update_engine: Support full update on MTD devices
This CL fleshes out the MTD and UBI FileDescriptor subclasses and
modifies the utility functions that deal with device name and partition
number to support NAND scheme.
BUG=brillo:45
BUG=brillo:43
TEST=unittest on rambi
TEST=cros flash to storm_nand, reboot, make sure rootdev -s says something
different. Then repeat and make sure that another device is reported.
TEST=If the above was done with verified-rootfs, repeat with
non-verified image.
Change-Id: I31b9a00642f9a7ff67ea51a4cf3dc31b86095e98
Reviewed-on: https://chromium-review.googlesource.com/257192
Reviewed-by: Nam Nguyen <namnguyen@chromium.org>
Commit-Queue: Nam Nguyen <namnguyen@chromium.org>
Tested-by: Nam Nguyen <namnguyen@chromium.org>
7 files changed