<admin123>reset saved-configuration
The saved configuration file will be erased. Are you sure? [Y/N]:y
Configuration file in flash: is being cleared.
Please wait ...
Configuration file is cleared.
<admin123>
<admin123>
<admin123>
<admin123>
<admin123>reboot
<admin123>reboot
Start to check configuration with next startup configuration file, please wait.........DONE!
Current configuration may be lost after the reboot, save current configuration? [Y/N]:n #这里很重要，必须选N
This command will reboot the device. Continue? [Y/N]:y
Now rebooting, please wait...