If a SmartUpdate upgrade or distribution operation fails on GAiA, how is the system recovered?

A.
The Administrator must remove the rpm packages manually, and re-attempt the upgrade.

B.
GAiA will reboot and automatically revert to the last snapshot version prior to upgrade.

C.
The Administrator can only revert to a previously created snapshot (if there is one) with the
command cprinstall snapshot <object name> <filename>.

D.
The Administrator must reinstall the last version via the command cprinstall revert <object
name> <file name>.

Explanation: