30.11.2016 18:59, Grigore Lupescu пишет: > Hello Andrei, > > Unfortunately not - I cannot attach a serial. My only options excluding > HDMI output are LPC (ordered header) and USB (with hacks, don't want to try > this one yet). Any suggestions on debug would definitely help. > > From the looks of it it might be a Coreboot problem rather than a GRUB2 > problem but I am trying to wage out the possibility of something in the > middle. > > Problem1 - Overflow each time I reach end of screen
I cannot reproduce it using grub-qemu (the closest to coreboot platform I could build in short time). If you explain how to create coreboot+grub for booting in qemu, I'll try it. I have some old notebooks that I can use for testing, so I may try coreboot on real hardware if I get detailed enough how-to. > Problem2 - Linux doesn't boot. I execute the below to boot: > grub> set root=(hd0,gpt2) > grub> linux /boot/vmlinuz-4.4...-generic root=/dev/sda2 > grub> initrd /boot/initrd.img-4.4...-generic set debug=all > grub> boot > Well, if system really resets you may not have time to actually read debugging output ... recently there was discussion about using serial PCI card on help-grub; do you have USB-to-serial adapter? > I use a USB to SATA drive where I have the SSD plugged in (and legacy > Ubuntu Linux x64 4.4 on it). > > ### 1 ### Everything works > AMI BIOS 2.17.1246 > Core Version 4.6.5.4 > UEFI 2.3.1; PI 1.2 > AMI BIOS + GRUB2.02beta2-36ubuntu3.1 => terminal_output=gfxterm, see > USB-SATA SSD as (hd0), (hd0, gpt0).., works both on USB2.0 and USB3.0. > > ### 1 ### Overflow screen + cannot boot Linux > Coreboot latest + GRUB2.02beta3 => terminal_output=vga_text, see USB-SATA > SSD as (usb0), (usb0, gpt0).., works only on USB2.0. > > Thank you, > Grigore > > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel > _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
