I'm dual booting Ubuntu and Windows, with limited free space on my Ubuntu partition. I noticed the large number of kernels piling up in my grub boot menu and decided that would be a good place to free up some hard drive space. I opened Synaptic, searched for linux-image, and found two old kernels and deleted them. I still, however, have 4 more kernel entries in my boot.lst (plus the recovery mode for each), but I can't seem to find these to delete them. My boot.lst is being regenerated, so somewhere in that script, it is finding evidence of these kernels, but synaptic can't find them.
Any ideas how to find and delete these?