Releases: andy778/T420-coreboot
Release list
Libreboot 26.01rev1 t420_8mb txtmode+VBIOS (svenska)
Libreboot 26.01rev1 t420_8mb, variant seagrub_libgfxinit_txtmode_svenska patched with the real Intel VBIOS (vgabios.bin, both PCI IDs 8086,0166/8086,0126), SeaVGABIOS removed. SeaBIOS + GRUB payload, text-mode init, Swedish GRUB keymap.
Supersedes release 20260718 (corebootfb variant): that image hung on Windows 11 boot and, once patched with the VBIOS, gave Kali Linux colour flicker at startup — both are graphics-handoff artifacts of corebootfb + a real VBIOS fighting over INT 10h. This txtmode + VBIOS image is what the original 2024 custom coreboot build used, and it boots Windows 11 and Linux (Kali, Fedora) cleanly with no flicker.
Prepared with ./mk inject (neutered Intel ME via me_cleaner, onboard NIC MAC injected) plus a cbfstool patch adding the vendor VBIOS and removing vgaroms/seavgabios.bin. Built and reproduced two ways — manually and via the docker/ build in this repo — with matching sha256sums. Flashed internally 2026-07-21, boots and runs on the machine (i7-3632QM).
This is the exact image on the chip — usable as a recovery image via the FT232H + SOIC8 clip procedure in the README.
sha256: 8d19c3275310d6d2f31b0269ad6ea02a9e9e7d65
Libreboot 26.01rev1 t420_8mb (svenska)
Superseded by release 20260721 — this corebootfb variant hangs on Windows 11 boot; kept for history/rollback only.
Libreboot 26.01rev1 t420_8mb, variant seagrub_libgfxinit_corebootfb_svenska (SeaBIOS + GRUB payload, native graphics init, Swedish GRUB keymap).
Prepared with ./mk inject from the official 26.01rev1 release: neutered Intel ME (me_cleaner) and onboard NIC MAC injected. Flashed internally 2026-07-18 with flashrom 1.6.0 (VERIFIED), boots and runs on the machine with i7-3632QM, AX210/BE200 tested.
This is the exact image on the chip — usable as a recovery image via the FT232H + SOIC8 clip procedure in the README.
sha256: f49023b748de1e43a90abb5a24609f30484bd81ee00f3577d0e06531cf3977d8
Supersedes release 20240802 (custom coreboot build, kept for rollback).