Turn on Mac mini in "server mode"

# Magic tweak to put a Mac mini in "server mode" meaning it will
# reboot after a power failure.  Requires machdep.allowaperture=1
# (or better)
#
if [ -x /usr/X11R6/bin/pcitweak ]; then
       /usr/X11R6/bin/pcitweak -w 00:1f:0 -b 0xa4 0x00
       if [ "$(/usr/X11R6/bin/pcitweak -r 0:1f:0 -b 0xa4)" = "0x00" ]; then
               echo -n ' server-mode'
       fi
fi

// marc

Courtesy