I dual boot Arch Linux and Ubuntu. I have the following partition setup:
sda1 is where Ubuntu is installed, Arch on
New Partition #2 is the proposed /boot.
sda4 is a common home for both the OS.
The grub was installed by Arch. I would like to create a separate /boot partition for encrypting the root filesystems of both the OSes.
I am following this guide on Community Wiki, and have a few questions.
The guide is written for 10.04 and does not mention anything about dual booting. Will it still work? I already have 500 MB of unallocated free space which I can use for /boot. Then why should I use the live disk? Can't I do everything from my current Ubtunu installation?
This is what I understand. /boot partition can't be shared between operating systems. Since I require /boot for my Arch, I should copy the contents of /boot from Arch to the newly created /boot from Ubuntu. Now I can reboot to Arch. Then I should change the fstab of arch to mount the new /boot. Then I install GRUB on the /boot partition from Arch. Should I make any changes to Ubuntu's fstab? Will this break Ubuntu?
If what intend to do is wrong, how do I do this?