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Re: Boot Linux through GRUB2 on AMD DB-FT3b-LC

From: Grigore Lupescu
Subject: Re: Boot Linux through GRUB2 on AMD DB-FT3b-LC
Date: Fri, 2 Dec 2016 17:06:10 +0000

Restarting the config from scratch in Coreboot and setting Keep Vesa framebuffer I am able to enter gfxterm in GRUB2.
So at this point gfxterm is selected not vga_text. Linux is booting without any issue now. Apparently the vga_text mode was the source of all problems/limitations.

On Fri, Dec 2, 2016 at 3:28 PM, Grigore Lupescu <address@hidden> wrote:
Hello Andrei,

I managed to improve the status of the vga_text mode. So GRUB2 was restarting when reaching the end of the screen. I traced this to the screen_read_char which is issued when the inc_y == ROWS (this call would break GRUB2). I didn't go even further with the debug though. I just clear the screen and set grub_curr_pos.y to 0 and by using set pager=1 I can browse with enter through all the output page by page. It's not ideal but it was fast and practical.

Linux though still doesn't boot. I am currently looking why the vga_text mode is selected over gfxterm which is not even configured properly.


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