grub2 bug:newly installed kernel 3.2.10 was not listed on the top

[oliveryty]

To whomever concerned,

As the title shows, after I upgraded the system and installed the new 
kernel, I rebooted the system to find that the kernel 3.2.10 was listed 
at the top (at that time), without the recovery mode. So after I logged 
in the system I deleted the oldest kernel, the kernel 3.0.x. (Also the 
formerly setting of windows as the default booting system was omitted 
too, I have to set it again.) I ran the command "grub2-mkconfig -o 
/boot/grub2/grub.cfg" in the terminal. After I rebooted the system, it 
turned out to be the kernel 3.2.9 on the top of the list. It should be 
the newest kernel 3.2.10 on the top....

1. the newest kernel should be on the most top, but it was not;
2. newly installed kernel should have a recovery mode entry below, but 
it didn't have;
3. the oldest kernel should be not showed on the grub menu, but it showed.

I know grub2 is new to fedora but I sincerely hope it can be better. 
That's why I wrote you this mail.

Sincerely yours

Oliver