This is what the numbers mean.
The kernel can be custom built.
since I have made the first full updates to ubuntu 8.10, I have noticed that I am now getting the same menu twice over in the dual boot selection that comes up when I boot for the first time.
the only difference that i can see is in what is written in the menus- in the first one it is Ubuntu 8.10, Kernel 2.6.27-9-generic and in the second one it is the same as before except 126.96.36.199-generic. the third one is of course win XP.
I had initially noticed that the only difference between these two Ubuntu boot menus was in the initial log in screen, where the user name and password is to be provided. When I entered the first option, I got the usual Ubuntu orange background with first the user name query and then the password on the next screen. However, when I entered through the second Ubuntu boot menu, I noticed that the background remains black, and I now have to input the user name and password in an average sized dialogue box.
I am not sure as to why I now have these 3 booting menus in my dual boot display, which used to only provide me with 2 menus (one for Ubuntu and the other for XP) before I made my first full update. Please throw some light on this !