Tak možná funkční návod - zatím neověřeno.

http://ubuntuforums.org/showthread.php?p=a35bb947b 3593e4557135380109a40d7&p=4786419&postcount=10

I know I'm a little late to the party, but I have the following setup to allow for encryption with dual boot and both Vista and Hardy encrypted

sda1: Windows Vista encrypted with TC5
sda2: Ubuntu Hardy Heron /boot partition (not encrypted)
sda3: Ubuntu Hardy Heron encrypted volume with LVM inside and / and swap partions within LVM (to save partitions used overall incase it gets over 5 partitions)
sda4: Working on installing OSX Leopard on this partition currently.

The steps I used are as follows, in brief:
1) Installed Vista first (actually pre-installed on laptop)

2) Installed Ubuntu second using encrypted physical volume with LVM inside it and 2 partions / and swap inside the LVM(at this point, grub was in the MBR)

3) Ran full windows system encryption (not full disk encryption) through TC5 and let it write its bootloader to the MBR. (obviously overwriting Grub in the MBR)

4) Booted with a live cd and copied the truecrypt bootloader from the MBR to a file in the /boot partition (sda2)
use these commands to do so:
dd if=/dev/sda of=/mnt/boot/truecrypt.mbr count=1 bs=512
dd if=/dev/sda of=/mnt/boot/truecrypt.backup count=8 bs=32256

5)Reinstalled grub to the MBR using these commands:
sudo grub
install (hd0,1)/grub/stage1 (hd0) (hd0,1)/grub/stage2 0x8000 p

6) Added a chainloader to the menu.lst Vista entry to point to the truecrypt bootloader within the /boot partition like so:

title Windows Vista/Longhorn
rootnoverify (hd0,0)
makeactive
chainloader (hd0,1)/truecrypt.mbr
boot

The only partition not encrypted in the /boot partition so far, which is fine. After grub loads, no matter which OS I choose, I enter a passphrase and that OS starts.

For more detailed instructions which I pulled from but which are for XP instead of Vista, use this link:

http://ubuntuforums.org/showthread.php?t=761530

http://keitin.net/jarpatus/articles/dcpp_grub/inde x_eng.shtml

http://webcache.googleusercontent.com/search?q=cac he:uu8WQECF6w0J:grub4dos.sourceforge.net/wiki/inde x.php/Mr+Mr+-+Grub4Dos+Wiki&cd=1&hl=cs&ct=clnk&gl= cz&source=www.google.cz