When Switch is booting up and you see the below, keep pressing Ctrl+B.
Starting……
Press Ctrl+D to access BASIC BOOT MENU
Press Ctrl+T to start heavy memory test
You will then see the below after CTRL+B has been recognised in the correct part
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
Press 4
Then look for the startup.cfg file. In this instance it is 11
Deleting the file in flash:
File Number File Size(bytes) File Name
================================================================================
1(*) 6825984 flash:/5510hi-cmw710-boot-r1311p02.bin
2(*) 74602496 flash:/5510hi-cmw710-system-r1311p02.bin
3 168426 flash:/startup.mdb
4 20 flash:/.snmpboots
5 591 flash:/serverkey
6 735 flash:/hostkey
7 2398 flash:/pki/https-server.p12
8 536 flash:/versionInfo/version1.dat
9 536 flash:/versionInfo/version0.dat
10 8 flash:/versionInfo/versionCtl.dat
11(*) 19401 flash:/startup.cfg
12 2993009 flash:/logfile/logfile.log
13 796 flash:/license/DeviceID.did
14 1009 flash:/license/CN65H10065.did
15 61771776 flash:/5510hi-cmw710-system-r1122p02.bin
16 10720256 flash:/5510hi-cmw710-boot-r1122p02.bin
17 1005 flash:/ifindex.dat
18 168426 flash:/.trash/startup.mdb_0001
19 19401 flash:/.trash/startup.cfg_0001
20 100 flash:/.trash/.trashinfo
Free space: 378048512 bytes
The current image is 5510hi-cmw710-boot-r1311p02.bin
(*)-with main attribute
(b)-with backup attribute
(*b)-with both main and backup attribute
Please input the file number to change: 11
The file you selected is startup.cfg,Delete it? (Y/N):Y
Deleting…..Done.
Type 11 and enter. Then type Y to delete. You can go back into the above menu and you will see there is no startup.cfg.
Reboot the switch with 0 and enter
When the below comes up hit CTRL+C to cancel. Then the switch is fully wiped.
System is starting…
Cryptographic algorithms tests passed.
Startup configuration file does not exist.
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…