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Matt DeVillier 53b53ddd1c util/chromeos/crosfirmware: Increase lookahead when parsing bios_image 
Newer recovery images change the manifest format yet again, so increase
the lookhead when parsing the bios_image field to ensure we can find it.

TEST=run `./crosfirmware.sh craaskbowl` without erroring out

Change-Id: Idb1862e38a82f3cec8db55993ccf421cf3572c6f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86777
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
2025-03-12 12:41:35 +00:00
..
crosfirmware.sh util/chromeos/crosfirmware: Increase lookahead when parsing bios_image 2025-03-12 12:41:35 +00:00
description.md treewide: Unify Google branding 2022-07-04 14:02:26 +00:00
extract_blobs.sh util/chromeos/extract_blobs: allow passing dest dir as arg 2023-02-10 14:53:58 +00:00
gen_test_hwid.sh util/chromeos/gen_test_hwid.sh: Replace usage of hexdump 2022-12-17 20:45:42 +00:00
README.md treewide: Unify Google branding 2022-07-04 14:02:26 +00:00
update_ec_headers.sh util: Break up spdx identifier text in scripts & makefiles 2024-06-19 17:42:43 +00:00

README.md

ChromeOS Scripts

These scripts can be used to access or generate ChromeOS resources, for example to extract System Agent reference code and other blobs (e.g. mrc.bin, refcode, VGA option roms) from a ChromeOS recovery image.

crosfirmware.sh

crosfirmware.sh downloads a ChromeOS recovery image from the recovery image server, unpacks it, extracts the firmware update shell archive, extracts the firmware images from the shell archive.

To download all ChromeOS firmware images, run

$ ./crosfirmware.sh

To download, e.g. the Panther firmware image, run

$ ./crosfirmware.sh panther

extract_blobs.sh

extract_blobs.sh extracts the blobs from a ChromeOS firmware image.

Right now it will produce the ME firmware blob, IFD, VGA option rom, and mrc.bin.

gen_test_hwid.sh

gen_test_hwid.sh generates a test-only identifier in ChromeOS HWID v2 compatible format.

Usage:

$ ./gen_test_hwid.sh BOARD_NAME

Example:

$ ./gen_test_hwid.sh Kukui
KUKUI TEST 9847