harald
>
>
>
> Sean Bushby wrote:
> > Hi everyone,
> >
> > I recently created a 1terebyte encrypted drive. I managed to unmount,
> mount
> > and unmount and mount it again no problems.
> >
> > My system needed a reboot but would not reboot or poweroff so I power
> cycled
> > it. I never unmounted the Crypt volume before hand. Once the system
> came
> > back up I cant mount the volume?
> >
> >
> > [root@eve log]# fdisk -l /dev/sdl
> >
> > Disk /dev/sdl: 1000.2 GB, 1000215724032 bytes
> > 255 heads, 63 sectors/track, 121602 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Disk /dev/sdl doesn't contain a valid partition table
> >
> > [root@eve log]# cryptsetup luksDump /dev/sdl1
> > Can't open device: /dev/sdl1
> > Command failed.[root@eve log]# cryptsetup luksDump /dev/sdl
> > /dev/sdl is not a LUKS partition
> > Command failed.
> >
> >
> > Is there anywayu to rebuild the volume? The data must be there just
> it's
> > lost it's header or something?
> >
> > Thanks in advance,
> >
> > Regards
> > Sean
> >
> >
>
