This section is obsolete.
The AFS client gets very unhappy if the partition holding /var/cache/openafs fills up. To ensure that this can't happen, we'll create a 2GB file and mount it there using the loopback device. This gives the openafs client a partition-in-a-file all to itself that no other process can interfere with.
First, create the file:
dd if=/dev/zero of=/var/cache/openafs.ext3 bs=1M count=2K chmod go-rwx /var/cache/openafs.ext3 mke2fs -F /var/cache/openafs.ext3 tune2fs -j -i0 -c0 /var/cache/openafs.ext3
Then mount it.
Then, give our preferences to debconf:
debconf-set-selections <<\EOF openafs-client openafs-client/thiscell string hcoop.net openafs-client openafs-client/thiscell seen true openafs-client openafs-client/dynroot boolean true openafs-client openafs-client/dynroot seen true openafs-client openafs-client/cachesize string 1500000 openafs-client openafs-client/cachesize seen true openafs-client openafs-client/cell-info string openafs-client openafs-client/cell-info seen true openafs-client openafs-client/run-client boolean true openafs-client openafs-client/run-client seen true EOF
Once this is figured out (if all else fails, reboot) you should be able to
/etc/init.d/openafs-client start
Do this and check that /afs shows up.