I switched my OS from Windows to Ubuntu. On my Windows system I had my whole laptop encrypted so no one could access anything without the correct password. Now I have Ubuntu and TrueCrypt won't let me encrypt my whole system. I considered encrypting my whole C drive, but that wouldn't work, would it?
What are the Linux alternatives for full system encryption like the Windows version of TrueCrypt has to offer?
Answer
If you truly want full disk encryption, you will need to install from the Ubuntu Server or Ubuntu Alternate installer. In the partitioning section, you can select full disk encryption, using LVM, dmcrypt, and LUKS.
However, the Ubuntu Desktop graphical installer supports total encryption of your entire home directory by clicking a single checkbox. When you select your username and password, you'll have an option to "require a password to login and access your home directory contents." This is a very easy, seamless approach to cryptographically protecting the private data you store in your home directory.
This is only necessary for Ubuntu Versions <=12.04. Beginning with 12.10, Ubuntu shipped a new option with their graphical installer which allows easy full disk encryption.
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