FreeNAS Code

fix arguments order

add sysctl calls to generate config

Pass force4khack to lower layer.

add a button to start scrub

it doesn't really makes sense to log sysctl -b kern.geom.confxml

Fix typo.

do not pollute log with zpool status check

fix swapgb unbound var

warn the user whether the disk size is lower than configured swap size

The previous commit should have said:

"Delay import to avoid circular module dependency."