Dual boot options on F5

Hi all ,

 

 

we are trying to upgrade the OS on the F5 from 9.2.5 to 9.3.1. Now we wanted to know if there is any option of installing dual boot so that if one of the os crashes with the option of "switchboot" i should be able to get the other standby opertaing system ready for use. what is the procedure for such kind of an installation.

 

 

Will it be a fresh installation of 9.3.1 (if yes then what happens to the old OS files)

 

 

If i perform upgrade the os from 9.2.5 to 9.3.1 using the hotfix i am not sure if it will ask me for dual boot OS as this is a patch for 9.2.5 (correct me if i am wrong).

 

 

Please let me know some links which can help me get dual boot on my LB . The device type is C62.