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Re: How can I debug the grub2.02?

From: Paul Menzel
Subject: Re: How can I debug the grub2.02?
Date: Wed, 22 Aug 2018 12:36:02 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

Dear Sherry,

On 08/22/18 12:20, Sherry Zhang wrote:

> I run into a error while I am testing.  I have found that it is
> normal berfore BIOS using the INT19 . But when the linux OS System is
> booting , I can see the error log. So I doubt the error happens when
> the grub is running. If I want to debug grub, how can I see the
> booting log of the boot.img and core.img?

> For example : Grub-core/kern/main.c grub_boot_time ("After loading
> embedded modules."); How can I see this log?

You can use the serial console. Look into terminal_output. If you run
coreboot, you could also use cbmemc.

Kind regards,


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