After swapping the REs in EVO routers we are seeing an error on the router:
CLI> show system alarms
Apr 24 11:28:19
2 alarms currently active
Alarm time Class Description
2023-04-24 10:03:58 GMT Minor Host 0 Disk 2 Labelled incorrectly
This is an expected alarm given there is no image installed on the secondary disk. While doing a USB install, the Junos image is not installed on both the SSDs.
If that is the case, please run a snapshot using below CLI and the alarm should go away.
> request system snapshot