why I can not use the 3.2 kernel

[Tom H]

On Mon, Nov 19, 2012 at 8:56 AM, Chen Liang <slimhigh at gmail.com> wrote:
> 2012/11/19 Tom H <tomh0665 at gmail.com>
>> >
>> > The picture clearly shows that it'd grub2 (grub 1.99-12ubuntu5) that's
>> > controlling your boot through "boot/grub/grub.cfg" and not grub1. So the
>> > "menu.lst" that you're generating with "update-grub" has no influence on
>> > your boot menu.

"update-grub2", although, as Colin suggested, re-installing
grub-common should fix update-grub.