Re: cloning a lvm crypto volume to a bigger disk

[Colin <colintempler@gmail.com>]

On Tue, Jul 5, 2011 at 10:57 AM, Jochen Schulz <ml@well-adjusted.de> wrote:
> Colin:
>>
>> So I have this machine with a lvm crypto volume done with a debian
>> testing install. This is on a disk with 160GB.
>> But now I would like to clone it to a new disk: 500GB.
>> What are my options?
>
> What's the order of the block layers?
>
> - LVM on top of dm-crypt on top of raw device, or
> - dm-crypt on top of LVM on top of raw device

Hi Jochen,
I don't remember the specifics when I did the install but here's what I got:
$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'vol_id --uuid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/mapper/laptop-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda1 during installation
UUID=25835063-4f87-2c8f-b0fb-897d9c6dba93 /boot           ext2
defaults        0       2
/dev/mapper/laptop-home /home           ext4    defaults        0       2
/dev/mapper/laptop-swap none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto     0       0

$ cat /etc/crypttab
#target name      source device   key file        options
sda5_crypt UUID=adaff49c-4719-8a94-8ecd-532ca4b3627c none luks

$ ls -l /dev/mapper
total 0
lrwxrwxrwx 1 root root       7 Jul  4 11:34 laptop-home -> ../dm-3
lrwxrwxrwx 1 root root       7 Jul  4 11:34 laptop-root -> ../dm-1
lrwxrwxrwx 1 root root       7 Jul  4 11:34 laptop-swap -> ../dm-2
crw------- 1 root root 10, 236 Jul  4 11:34 control
lrwxrwxrwx 1 root root       7 Jul  4 11:34 sda5_crypt -> ../dm-0


Hope this helps.
Thanks.

Cheers,
Colin