cobd vs. sda
For current coLinux version you can simple use
sda2 in your coLinux config, so you not need to change the fstab. The mtab mostly you never needs to changed, because this file will by managed by mount command at next boot.
This should work for your environment:
sda1="distro.fs" sda2="swap.fs" (swap.fs is my empty swap file)
-- HenryNe 20:44, October 3, 2009 (UTC)