Affected x64 RC1 and affects x64 final release.
After a fresh install all runs smoothly, on reboot grub works dual booting mine windows 7 x64. The problem is: after the first ubuntu sistem update, (done using the update assistent without further customizations, with an download of ~174 MB) upon reboot I get to grub minimal bash, unable to boot both ubuntu and windows. I'm running a HP Pavillion Dv4 notebook. Mine HD has 6 partitions: 3 for windows and 3 for ubuntu (reiserfs for root, ext4 for /home and swap).
Tried grub recovery procedure from livecd as described in < https://wiki.ubuntu.com/Grub2#Recover > with no sucess
the only message I get when trying to boot is:
[ Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists possible device/file completions. ]