Slow Grub on new mobo Q
G.Wolfe Woodbury
ggw at wolves.durham.nc.us
Thu Oct 2 06:30:59 UTC 2008
Gene Heskett wrote:
> Thanks. But this still does not explain why grub itself is so slow.
>
> After the bios is done, then the next thing one normally sees is the "Grub
> stage 2 loading", but I'm watching a monitor telling me there is no input
> drive for about 12 seconds between the bios clearing the screen, and that
> printout.
>
> And normally that just sort of flickers for a few milliseconds, but that now
> stays on screen for 2 or 3 seconds, then the screen is cleared again, and
> about 10 seconds later the boot choice menu finally pops up. This only took
> maybe 2 seconds total on the old motherboard, now it's a good 20-25 seconds
> from the bios clearing the screen to the boot selection menu.
>
> Its that time that I'm fussing about.
>
Are you running on an x86_64 platform?
On my 64-bit machine, grub is running in 32-bit mode and it takes a fair
bit of time for the POST to GRUB transition, just like you describe.
My theory is that it is taking time to mode-switch from 64-bit to 32-bit
mode and then back.
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