system crash after partial upgrade 10.10

[Yohai]

Hi all.

I have a Dell studio running ubuntu for two years now (I'm a semi-newbie).
I had ubuntu 10.04, but a few days ago, the update manager started to bug me that some stuff don't work properly and that I need to to a partial upgrade. I postponed that for a while, and all worked fine, but I finally had sometime and clicked "yes", all began collapsing:

1) the update manager crashed while updating.
2) I rebooted and ran it again. same crash at the same stage.
3) I decided, god knows why, to do a full upgrade to 10.10, which also crasehd.

Now it won't even boot. It always get stuck at a line saying
"no IPv6 routers present"
or something of that sort.
when I switch off manually the wireless switch on the laptop, the boot gets stuck a bit earlier, on a line that says:
"laptop login:"

any ideas?


please save me!
thanks,
yohai

EDIT: I just remembered something which might be important: I had a hibernation problem on the upgrade to 10.04, so I played around a bit with that. now it uses libgcrypt, and I remember I set up something manually then, but I can't remember what.

[mörgæs]

Partial upgrades are dangerous:
http://ubuntuforums.org/showthread.php?t=1641400

How does the machine run in a 10.10 live boot?

[Yohai]

yes, but only in recovery mode.
when I try to load other kernels, it gets stuck.

I think I'm gonna simply boot from a cd and reinstall ubuntu, deleting the partition.
(I backed up the files)

seems reasonable?

[mörgæs]

Yes, I was going to suggest the same.
Remember to have wired internet access while installing.