Up to vCenter Server 8.0 U1, executing the localaccounts.user.list command in the appliance shell shows the root and idmservice users by default.
In vCenter Server 8.0 U2 and later, executing localaccounts.user.list only shows the root user.
vCenter Server 8.0
The localaccounts.user.list command shows users whose login shell is set to the appliance shell (/bin/appliancesh).
In vCenter Server 8.0 U2 and later, the login shell for the idmservice user changes from the appliance shell to /sbin/nologin.
Therefore, it is no longer listed in the command output.
This is the expected behavior.
Because idmservice is a service user, it does not require login access.
This change in the login shell does not impact on vCenter Server.