H3C switch emptying configuration

Knowing the login password , Log in through the serial port , Besides using undo Instructions are deleted one by one , You can also use the following operations

The first way

<H3C>reset saved-configuration
The saved configuration file will be erased. Are you sure? [Y/N]:y    # I'm going to enter Y Confirm the clearing 

<H3C>reboot  # Restart the device 

The second way

View the contents of the current directory

<H3C>dir
Directory of flash:
   0 -rw-      220684 Jan 01 2013 00:00:00   defaultfile.zip
   1 drw-           - Jan 01 2013 00:00:12   diagfile
   2 -rw-         567 Jan 01 2013 00:26:30   dsakey
   3 -rw-         735 Jan 01 2013 00:26:12   hostkey
   4 -rw-         811 Jan 01 2013 02:13:20   ifindex.dat
   5 drw-           - Jan 01 2013 00:00:12   license
   6 drw-           - Jan 02 2013 00:00:11   logfile
   7 drw-           - Jan 01 2013 00:00:30   pki
   8 -rw-     6146048 Jan 01 2013 00:00:00   s5560s_si-cmw710-boot-r6318p01.bin
   9 -rw-    49709056 Jan 01 2013 00:00:00   s5560s_si-cmw710-system-r6318p01.bin
  10 drw-           - Jan 01 2013 00:00:12   seclog
  11 -rw-         591 Jan 01 2013 00:26:12   serverkey
  12 -rw-        3878 Jan 01 2013 02:13:21   startup.cfg
  13 -rw-       89555 Jan 01 2013 02:13:21   startup.mdb
  14 drw-           - Jan 01 2013 00:00:47   versionInfo

251904 KB total (195936 KB free)

Delete profile 【 Note the input below y】

<H3C>delete /unreserved startup.cfg 
The file cannot be restored. Delete flash:/startup.cfg? [Y/N]:y    # I'm going to enter y Confirm clear 
Deleting the file permanently will take a long time. Please wait...
Deleting file flash:/startup.cfg... Done.

Restart the switch , And you need to press... After restarting Ctrl+C or Ctrl+D【 Note the input below y and n】

<H3C>reboot   # Restart the device 
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   # I'm going to enter n, Otherwise, the current running configuration will be saved again 
This command will reboot the device. Continue? [Y/N]:y   # I'm going to enter y, Confirm restart 
Now rebooting, please wait....%Jan  1 02:13:59:423 2013 H3C DEV/5/SYSTEM_REBOOT: System is rebooting now.
..▒▒▒▒▒▒v▒3[▒▒▒
Starting......
Press Ctrl+D to access BASIC BOOT MENU
Booting Normal Extend BootWare....

********************************************************************************
*                                                                              *
*                H3C S5560S-28P-SI Switch BOOTROM, Version 136                 *
*                                                                              *
********************************************************************************
Copyright (c) 2004-2020 New H3C Technologies Co., Ltd.

Creation Date       : May 13 2020, 19:08:20
CPU Clock Speed     : 800MHz
Memory Size         : 512MB
Flash Size          : 256MB
CPLD Version        : 001
PCB Version         : Ver.B
Mac Address         :  Here is mac Address 


Press Ctrl+B to access EXTENDED BOOT MENU...0
Loading the main image files...
Loading file flash:/s5560s_si-cmw710-system-r6318p01.bin........................
...........................Done.
Loading file flash:/s5560s_si-cmw710-boot-r6318p01.bin.........Done.

Image file flash:/s5560s_si-cmw710-boot-r6318p01.bin is self-decompressing......
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
...........Done.
System is starting...
Cryptographic algorithms tests passed.

Startup configuration file doesn't exist or is invalid.
Performing automatic configuration... Press CTRL_C or CTRL_D to break.

Here it is Ctrl+D The appearance of

Starting......
Press Ctrl+D to access BASIC BOOT MENU   # Press Ctrl+D
Booting Normal Extend BootWare....

********************************************************************************
*                                                                              *
*                H3C S5560S-28P-SI Switch BOOTROM, Version 136                 *
*                                                                              *
********************************************************************************
Copyright (c) 2004-2020 New H3C Technologies Co., Ltd.

Creation Date       : May 13 2020, 19:08:20
CPU Clock Speed     : 800MHz
Memory Size         : 512MB
Flash Size          : 256MB
CPLD Version        : 001
PCB Version         : Ver.B
Mac Address         :  Here is mac Address 


Press Ctrl+B to access EXTENDED BOOT MENU...0
Loading the main image files...
Loading file flash:/s5560s_si-cmw710-system-r6318p01.bin........................
...........................Done.
Loading file flash:/s5560s_si-cmw710-boot-r6318p01.bin.........Done.

Image file flash:/s5560s_si-cmw710-boot-r6318p01.bin is self-decompressing......
................................................................................
................................................................................
................................................................................
................................................................................
................................................................................
...........Done.
System is starting...
Cryptographic algorithms tests passed.

Startup configuration file doesn't exist or is invalid. Performing automatic configuration... Press CTRL_C or CTRL_D to break. Automatic configuration attempt: 1. Not ready for automatic configuration: no interface available. Waiting for the next... Automatic configuration is aborted. Line aux0 is available. Press ENTER to get started. ****************************************************************************** * Copyright (c) 2004-2020 New H3C Technologies Co., Ltd. All rights reserved.* * Without the owner's prior written consent,                                 *
* no decompiling or reverse-engineering shall be allowed.                    *
******************************************************************************

<H3C>%Jan  1 00:01:04:674 2013 H3C SHELL/5/SHELL_LOGIN: TTY logged in from aux0.

<H3C>

The following is nothing Ctrl+C or Ctrl+D The appearance of

Automatic configuration attempt: 1.
Interface used: Vlan-interface1.
Enable DHCP client on Vlan-interface1.
Set DHCP client identifier: 083a38f26fd9-VLAN0001
Vlan-interface1 failed to obtain IP address.
Vlan-interface1 failed to obtain IPv6 address.
Waiting for the next...

Automatic configuration attempt: 2.
Interface used: Vlan-interface1.
Enable DHCP client on Vlan-interface1.
Set DHCP client identifier: 083a38f26fd9-VLAN0001
Vlan-interface1 failed to obtain IP address.
Vlan-interface1 failed to obtain IPv6 address.
Waiting for the next...

Automatic configuration attempt: 3.
Interface used: Vlan-interface1.
Enable DHCP client on Vlan-interface1.
Set DHCP client identifier: 083a38f26fd9-VLAN0001
Vlan-interface1 failed to obtain IP address.
Vlan-interface1 failed to obtain IPv6 address.
Waiting for the next...

Automatic configuration attempt: 4.
Not ready for automatic configuration: no interface available.
Waiting for the next...

Automatic configuration attempt: 5.
Not ready for automatic configuration: no interface available.
Waiting for the next...

Automatic configuration attempt: 6.
Not ready for automatic configuration: no interface available.
Waiting for the next...

Automatic configuration attempt: 7.
Not ready for automatic configuration: no interface available.
Waiting for the next...

Automatic configuration attempt: 8.
Not ready for automatic configuration: no interface available.
Waiting for the next...
▒g▒▒_▒▒▒▒▒▒▒▒

console When the password is forgotten , Skip configuration , Go straight into

Starting......
Press Ctrl+D to access BASIC BOOT MENU
Booting Normal Extend BootWare....

********************************************************************************
*                                                                              *
*                H3C S5560S-28P-SI Switch BOOTROM, Version 136                 *
*                                                                              *
********************************************************************************
Copyright (c) 2004-2020 New H3C Technologies Co., Ltd.

Creation Date       : May 13 2020, 19:08:20
CPU Clock Speed     : 800MHz
Memory Size         : 512MB
Flash Size          : 256MB
CPLD Version        : 001
PCB Version         : Ver.B
Mac Address         :  Here is mac Address 


Press Ctrl+B to access EXTENDED BOOT MENU...0   # Try to press before this sentence comes out Ctrl+B

Password recovery capability is enabled.

   EXTENDED BOOT MENU

1. Download image to flash
2. Select image to boot
3. Display all files in flash
4. Delete file from flash
5. Restore to factory default configuration
6. Enter BootRom upgrade menu
7. Skip current system configuration
8. Set switch startup mode
9. Set The Operating Device
0. Reboot
Ctrl+Z: Access EXTENDED ASSISTANT MENU
Ctrl+F: Format file system
Ctrl+P: Change authentication for console login
Ctrl+R: Download image to SDRAM and run
Ctrl+C: Display Copyright

Enter your choice(0-9): 7   # The serial number in this device 7 Yes, skip configuration , Other equipment needs to be looked after in advance 
The current setting will run with current configuration file when reboot.
Are you sure you want to skip current configuration file when reboot? Yes or No
(Y/N):Y
Setting...Done.

   EXTENDED BOOT MENU

1. Download image to flash
2. Select image to boot
3. Display all files in flash
4. Delete file from flash
5. Restore to factory default configuration
6. Enter BootRom upgrade menu
7. Skip current system configuration
8. Set switch startup mode
9. Set The Operating Device
0. Reboot
Ctrl+Z: Access EXTENDED ASSISTANT MENU
Ctrl+F: Format file system
Ctrl+P: Change authentication for console login
Ctrl+R: Download image to SDRAM and run
Ctrl+C: Display Copyright

Enter your choice(0-9): 0▒▒▒▒▒▒▒▒▒▒s▒▒▒   # Choose here 0, Restart the device 
Starting......
Press Ctrl+D to access BASIC BOOT MENU     # This is when you start pressing Ctrl+D 了 
Booting Normal Extend BootWare....

********************************************************************************
*                                                                              *
*                H3C S5560S-28P-SI Switch BOOTROM, Version 136                 *
*                                                                              *
********************************************************************************
Copyright (c) 2004-2020 New H3C Technologies Co., Ltd.

Creation Date       : May 13 2020, 19:08:20
CPU Clock Speed     : 800MHz
Memory Size         : 512MB
Flash Size          : 256MB
CPLD Version        : 001
PCB Version         : Ver.B
Mac Address         :  Here is mac Address