[gentoo-user] i can't boot gentoo (regarding to "something" corrupted or deleted (?))

[nacho]

Hi there, i have this big big problem:
i tried to emerge openoffice(bin) and i have left without space in the root partition (openoffice installs in /opt which is in the / partition in my case) so emerge stops with an error. Then i rebooted a cupple of times and everything was ok (except that any partition could be mounted, only /boot....rare because kde was "seeing" all partitions (i have: / /var /usr /home /boot)). But then i removed openoffice from /opt (manually, because emerge couldn't install it completly because of the space), so the space-problem get resolved (apparently), i rebooted and  get with this mesagge (aprox. 20 times contiguous):
"/sbin/rc: line 831: schedule_service_startup: command not found
/sbin/rc: line 831: service_started: command not found"
Then i get prompted to login but it doesen't work at all ("login incorrect..")
This error reproduces every time i try to start the system (so i can't start).
what's up here? and the more important:
is there a way to save the system or i have to install everything from scratch?! (have it sense to "re"tar the stage?)
any suggestions welcome...thanks