Does anyone have any experience with upgrading Junos on a mixed virtual chassis? I have 2 4500s and 3 4200s.
I haven't found much documentation but anything I have found looks like it is this command below one I have uploaded the packages to the chassis.
request system software add set [/var/tmp/jinstall-ex-4500-12.3R6.6-domestic-signed.tgz /var/tmp/jinstall-ex-4200-12.3R6.6-domestic-signed.tgz]
Can anyone confirm that command for me?
Also, I'm currently running 11.1 - should I be upgrading to 11.4 before I go up to 12.3?
Yes, that is the correct command.
According to the release notes of 12.3, you can jump directly from 11.1 to 12.3:
Check the 'Upgrade and Downgrade Instructions for Junos OS Release 12.3 for EX Series Switches' section.
If this worked for you please flag my post as an "Accepted Solution" so others can benefit. A kudo would be cool if you think I earned it.