[clug] Can't mount an encrupted backup file system
jhock
jhock at iinet.net.au
Fri Jun 1 23:39:23 MDT 2012
Hi Peter,
Thanks for the prompt reply. On my old eeePC the command sudo
cryptsetup
status /dev/mapper/udisks-luks-uuid-1976166a-f4d3-4709-82d4-2e8ad975bcf9-uid1000
gives the output:
/dev/mapper//dev/mapper/udisks-luks-uuid-1976166a-f4d3-4709-82d4-2e8ad975bcf9-uid1000 is active:
cipher: aes-cbc-essiv:sha256
keysize: 128 bits
device: /dev/sdb1
offset: 1032 sectors
size: 1953518970 sectors
mode: read/write
I don't know how to get the details of the backup device when it won't
mount.
Thanks.
John
On Sat, 2012-06-02 at 13:19 +1000, Peter Barker wrote:
> On Sat, 2 Jun 2012, jhock wrote:
>
> > - Load Ubuntu 10.4 from USB iso file
> >
> > Everything worked just nicely up to this point. I then plugged in the 1
>
> You might check the type of encryption used; the default changed at some
> stage. If you're changing ubuntu versions, this might be the cause...
>
> Can't see why this would affect getting the key, but....
>
> The default *was* aes-cbc-plain
>
> Here's a snippet from my offsite-backup script:
>
> cryptsetup create -c aes-cbc-plain -y $cryptname $devicename
>
> > Jhock
>
> Yours,
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