fsck never executed because of pass=0 in fstab

[Gilles Schintgen]

At boottime fsck is *never* executed, not even when the previous shutdown was unclean.

I'm running Ubuntu Netbook Remix 1.0.1 on a Lenovo Ideapad S10e and tracked this issue down to a "pass" value of 0 for the root device in /etc/fstab. I installed my system from the Canonical-provided .img file located here:
http://oem-images.canonical.com/unr/unr-1.0.1.img. This is how my /etc/fstab looked before I fixed it:
/dev/sda1 / ext3 defaults 0 0
proc /proc proc defaults 0 0
(The fix is to change "0 0" in the first line to "0 1", see "man fstab".)

This is a serious issue since it endangers users' data. (Especially when running on an Ideapad which often locks up due to bug #292450)