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Re: GRUB2 Enable Debug Messages
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From: |
Andrei Borzenkov |
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Subject: |
Re: GRUB2 Enable Debug Messages |
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Date: |
Thu, 30 Jun 2016 20:24:33 +0300 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 |
30.06.2016 01:11, ARMANDO FERREIRA LEE ENG пишет:
> Hi All,
>
>
> Is there a way to enable some debug messages of GRUB2? I don't mean
> Kernel Debug Messages, what I want is the GRUB2 Bootloader Messages.
> This for some firmware debugging purpose. :)
>
set debug=foo,bar,baz
where "foo", "bar", "baz" are tags for which you want to enable debug
output or
set debug=all
to enable everything. You can also do
grub-install --debug-image=all
to set it from the earliest point in time possible.
You will need to check sources (look for grub_dprintf) to find out what
tags are in use.