Fortinet 5003 - Manual (Page 106)

FortiSwitch-5003A and 5003 Fabric and Base Backplane Communications Guide
106 01-30000-85717-20081205
execute FortiSwitch-5003A CLI reference
bootimage
Use this command to change the firmware image used to start the FortiSwitch-5003A board by
switching between the primary or secondary firmware image. To use this command you must install a
primary and a secondary firmware image by using the system startup options available when you
reboot the FortiSwitch-5003A from a console connection to the FortiSwitch-5003A COM port.
Syntax
execute bootimage {primary | secondary}