grub2

[Klaus-Peter Schrage]

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.