I've installed Arch 2017.07.01 on a micro SD card in my Dell Chromebook 13 using this guide, and I'm using John Lewis' SeaBios to dual boot. I can successfully get into the boot menuand select the micro sd to boot from, but I then get a Welcome to GRUB! message, and, instead of a GRUB console, i get a few lines of white distortion on top of my screen, with the boot menu still frozen in the background. I believe the distortion is the console outputting incorrectly as typing seems to change it, and it disappears after a while, reappearing when i move the mouse or type, like the screen falling asleep and waking up.

I've already tried doing a full reinstall of arch, commenting out GRUB_HIDDEN_TIMEOUT and GRUB_HIDDEN_TIMEOUT_QUIET, and changing GRUB_GFXMODE to 640x480, but nothing had worked.

Any ideas?


I see that this is very late, but I want to leave an answer in case you still have this problem, or anyone else comes across it. What worked for me was doing everything OP did(commenting out GRUB_HIDDEN_TIMEOUT and GRUB_HIDDEN_TIMEOUT_QUIET, uncommenting GRUB_GFXMODE=640x480), but also uncommenting GRUB_TERMINAL=console. For those who don't know know these are all changes in /etc/default/grub. After you change that file you always have to run sudo update-grub. This worked on the Chromebook Pixel 2 but it might work on other chromebooks as well.

see this question as a reference.

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