If no one can log into the OnBoard, you can perform the steps in To Recover From Login Failure to reset the root or admin user’s password.The procedure would be needed, for example, if an attempt to login to the console as root brings up the following message:
See To Boot in U-Boot Monitor Mode. The U-Boot monitor prompt appears as shown in the following screen example.
=> hw_boot single
3. When single user mode comes up, use the passwd command to change the root or admin user’s password.
[root@(none)/]# passwd adminNew password: admin_passwordRe-enter new password: admin_password
[root@OnBoard root]# reboot