Comment 63 for bug 950295

And to confirm it is your fix, as a control, I then upgraded and found the live -23.36 kernel which is in the repositories ..

root@tecumseh:~# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
  linux-headers-3.2.0-23 linux-headers-3.2.0-23-generic-pae
  linux-image-3.2.0-23-generic-pae sessioninstaller
4 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 50.2 MB of archives.
After this operation, 181 kB of additional disk space will be used.
Do you want to continue [Y/n]?

[snip]

Preparing to replace linux-image-3.2.0-23-generic-pae 3.2.0-23.36~lp950295v201204241909 (using .../linux-image-3.2.0-23-generic-pae_3.2.0-23.36_i386.deb) ...
Done.
Unpacking replacement linux-image-3.2.0-23-generic-pae ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-23-generic-pae /boot/vmlinuz-3.2.0-23-generic-pae
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-23-generic-pae /boot/vmlinuz-3.2.0-23-generic-pae
Preparing to replace linux-headers-3.2.0-23 3.2.0-23.36~lp950295v201204241909 (using .../linux-headers-3.2.0-23_3.2.0-23.36_all.deb) ...
Unpacking replacement linux-headers-3.2.0-23 ...
Preparing to replace linux-headers-3.2.0-23-generic-pae 3.2.0-23.36~lp950295v201204241909 (using .../linux-headers-3.2.0-23-generic-pae_3.2.0-23.36_i386.deb) ...
Unpacking replacement linux-headers-3.2.0-23-generic-pae ...
Preparing to replace sessioninstaller 0.20+bzr123-0ubuntu2 (using .../sessioninstaller_0.20+bzr128-0ubuntu1_all.deb) ...
Unpacking replacement sessioninstaller ...

[snip]

.. rebooted, and it hung.

I'm running here with the workaround.

ben@tecumseh:~$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.2.0-23-generic-pae root=UUID=ec1fde3e-cf25-49df-a729-b4e2b01281eb ro b43.blacklist=yes
ben@tecumseh:~$ lsmod | grep b43
ben@tecumseh:~$