Ubuntu
update-manager package

  1. Bug #108479
  2. Comment #7

Comment 7 for bug 108479

Revision history for this message
Michael Vogt (mvo) wrote : Re: Distribution Upgrade (to Feisty) fails: coreutils can not be installed

And that path was in your PATH?

I guess the fix here is to setup a standard PATH when runing the upgrade to avoid this kind of behaviour.