After upgrade from 10.04 to 12.04, I cannot boot with linux 3.2.0-24-generic-pae: process gets frozen in a xubuntu initialization screen (I had qimo installed).

If I try the recovery mode (with the same Linux version), booting freezes after this message:

Begin: Mounting root file system.

If in grub menu I choose Previous Linux versions, I can boot using Linux 2.6.32-41-generic-pae. But once logged in, some things don't seem to work (apt-get update fails, update manager fails, HID menu does not provide suggestions...) (to be honest, I have no idea whether this is part of the bigger issue)

Reading in Ask Ubuntu through apparently similar problems, I decided to follow some advices: got boot-repair and run it. The problem remains & I got this report.

I also run as root in terminal

$ sudo update-initramfs -u

and this is what I got:

update-initramfs: Generating /boot/initrd.img-3.2.0-24-generic-pae

cryptsetup: WARNING: failed to detect canonical device of /dev/sda1

cryptsetup: WARNING: could not determine root device from /etc/fstab

/tmp/mkinitramfs_EIDlHy/scripts/classmate-bottom/45xconfig: 9: .: Can't open /scripts/casper-functions

What else? My pc is Intel® Core™ i7 CPU 870 @ 2.93GHz × 8, graphs is GeForce 8400 GS/PCIe/SSE2, memory is 7,8 GiB.

I have two questions: Is this a bug in the newest kernel I should report? Is there anything I can do appart from a fresh install?