Package: cryptsetup
Version: 2:1.0.6+20090405.svn49-1
Severity: normal
Hi,
I just lost 1.5TB data because I accidentally installed grub over the
LUKS superblock and there seems to be no way to restore it.
I'm missing 2 things:
1) an on disk backup of the superblock
That would not only help with accidental overwrites but also if a
block gets damages on the disk.
It might also be a good idea to move the superblock 4k or 64k from
the start of the device so a mbr/bootloader does not overwrite the
superblock.
2) cryptsetup luksBackup and luksRestore command
There should be a command to dump the superblock of a luks volume
into a file for backup purposes and one to restore it from a file.
cryptsetup could even automatically store a backup on every change
like lvm does.
MfG
Goswin
-- System Information:
Debian Release: squeeze/sid
APT prefers transitional
APT policy: (500, 'transitional'), (500, 'unstable'), (400, 'unstable-i386'),
(1, 'experimental-i386'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.29.4-frosties-1
Locale: LANG=C, LC_CTYPE=de_DE (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash
Versions of packages cryptsetup depends on:
ii dmsetup 2:1.02.30-3 The Linux Kernel Device Mapper use
ii libc6 2.9-12 GNU C Library: Shared libraries
ii libdevmapper1.02.1 2:1.02.30-3 The Linux Kernel Device Mapper use
ii libpopt0 1.14-4 lib for parsing cmdline parameters
ii libuuid1 1.41.6-1 Universally Unique ID library
cryptsetup recommends no packages.
Versions of packages cryptsetup suggests:
ii dosfstools 3.0.3-1 utilities for making and checking
ii initramfs-tools [linux-initra 0.93.3 tools for generating an initramfs
ii udev 0.141-1 /dev/ and hotplug management daemo
-- no debconf information
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