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
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