# bless > Set volume boot capability and startup disk options. > More information: . - Bless a volume with only Mac OS X or Darwin, and create the BootX and `boot.efi` files as needed: `bless --folder {{/Volumes/Mac OS X/System/Library/CoreServices}} --bootinfo --bootefi` - Set a volume containing either Mac OS 9 and Mac OS X to be the active volume: `bless --mount {{/Volumes/Mac OS}} --setBoot` - Set the system to NetBoot and broadcast for an available server: `bless --netboot --server {{bsdp://255.255.255.255}}` - Gather information about the currently selected volume (as determined by the firmware), suitable for piping to a program capable of parsing Property Lists: `bless --info --plist`