Article ID: 14144
Matrix N-Series DFE
Unable to delete or disable the 'admin' account.
When trying to delete or disable the admin account on the local system, the commands fail; for example: S4 Chassis(su)->clear system login admin
Could not delete user: admin
S4 Chassis(su)->set system login admin super-user disable
Set was unsuccessful.
Upgrade to firmware 7.41.02.0014 or higher.
The default admin account may manually be disabled after replacing it, as follows:
set system login <my_super_user
> super-user enable
set system lockout emergency-access <my_super_user
set system login admin super-user disable
The 'show system lockout' command output now includes the line...
Account for emergency-access on the console: <account
Here, the identified account would be <my_super_user
Use radius authentication, as (regardless of firmware version) this will take precedence as long as the server is reachable.
See also: 10316
regarding setting a password on the new account.