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I am planning to make my laptop have Windows 7, and Ubuntu. I plan to set up the partitions like so:

/dev/sda1 = windows <p>
/dev/sda2 = ubuntu boot (doesnt have to be encrypted) <p>
/dev/sda3 = ubuntu / <p>

How can I install Ubuntu onto /dev/sda3, and fully encrypt /dev/sda3? (I don't want to simply encrypt my home folder, but rather the / directory due to /apps containing my work)

Does anyone know?

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There are multiple options to set up a partition configuration like this.

Note: I'm only providing the links to the appropriate pages because the procedure is quite long and also since most of the links are Ubuntu Wiki pages.

If a LVM already exists

This can be used if you already have partitions set up.

From Ubuntu Wiki:

With the recipe...the Desktop CD can be used to install Ubuntu on a previously created (optionally encrypted) LVM.

Related Links/Sources:

Installation on a fresh HDD (no partitions or LVM)

This method will:

  1. Perform a minimal server install
  2. Create encrypted partition and copy minimal install to it
  3. Modify grub's menu.lst and fstab

This is like installing Ubuntu first and then encrypting the partitions.

Related Links/Sources:

Encrypting Full Disk (won't be able to install Windows)

When you install Ubuntu, there's a checkbox to Encrypt the new Ubuntu installation for security.

Ubuntu Full Disk Encryption

Ubuntu Full Disk Encryption Key Selection

This is good news not just for Ubuntu users, but for users of all GNU/Linux distributions that are downstream from Ubuntu. The above screenshots come from ubiquity, the simple graphical live CD installer that Canonical developed. Every distribution that uses ubiquity as an installer will soon also make it easy for users to use FDE. The up-and-coming distribution Linux Mint, for example, is based on Ubuntu, but there is currently no simple way to install it with disk encryption.

Related Links/Sources:

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