Cisco C9300-48UXM stack firmware upgrade?

[victoriabardy]

Isn't it possible for me to upgrade the primary switch and then have it copy over to the other members of the stack?  Of do I need to copy the firmware to each member of the stack?  I know I was able to copy over firmware from the primary when I was staging a stack for production.  Not sure if I can do the same procedure for when the stack is already in production?  Can someone here on the forums let me know the commands if you do?

Thank you.

Rgds,

Vicky

[Mark Elsen]

  - FYI : https://blog.noblinkyblinky.com/2019/07/27/upgrading-ios-xe-on-catalyst-9000-series-switch-stack/

 M.

[balaji.bandi]

You can do inline upgrade :

https://www.balajibandi.com/?paged=3

[Leo Laohoo]

Copy the firmware into the master and initiate the Install Mode (see attachment) and the process will copy the firmware (and unpack the packages) automatically. 

IMPORTANT:  Look at the Gotcha section!