Dual-boot with pre-boot authentication

tux_tina

I'm unsure if this is possible in terms of a software solution, but what I would like to be able to do is require pre-boot authentication with full-disk encryption on a dual-boot system (Linux + Windows). My partition layout is as follows Xubuntu Swap Windows XP NTFS for files I haven't been able to find a solution, so I figured I'd give it a shot and ask here.

Originally asked by Elle H on Stack Exchange (superuser) (CC BY-SA 2.5).

uphilltech

Great question — answering as the UphillTech team:

HOWTO: Set up Full Disk Encryption in a Dual Boot System . (Using Truecrypt, Ubuntu+Windows) TrueCrypt leaves behind a string in its boot loader that identifies it as a TrueCrypt boot loader. You can change this with some fiddling: Modify Truecrypt encryption boot loader strings . Note that even with full disk encryption someone can still access the data if they have physical access to the PC within a few minutes of it being powered off: Cold boot attacks on encrypted partitions . (Freeze ram, remove from pc, read key!)

Full answer by RJFalconer: https://superuser.stackexchange.com/a/89775 (CC BY-SA 2.5).

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