hardware_DiskSize,SsdDetection: fix hardware root dev discovery
When root filesystem verification is enabled, the root device discoverable
by walking the kernel command line does not match the physical drive the root
partition is on. Just recently, we added support for rootdev to resolve
through the device-mapper device (/dev/dm-0) to find the true root device.
These two tests now use rootdev with this functionality.
TEST=ran these on a vboot'd dogfood device (well waiting for a full fresh build, then I will :)
BUG=chromium-os:890,chromium-os:892
Change-Id: Ieda92c297d4b8ec2b93f5bf8a3f0a61e1cedd33a
Review URL: http://codereview.chromium.org/3349001
2 files changed