faft: Always unplug USB before booting and plug it on firmware screen
The original test logic is to verify the legacy recovery mode behavior:
- if dev_mode ON, directly boot to USB stick if presented;
- if dev_mode OFF,
- the old models need users to remove and insert the USB;
- the new models directly boot to the USB.
Always unplugging USB before booting does not verify this legacy behavior
but it simplifies the test logic.
BUG=chrome-os-partner:16231
TEST=Ran firmware_RecoveryButton on Samus.
Change-Id: Ifeff59acdff78262240978ede9b4dd736a4802af
Reviewed-on: https://chromium-review.googlesource.com/272303
Tested-by: Tom Tam <waihong@google.com>
Reviewed-by: Yusuf Mohsinally <mohsinally@chromium.org>
Commit-Queue: Tom Tam <waihong@google.com>
1 file changed