Crypt-Setup-Problem

Booting from grml works:
-------------------------

cryptsetup luksOpen /dev/sda2 cryptpv

vgchange -ay
mount /dev/system_vg/root_lv /mnt/
mount /dev/sda1 /mnt/boot/
mount /dev/system_vg/var_lv /mnt/var/
mount /dev/system_vg/opt_lv /mnt/opt/

mount -t proc none /mnt/proc
mount -t sysfs none /mnt/sys
mount --rbind /dev /mnt/dev

chroot /mnt /bin/bash

Things done:
------------

root@grml:/# dpkg -l | grep crypt | awk '{print $2;}'
cryptsetup-bin
duplicity
gcr
libcrypt-passwdmd5-perl
libcryptsetup4
libgcrypt11:amd64
libgcrypt11:i386
libhcrypto4-heimdal:amd64
libhcrypto4-heimdal:i386
libk5crypto3:amd64
libk5crypto3:i386
libmhash2
libnettle4:amd64

root@grml:/# cat /etc/crypttab
pvcrypt		UUID=5def9ccb-9158-4849-b024-3ce238347dde	none	luks

root@grml:/# cat /etc/initramfs-tools/modules
dm-crypt
dm-mod
sha256
aes_x86_64
aes_generic
aes
cbc
sha256_generic
aesni_intel
aes
aes_i586
aes_x86_64
aes_generic
dm-crypt
dm-mod
sha256
sha256_generic
lrw
xts
crypto_blkcipher
gf128mul

root@grml:/# cat /etc/initramfs-tools/conf.d/cryptroot
CRYPTROOT=target=cryptpv,source=/dev/disk/by-uuid/5def9ccb-9158-4849-b024-3ce238347dde

root@grml:/# cat /etc/default/grub | grep GRUB_CMDLINE_LINUX_DEFAULT
GRUB_CMDLINE_LINUX_DEFAULT="kopt=root=/dev/mapper/system_vg-root_lv cryptopts=target=cryptpv,source=/dev/disk/by-uuid/5def9ccb-9158-4849-b024-3ce238347dde,lvm=system_vg pci=nomsi noapic irqpoll"

update-initramfs -u -k all
update-grub