[Cooker] cooker hd install - installation source incorrect

[Andrej Borsenkow]

After installing cooker (today's mirror, DrakX 510) off HD I got in
/etc/urpmi/urpmi.cfg:

bor@localhost% cat /etc/urpmi/urpmi.cfg
Installation\ CD\ (disk1) /Mandrake/RPMS with ../base/hdlist.cz

This is unusable; I'd expect installation source at /mnt/hd/Mandrake/RPMS
- by default, installation mounted inst. source there.

-andrej