Recover Missing IOS on Cisco Catalyst 2950 Switch

  ICND1 CCENT, Networking

Caution!

This takes about 2 hours to perform.  Proceed only if necessary!

Requirements

  • minicom connection to the console port
  • copy of the IOS software
    • c2950-i6k2l2q4-mz.121-22.EA14.bin
    • copy the file to the /root folder on the minicom  server.

Procedure

Switch

switch: flash_init
switch: load_helper
switch: dir flash:
copy xmodem: flash:c2950-i6k2l2q4-mz.121-22.EA14.bin

Minicom host

  • <Ctrl>+<A> then <S>
  • Scroll down to the file name and press <Space> then <Enter>
  • After a few moments, you’ll see the file transfer begin.
    • If the transfer is successful, you’ll return to the switch: prompt
    • If not, repeat the process. 🙁

Switch

boot flash:flash:c2950-i6k2l2q4-mz.121-22.EA14.bin

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