华为5700系列清除console口密码

串口线连接交换机，重启交换机

Sep 5 2018, 16:30:59
mknod: /dev/mvPP: File exists
BootLoad version : 020b.0a06
Backup U-Boot ............................................................. done

Press Ctrl+B or Ctrl+E to enter BootLoad menu: 0

出现如上提示按 Ctrl+B

Password: 　　 #输入默认密码 [e-mail]

The default password is used now. Change the password.

BootLoad Menu

1. Boot with default mode
2. Enter serial submenu
3. Enter startup submenu
4. Enter ethernet submenu
5. Enter filesystem submenu
6. Enter password submenu
7. Clear password for console user
8. Reboot
(Press Ctrl+E to enter diag menu)

Enter your choice(1-8): 7 　　#选择7清除console口密码

Note: Clear password for console user? Yes or No(Y/N): y
Clear password for console user successfully.
Note: Choose "1. Boot with default mode" to boot, then set a new password

BootLoad Menu

1. Boot with default mode
2. Enter serial submenu
3. Enter startup submenu
4. Enter ethernet submenu
5. Enter filesystem submenu
6. Enter password submenu
7. Clear password for console user
8. Reboot
(Press Ctrl+E to enter diag menu)

Enter your choice(1-8): 1 　　 #选择默认模式启动