tree 983a6a59ddb79ab160495b3045a51b18fd851495
parent 52ef901d2859ea919bc7541bd697edd4b09e1f84
author Hung-Te Lin <hungte@chromium.org> 1523480109 +0800
committer chrome-bot <chrome-bot@chromium.org> 1523521539 -0700

sh: cros_payload: Detect netboot kernel version better.

On recent builds, the vmlinuz may not have compiler signature, so we
should really consider using file(1) to identify kernel version.

Meanwhile, there's no easy way to find out the version information on
ARM kernels so we have to fallback to MD5 hash value if a kernel really
contains no version information.

BUG=None
TEST=make test; cros_docker add JSON netboot_kernel vmlinuz

Change-Id: I9be29616c401546724c288cff2e130d1e414190d
Reviewed-on: https://chromium-review.googlesource.com/1008482
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Youcheng Syu <youcheng@chromium.org>