/run is supposed to be a tmpfs filesystem, listed in /lib/init/fstab, with /var/run a symlink to /run.
The failed upgrade from lucid to precise was a bug which ideally we would figure out. I'm not sure how your issues with /run came to be, but it may be possible to reproduce it since you gave the detailed steps you took - thanks for that.
Thanks for the information.
/run is supposed to be a tmpfs filesystem, listed in /lib/init/fstab, with /var/run a symlink to /run.
The failed upgrade from lucid to precise was a bug which ideally we would figure out. I'm not sure how your issues with /run came to be, but it may be possible to reproduce it since you gave the detailed steps you took - thanks for that.