Am 04.05.2015 um 13:19 schrieb Paul Cartwright:
mmm, well if it has already been installed , why would you ever have to
run grub-2-install again?? all you would have to do is modify the
grub.cfg whenever you add a new kernel.. I guess the only way to test
would be to add/remove a kernel, then JUST run grub2-mkconfig, reboot &
see if the changes were updated..
or am I missing the point..
Usually, I don't have to fiddle with grub. The cases I remember were
when I had repaired windows installations (in a dual boot situation)
which refused to boot. By restoring the windows boot mechanism via the
rescue console, the MBR had been overwritten, and I had to re-install
grub to get back dual booting; and I did that in the order I had
mentioned: grub2-install first, then grub2-mkconfig. Perhaps the
reversed order might work as well in this use case, but I never tried that.
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