It was a recommended practice for years to get away from straight
names in /dev, like /dev/sda1, when mounting filesystems. The
man page for mount(8) says:
The device name of disk partitions are unstable; hardware
reconfiguration, adding or removing a device can cause change
in names. This is reason why it's strongly recommended to use
filesystem or partition identificators like UUID or LABEL.
Nonetheless, novice operators sometimes follow our deployment
guide to the letter and then get into trouble when device names
shift from under their deployments. This patch fixes the problem
without bloating up the guide with general explanations.
Change-Id: I5faae158b62e0395d6e774cd67bd868c785c2186
52bc11f097