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Re: [LUG] System down...

 

On 26/05/16 23:10, Adrian Midgley wrote:
> Did that.
> Two kernels 3 and 4 series.
> Backed out carefully and rebooted.
> 
> Display of only one kernel, same as before, and boot failure as before.
> 
> I need to reinstall GRUB I suspect.


This is getting trickier then, but you can largely follow the same
procedure with an extra reference to this useful page:

https://wiki.debian.org/GrubEFIReinstall

That should sort you out - otherwise, you may need to do some serious
messing around in the UEFI firmware deleting and re-adding EFI
variables. You won't like that much. Reinstalling after *disabling* UEFI
and resorting to old fashioned BIOS mode would probably be preferable at
that stage.

Cheers
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