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I have a dual-boot laptop with four partitions - Windows, swap, Ubuntu (OS) andUbuntu /home. I need to do full disk encryption on it. Ubuntu is running 12.04, Windows is Windows 7 Home Premium.

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There's some relevant discussion over on security: security.stackexchange.com/questions/14227/… –  andrewsomething Mar 17 at 14:30
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up vote 4 down vote accepted

I don't see how to avoid to handle Windows and Ubuntu separately using software.

Alternatively, get yourself an expensive Self Encrypting Hard Drive unlocked by your BIOS at boot time, if supported. This way, no configuration is required by your OS and all processing (encrypting/decrypting) is done by the hard drive instead of your CPU.

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I ended up just doing FDE for the whole drive, and virtualizing my Windows box. –  jrg Dec 27 '12 at 11:54
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