Move the line with /dev/hda2 one line down, below /dev/md0, so that the mount order will be correct. What is happening is that /dev/hda2 is mounted on the old /var/lib/share which is part of the / partition and then /dev/md0 is mounted on top of /var/lib,.hiding the mounted /var/lib/share.

Incidentally since /dev/md0 mounts on /var/lib, you are hiding the old /var/lib which might involve some inaccessible disk space. To fix, boot single user, mount just / and then:

mv /var/lib /var/oldlib
mkdir /var/lib

Then reboot and you can decide what to do with /var/oldlib.