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Re: [Libreboot] Getting full disk encryption (FDE) to work with Libreboo

From: Leah Rowe
Subject: Re: [Libreboot] Getting full disk encryption (FDE) to work with Libreboot and *BSD
Date: Mon, 5 Sep 2016 08:38:33 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.2.0

Hi Piotr,

I'm confused, what is the option ROM you mention and where does it come
from? Is it free or non-free? (if the latter, then you shouldn't be
posting such things on this list)

address@hidden:~$ lspci -nnnn | grep 8086:2a42
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4
Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)

This is on my system, but I' m booting libreboot 2016092 with GNU/Linux.
You are telling people to "generate" it but what you really mean is to
tell people to extract the proprietary Video BIOS option ROM and use
that. You are advocating non-free software on a GNU mailing list. I am
therefore revoking your access to the GNU Libreboot mailing list.

On 05/09/16 08:15, Piotr Kubaj wrote:
> 1. You need to use txt mode images. Maybe it's possible to use vesa
> mode, but I haven't had a success with it.
> 2. You need to modify Libreboot images. Luckily, you don't need to patch
> and recompile or modify options. You need to only remove GRUB-related
> files from the image itself and add option ROM (you need to generate it
> yourself, I just extract mine from my old Coreboot image).
> Exact steps:
> 1. wget
> Download Libreboot utilites.
> 2. tar xvvf libreboot_r20160902_util.tar.xz
> Extract Libreboot utilities.
> 3. wget
> Download latest Libreboot release. Change it appriopriately when there
> are newer releases.
> 4. tar xvvf libreboot_r20160902_grub_x200_8mb.tar.xz
> Extract lates Libreboot release.
> 5. mv libreboot_r20160902_grub_x200_8mb/x200_8mb_usqwerty_txtmode.rom
> libreboot_r20160902_util/cbfstool/x86_64
> I'm using US QWERTY keyboard. Please change it to the keyboard you have.
> Bad keyboard won't break your computer but will be inconvenient to use.
> 6. libreboot_r20160902_util/cbfstool/x86_64
> Again, I'm using x86_64. If you use i686 or armv7l, change it
> appriopriately, or the program you need to run now won't run.
> 7. mv old.rom libreboot_r20160902_util/cbfstool/x86_64
> This old.rom is my old Coreboot image which I need for options ROM. You
> can copy options ROM alone if you have it.
> 8. ./cbfstool x200_8mb_usqwerty_txtmode.rom remove -n grub.cfg
> grub.cfg isn't harmful in any way but unnecessary.
> 9. ./cbfstool x200_8mb_usqwerty_txtmode.rom remove -n grubtest.cfg
> grubtest.cfg isn't harmful in any way but unnecessary.
> 10. ./cbfstool x200_8mb_usqwerty_txtmode.rom remove -n img/grub2
> img/grub2 is the payload which is loaded after SeaBIOS. This is necessary.
> 11 ./cbfstool old.rom extract -n pci8086,2a42.rom -f pci8086,2a42.rom
> Extract options ROM from Coreboot image. If you have pci8086,2a42.rom
> file, you don't need to do it.
> 12. ./cbfstool x200_8mb_usqwerty_txtmode.rom add -n pci8086,2a42.rom -f
> pci8086,2a42.rom -t optionrom
> Add options ROM to you Libreboot image.
> 13. ./cbfstool x200_8mb_usqwerty_txtmode.rom remove -n etc/show-boot-menu
> Remove etc/show-boot-menu file which make SeaBIOS not show its menu.
> After that, reflash.

Leah Rowe

Libreboot developer

Use free software. Free as in freedom.

Use a free operating system, GNU/Linux.

Use a free BIOS.

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