Re: LUKS-partition-failed-to-mount

On Fri, Jun 3, 2011 at 4:40 PM, Mervyn Zhang <karboninnov@gmail.com> wrote:

Well, it was at first the debian-installer commands(options in the
text expert mode, I don't know the exact ones):

making /dev/sda5 a ext2, /boot partition and making /dev/sda6 a lvm
one on top of a LUKS crypted partition.

When I was about to boot arch, the grub commands should be:

root (hd0,2)
kernel /vmlinuz26-lts root=/dev/mapper/cryptpool-cryptroot
cryptdevice=/dev/sda4:cryptpv resume=/dev/mapper/cryptpool-cryptswap
ro
initrd /kernel26-lts.img
boot

(where the "cryptpool" is the name of the VG, "cryptpv" is PV)

2011/6/3, Cal Leeming [Simplicity Media Ltd]
<cal.leeming@simplicitymedialtd.co.uk>:

> Please show us the commands you are trying to execute, in order.
>
> On Fri, Jun 3, 2011 at 4:07 PM, Mervyn Zhang <karboninnov@gmail.com> wrote:
>
>> Hi all, I'm a debian newbie who are previously using archlinux. I've a
>> disk with the following layout:
>>
>> sda1 pri - Windows partition;
>> sda3 pri - archlinux /boot
>> sda4 pri - archlinux LUKS partition (with lvm in it, the rest
>> partitions /, /var, swap and most important /home)
>> sda5 logic - debian /boot
>> sda6 logic - debian LUKS partition (with lvm in it, where a base
>> just-installed system lies)
>>
>> My two arch partitions remained untouched during the installation of
>> debian, and no bootloaders was installed since I've already a grub
>> installed in the MBR.
>>
>> But when I tried to boot my arch again, the crypt hook reported that
>>
>> "ERROR:Failed to open encryption mapping: The device /dev/sda4 is not
>> a LUKS volume and the crypto= parameter was not specified."
>>
>> So what can I do now to re-access to at least my data? Thank you VERY
>> MUCH since I forgot to backup them first....
>>
>>
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>>
>