# bootadm update-archive
# bootadm update-archive -R /a
Specifies an alternate root path to apply to the update-archive subcommand.
Caution - The root file system of any non-global zone must not be referenced with the –R option. Doing so might damage the global zone's file system, compromise the security of the global zone, or damage the non-global zone's file system. See the zones(5) man page.