mkfs.ext3 /dev/sdb1
mkswap /dev/sdb2

mkdir /mnt/quelle && mount /dev/sda1 /mnt/quelle
mkdir /mnt/ziel && mount /dev/sdb1 /mnt/ziel
rsync -avH --progress /mnt/quelle/ /mnt/ziel/

grub-install --root-directory=/mnt/ziel /dev/sdb

root@debian:~# blkid
/dev/sda1: UUID="d440dc07-d8a5-4c12-b6a5-0678dae3be7e" TYPE="ext3"
/dev/sda5: UUID="99029539-cb3d-4724-8534-6e2666b34e06" TYPE="swap"
/dev/sdb1: UUID="3b2ce02a-01a4-4612-8735-cfcafab9a4ea" TYPE="ext3"
/dev/sdb2: UUID="223eb52b-5e0a-4f14-9458-5c6a9cd9d4d3" TYPE="swap"

# /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
# / was on /dev/sdb1 during installation
UUID=3b2ce02a-01a4-4612-8735-cfcafab9a4ea /               ext3    errors=remount-ro 0       1
# swap was on /dev/sdb2 during installation
UUID=223eb52b-5e0a-4f14-9458-5c6a9cd9d4d3 none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto     0       0

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}

function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 3b2ce02a-01a4-4612-8735-cfcafab9a4ea
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 3b2ce02a-01a4-4612-8735-cfcafab9a4ea
set locale_dir=($root)/boot/grub/locale
set lang=de
insmod gettext
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-686' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 3b2ce02a-01a4-4612-8735-cfcafab9a4ea
echo    'Loading Linux 2.6.32-5-686 ...'
linux    /boot/vmlinuz-2.6.32-5-686 root=UUID=3b2ce02a-01a4-4612-8735-cfcafab9a4ea ro  quiet
echo    'Loading initial ramdisk ...'
initrd    /boot/initrd.img-2.6.32-5-686
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-686 (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 3b2ce02a-01a4-4612-8735-cfcafab9a4ea
echo    'Loading Linux 2.6.32-5-686 ...'
linux    /boot/vmlinuz-2.6.32-5-686 root=UUID=3b2ce02a-01a4-4612-8735-cfcafab9a4ea ro single
echo    'Loading initial ramdisk ...'
initrd    /boot/initrd.img-2.6.32-5-686
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###