[dm-crypt] moving/resizing a dm-crypt partition
sven at whgl.uni-frankfurt.de
Thu Jan 30 17:28:18 CET 2014
potentially you could 'keep' your old luks header and copy it over
(backup+restore) to the new partition, if you plan on keeping masterkey,
Is there a better way? Depends on what you call better?
Imho your plan should be the safest version and that's probably what you
want, esp. if part. 5 has enough space to hold what's on part 6 (So you
would have your data twice just to make sure everythink is okay.
If you want to be safer: Make another backup on an extra storage device
before resizing part5. I am not sure how stable btrfs is.
On Thu, January 30, 2014 17:04, Louis-David Mitterrand wrote:
> My linux system is on a dm-crypt volume with btrfs on /dev/sda6. As I
> just recovered 100GB from windows (/dev/sda5) I'd like to merge 5 and 6
> to have a larger dm-crypt volume. Here is the disk layout:
> 1 2048 2050047 1000.0 MiB 2700 Basic data
> 2 2050048 2582527 260.0 MiB EF00 EFI system
> 3 2582528 4630527 1000.0 MiB 8300 Basic data
> 4 4630528 4892671 128.0 MiB 0C01 Microsoft
> reserved part
> 5 4892672 218167295 101.7 GiB 8300 Basic data
> 6 464865280 1000215182 255.3 GiB 8300 Linux filesystem
> What is the best strategy to acheive that? I'm thinking of booting a
> live cd, creating a new dm-crypt volume on 5, copy the system from 6 to
> 5, remove 6, resize partition 5, cryptfs resize 5, btrfs resize 5.
> Is there a better way?
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> dm-crypt at saout.de
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