[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
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



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,

More information about the linux mailing list