the system attempts to resize the root file system to fill it's
partition prior to mounting read-write. Useful for things like AMI
file system images. May eventually be used by arm images after
coming up with similar solution for increasing the parition size.
first, mount root and run the various disk providers. Add swap and
check the remaining file systems after that.
This breaks the dependency cycle for lvm, which needs writeable /dev.
Depend on rndctl in cgd.