I'm looking to upgrade my dual 6509 VSS enviornment from
s72033-ipservicesk9_wan-mz.122-33.SXI1 --> s72033-ipservicesk9_wan-mz.122-33.SXI4.
They are dual WS-C6509-E with MOD's: VS-S720-10G (VS-F6K-PFC3C)
I followed Cisco's Document seen here:
I used the EFSU method and it was a complete failure, I follwed the instructions very carefully.
as soon as I did the "issu loadversion" the standby chassis did what it was suppose to, reboot. As soon as it came back up with the correct code it reboot again, it went into a rebooting loop that couldn't be stopped. It then attempted to reboot to the old code and it was giving the same mismatch error in show logging. I opened up a severity 1 case and they were able to get it to stop looping by issuing the following command:
redundancy config-sync ignore mismatched-commands
My question now is, should I avoid using EFSU and stick to the standard FSU upgrade method?