If you, like me, prefer to use Ubuntu on any hardware you use, and want it completely encrypted, this is for you.
These are instructions on how to install Ubuntu 14.04 or later with full disk encryption, alongside MacOSX on a MacBook Pro.
This has been specifically tested on a MacBook Pro 10,1 (mid 2012) with the following OS combinations:
- Ubuntu GNOME 15.10 (Wily), alongside OSX 10.11 (El Capitan)
- Ubuntu 14.10 (Utopic), alongside OSX 10.10 (Yosemite)
- Ubuntu 14.10 (Utopic), alongside OSX 10.9 (Mavericks)
- Ubuntu 14.04 LTS (Trusty), alongside OSX 10.10 (Yosemite)
- Ubuntu 14.04 LTS (Trusty), alongside OSX 10.9 (Mavericks)
It should work the same on many more Apple computers and OS versions.
With much help from this: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1237556
Preparations in OSX
Boot up your existing OSX and run Disk Utility.
Resize your existing OSX partition to make room for Ubuntu. Leave as much space as you want for Ubuntu, including your RAM size for swap. Remember that OSX counts gigabytes the way hard drive manufacturers do, and I and Ubuntu count the way computers do :) So make up to 10 % more room than it looks like you’ll get, to be on the safe side.
Encrypt OSX (recommended)
If you want your shrunken OSX partition encrypted too, do that now with File Vault in System Preferences. If you try it after having installed Ubuntu alongside, File Vault will probably not let you. Let it finish encrypting and optimizing. Then reboot to check that everything is in order so far.
Create bootable USB
Create an Ubuntu install USB using a 64bit image of your choice. Official instructions: How to create a bootable USB stick on OS X. Most Ubuntu images can be downloaded from cdimage.ubuntu.com. I prefer the latest release of Ubuntu GNOME.
Preparations in Ubuntu
Boot up the Ubuntu install USB.
gparted and create one small partition with ext4 labelled
/boot. Create another large one, for encryption.
Lets say the boot partition happens to be
/dev/sda4 and the large encryption partition is
In a terminal, issue these commands:
sudo cryptsetup luksFormat /dev/sda5 sudo cryptsetup luksOpen /dev/sda5 the_encrypted_stuff sudo pvcreate /dev/mapper/the_encrypted_stuff sudo vgcreate VG-encrypted /dev/mapper/the_encrypted_stuff sudo lvcreate --name LV-swap --size 16G VG-encrypted # Or however much RAM you have sudo vgdisplay VG-encrypted # Take note of available number of free extents sudo lvcreate --name LV-root --extents ... VG-encrypted # Using number of free extents instead of ...
Start the installer.
When it asks about erasing installations, installing alongside, or something else, choose “Something else”.
/boot, the encrypted
/, and the encrypted
LV-swap for swap.
When the installation is finished, DO NOT CLICK Continue, and DO NOT CLICK Reboot!
In a terminal, issue these commands:
sudo blkid | grep ^/dev/sda5 # Take note of the UUID="..." string for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /target$i; done sudo chroot /target echo the_encrypted_stuff UUID=... none luks > /etc/crypttab # Using the UUID from above instead of ... update-initramfs -u -k all lsinitramfs /boot/initrd* | grep cryptsetup
You should see that
cryptsetup is indeed included in the initrd image you just built.
Leave the chroot:
To enable dual-boot, you can install
sudo apt-add-repository ppa:rodsmith/refind sudo apt-get update sudo apt-get install -y efibootmgr refind
This should get your hard drive (SSD?!) set up for letting you choose operating system on boot.
Go ahead; reboot and enjoy!
You might want to check out my ubuntu-install-scripts to get off to a running start, once you’re inside your new Ubuntu installation.