vbutil_kernel(1) on Linux
The text c3f2f9b9bb9f, as Debian 9 (Stretch) shipped it.
Utility to sign custom kernels to boot with Chrome OS devices
Flags it lists
-
--arch -
--bootloader -
--config -
--flags -
--keyblock -
--kloadaddr -
--minversion -
--oldblob -
--pad -
--signprivate -
--signpubkey -
--vblockonly -
--verbose -
--version -
--vmlinuz -
--vmlinuz-out