Comment 0 for bug 1174659

I use Full-Disk Encryption. It does not seem possible to set up multiple partitions within the encrypted area through the "Something else" manual partitioner.

It is possible to create a "Physical area for encrypted partitions" (I'm not 100% on the wording), but as far as I can establish, you can only put one partition into that "area" - the "+" button is greyed out once one has been added.

I also have Windows 7 on the machine, so I can't use the automatic set-up. What I wanted to do was set up an encrypted "area" (is this an LVM partition?) that I unlock with a passphrase on boot and then, within that, have my Swap, / and Home partitions.

I managed to get something working by:
1) Choose "Something Else"
2) Add a small ext4 /boot/ partition (I did 500mb, but I think that was too big - I missed this step the first time and it errored out in a horrible way)
3) Make the rest of the free space a "Encrypted physical volume" or whatever it is called at the bottom of the list - this prompts you for a passphrase.
4) This adds a new section at the top of the list of partitions with a default ext4 partition that you can make /
5) Click install and ignore the warnings about no swap space

See also https://answers.launchpad.net/ubuntu/+source/ubiquity/+question/216356 which deals with both this manual partitioning point and also the ability to do this automatically alongside another OS (which is the subject of a separate bug report (Bug #1083038)).