Escape flash load of Cisco Autonomous AP from Expect script

Question

I am trying to use a expect script to stop the loading of the flash on a Cisco Autonomous AP so that I can get into the rommon.

Loading "flash:/ap3g1-k9w7-mx.124-25d.JA/ap3g1-k9w7-mx.124-25d.JA"...###

If you are sitting a keyboard pressing the escape key at this point will stop the process and give you the option to abort and put you to a rommon prompt.

With the expect script I have tried:

• Sending an escape

  send "\x1B"
  

  this is sending the hex value for Esc. This is ignored and the process continues. However this works on a WLC device so I know the value is valid.

• Sending a break

  send "\x1D"
  expect "telnet>"
  send "send Break\r"
  

  this is sending the hex value for Ctrl+] which is the escape character for but it puts it to telnet> prompt. Sending the break comes back from the telnet and continues loading the flash. On another device that stops the load and puts the device in rommon.

I have also tried the hex for the F1 key and for an arrow key because those work from the keyboard also.

Answer 1

The send "\x1B" will work on an AP as long as the device is set up to allow password recovery.