commit 68466c6d0a6cf629b77972773f523118b9cbb7be
author Mike Frysinger <vapier@chromium.org> Tue May 09 03:56:17 2017 -0400
committer chrome-bot <chrome-bot@chromium.org> Sat Jul 15 14:45:13 2017 -0700
tree e8fa76e923a138bcaedb294875f643967e5bbe47
parent 8e556f4e2344b71b0be0b73b29c8185b677dd57f

image_signing: sign_official_build.sh: use loopbacks for rootfs hash updates

This avoids copying GB of data for the rootfs & kernels by using loopback
devices instead.

BRANCH=None
BUG=chromium:714598
TEST=dump_config still works

Change-Id: I41cd71db3c567be811c4a59523c797c128a8e493
Reviewed-on: https://chromium-review.googlesource.com/505480
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: David Riley <davidriley@chromium.org>