H3C Technologies H3C MSR 930 - Manual (Page 29)

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No response from the serial port
If the serial port does not respond, verify that the serial cable is in good condition and the serial port
settings are correct.
Password loss
User password loss
If you lose your password, you cannot enter the system. In this case, you can boot the system by
ignoring the system configuration.
To solve the user password loss:
1. Enter the main BootWare menu, and select 6 to boot the system by ignoring the system
configuration.
The system prompts the following:
Flag Set Success.
The output shows that the setting succeeded.
2. When the main BootWare menu appears again, and select 0 to reboot the system.
System is rebooting now.
System start booting...
Booting Normal Extend BootWare....
3. Set a new password in system view after the system reboots. The console port uses password
authentication, and the password is set to 123456 and stored in plain text.
system-view
[Sysname] user-interface console 0
[Sysname-ui-console0] authentication-mode password
[Sysname-ui-console0] set authentication password simple 123456
When you set the password by using the set authentication password { cipher | simple }
password command, note the following:
{
If you specify the cipher keyword, the password is stored in cipher text. You cannot view the
password by using the display current-configuration command.
{
If you specify the simple keyword, the password is stored in plain text. You can use the
display current-configuration command to view the password in the current configuration.
4. After modifying the user password, save it by executing the save command. H3C recommends
saving the modifications as the default configuration file.
[Sysname] save
After reboot, the system uses the initial default configuration, but keeps the original configuration file
in storage. You can restore the original configuration by using the display saved-configuration
command to display the configuration, and then copying and executing the configuration.
Super password loss
The super password provides access to four super levels, enabling you to perform higher-level
operations.
To recover from super password loss: