Resolving the updating problem of image-generic.

E: /var/cache/apt/archives/linux-image-2.6.24-19-generic_2.6.24-19.36_i386.deb: 无法在安装新的版本前，为“./boot/vmlinuz-2.6.24-19-generic”做一个符号链接备份

sudo rm -fv /boot/initrd.img-2.6.24*.bak
sudo rm -fv /boot/vmlinuz-2.6.24-19-generic
sudo rm -fv /boot/initrd.img-2.6.24-19-generic
sudo rm -fv /boot/config-2.6.24-19-generic
sudo rm -fv /boot//abi-2.6.24-19-generic
sudo rm -fv /boot/System.map-2.6.24-19-generic
即可！
然后就能正确更新