* RT Patch and EFI
@ 2020-05-26 19:54 Reiner Pröls
2020-05-26 20:10 ` David Runge
0 siblings, 1 reply; 2+ messages in thread
From: Reiner Pröls @ 2020-05-26 19:54 UTC (permalink / raw)
To: linux-rt-users
I tried the last RT patch against a 5.6.10 kernel.
After enabeling the FULL preemption model I'am no longer possible to use
efibootmgr.
The kernel module efivarfs refuses to load - no device ...
Any idea
Reiner
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: RT Patch and EFI
2020-05-26 19:54 RT Patch and EFI Reiner Pröls
@ 2020-05-26 20:10 ` David Runge
0 siblings, 0 replies; 2+ messages in thread
From: David Runge @ 2020-05-26 20:10 UTC (permalink / raw)
To: Reiner Pröls; +Cc: linux-rt-users
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Hi Reiner,
On 2020-05-26 21:54:39 (+0200), Reiner Pröls wrote:
> I tried the last RT patch against a 5.6.10 kernel.
>
> After enabeling the FULL preemption model I'am no longer possible to
> use efibootmgr.
>
> The kernel module efivarfs refuses to load - no device ...
IIRC, efivarfs functionality is disabled by default due to the patchset.
Add the `efi=runtime` kernel parameter and reboot.
Best,
David
--
https://sleepmap.de
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