Reset a Cisco 2960 Switch To Factory Default Settings
Step 1
Connect up a console cable and power on the switch, whilst holding down the “mode” button:
This interrupts the boot process before the Flash file system can initialize, and after a short while you will see the following prompt:
Step 2
Run the following command to initialize the flash file system:
Switch:flash_init
switch: flash_init Initializing Flash… mifs[2]: 10 files, 1 directories mifs[2]: Total bytes : 1806336 mifs[2]: Bytes used : 612352 mifs[2]: Bytes available : 1193984 mifs[2]: mifs fsck took 1 seconds. mifs[3]: 0 files, 1 directories mifs[3]: Total bytes : 3870720 mifs[3]: Bytes used : 1024 mifs[3]: Bytes available : 3869696 mifs[3]: mifs fsck took 0 seconds. mifs[4]: 5 files, 1 directories mifs[4]: Total bytes : 258048 mifs[4]: Bytes used : 9216 mifs[4]: Bytes available : 248832 mifs[4]: mifs fsck took 0 seconds. mifs[5]: 5 files, 1 directories mifs[5]: Total bytes : 258048 mifs[5]: Bytes used : 9216 mifs[5]: Bytes available : 248832 mifs[5]: mifs fsck took 1 seconds. — MORE — mifs[6]: 566 files, 19 directories mifs[6]: Total bytes : 57931776 mifs[6]: Bytes used : 28429312 mifs[6]: Bytes available : 29502464 mifs[6]
switch: flash_init Initializing Flash… mifs[2]: 10 files, 1 directories mifs[2]: Total bytes : 1806336 mifs[2]: Bytes used : 612352 mifs[2]: Bytes available : 1193984 mifs[2]: mifs fsck took 1 seconds. mifs[3]: 0 files, 1 directories mifs[3]: Total bytes : 3870720 mifs[3]: Bytes used : 1024 mifs[3]: Bytes available : 3869696 mifs[3]: mifs fsck took 0 seconds. mifs[4]: 5 files, 1 directories mifs[4]: Total bytes : 258048 mifs[4]: Bytes used : 9216 mifs[4]: Bytes available : 248832 mifs[4]: mifs fsck took 0 seconds. mifs[5]: 5 files, 1 directories mifs[5]: Total bytes : 258048 mifs[5]: Bytes used : 9216 mifs[5]: Bytes available : 248832 mifs[5]: mifs fsck took 1 seconds. — MORE — mifs[6]: 566 files, 19 directories mifs[6]: Total bytes : 57931776 mifs[6]: Bytes used : 28429312 mifs[6]: Bytes available : 29502464 mifs[6]
switch: flash_init Initializing Flash… mifs[2]: 10 files, 1 directories mifs[2]: Total bytes : 1806336 mifs[2]: Bytes used : 612352 mifs[2]: Bytes available : 1193984 mifs[2]: mifs fsck took 1 seconds. mifs[3]: 0 files, 1 directories mifs[3]: Total bytes : 3870720 mifs[3]: Bytes used : 1024 mifs[3]: Bytes available : 3869696 mifs[3]: mifs fsck took 0 seconds. mifs[4]: 5 files, 1 directories mifs[4]: Total bytes : 258048 mifs[4]: Bytes used : 9216 mifs[4]: Bytes available : 248832 mifs[4]: mifs fsck took 0 seconds. mifs[5]: 5 files, 1 directories mifs[5]: Total bytes : 258048 mifs[5]: Bytes used : 9216 mifs[5]: Bytes available : 248832 mifs[5]: mifs fsck took 1 seconds. — MORE — mifs[6]: 566 files, 19 directories mifs[6]: Total bytes : 57931776 mifs[6]: Bytes used : 28429312 mifs[6]: Bytes available : 29502464 mifs[6]
Step 3
Delete the config.text file from the flash directory:
switch: del flash:config.text
Are you sure you want to delete “flash:config.text” (y/n)?y
File “flash:config.text” deleted
And Finally, Delete the vlan.dat file from the flash directory and reboot the system
switch: del flash:vlan.dat
Are you sure you want to delete “vlan.dat” (y/n)?y
File “flash:vlan.dat” deleted
To reboot the system:
switch: boot Loading "flash:c2960s-universalk9-mz.122-58.SE2.bin"… — System Configuration Dialog — Enable secret warning ———————————- In order to access the device manager, an enable secret is required If you enter the initial configuration dialog, you will be prompted for the enable secret If you choose not to enter the intial configuration dialog, or if you exit setup without setting the enable secret, please set an enable secret using the following CLI in configuration mode- enable secret 0 <cleartext password> ———————————- Would you like to enter the initial configuration dialog? [yes/no]
switch: boot Loading "flash:c2960s-universalk9-mz.122-58.SE2.bin"… — System Configuration Dialog — Enable secret warning ———————————- In order to access the device manager, an enable secret is required If you enter the initial configuration dialog, you will be prompted for the enable secret If you choose not to enter the intial configuration dialog, or if you exit setup without setting the enable secret, please set an enable secret using the following CLI in configuration mode- enable secret 0 <cleartext password> ———————————- Would you like to enter the initial configuration dialog? [yes/no]
switch: boot Loading "flash:c2960s-universalk9-mz.122-58.SE2.bin"… — System Configuration Dialog — Enable secret warning ———————————- In order to access the device manager, an enable secret is required If you enter the initial configuration dialog, you will be prompted for the enable secret If you choose not to enter the intial configuration dialog, or if you exit setup without setting the enable secret, please set an enable secret using the following CLI in configuration mode- enable secret 0 <cleartext password> ———————————- Would you like to enter the initial configuration dialog? [yes/no]
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Stop settling for slow support and generic security. Get a free, no-obligation Security & Cloud Audit from our Manchester-based engineers.
Ready for a more resilient infrastructure?
Stop settling for slow support and generic security. Get a free, no-obligation Security & Cloud Audit from our Manchester-based engineers.