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Re: What does GRUB2 do when there's nothing to do?
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From: |
Andrei Borzenkov |
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Subject: |
Re: What does GRUB2 do when there's nothing to do? |
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Date: |
Sun, 28 Nov 2021 18:48:57 +0300 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 |
On 28.11.2021 12:56, Philip Rowlands wrote:
> When testing with many different kernels installed, I often interrupt the
> menu timeout then make a cup of tea, or become otherwise distracted.
>
> When this happens, GRUB2 is waiting for keyboard input but also appears to be
> consuming power, judging by the way the fans speed up. (Optiplex 7090, if it
> makes a difference.)
>
> Is there any config around polling / power saving, or any interactive
> commands which would show relevant settings? In Linux I'd be looking at
> P-states and C-states, but options are limited from the bootloader.
>
grub busy loops waiting for keyboard input, so there is not much that can be
done here.