Comment 0 for bug 653134

Test upgrade from 10.04.1 to 10.10:
1. Install Wubi Desktop AMD64 10.04.1
2. apt-get update; apt-get dist-upgrade
3. Restart
4. update-manager -d
5. Upgrade to 10.10
6. Restart

Select 'Ubuntu' in the NTLoader menu

Result:
The following lines are printed on the screen:
  error: unknown command 'loadfont'
 error: file not found.
 error: file not found.
 error: file not found.
 error: file not found.
 error: file not found.
 error: unknown terminal 'gfxterm'
 .
 error: file not found

 then the system restarts (soft reset)

The resulting root.disk can't be mounted the FS is not recognized.