Reset module 15 in the CatOS and
do a immediate switch console 15.
Now do a send break at the MSFC console. Change the BOOTLDR to the correct settings, save and reset.
The other method of recovery is given below.
Visit the following page on CCO for
the physical layout of the MSFC
http://cio.cisco.com/univercd/cc/td/doc/product/lan/cat6000/cfgnotes/78_6953.htm
Remove the bootflash from the MSFC and boot the switch. This time you should be
able to get into the MSFC by doing a "switch console". You'll see that the MSFC
is in ROMMON. Type the command "set" and see what the bootvariables point to
rommon 2 > set
PS1=rommon ! >
BOOTLDR=bootflash:c6msfc-boot-mz.121-6.E
BOOT=bootflash:c6msfc-jsv-mz.121-6.E,1;
?=1
Now change the bootvariable/Boot loader to nothing and set the Config Register
to 0x0
rommon 2 > BOOT=
rommon 3 > BOOTLDR=
rommon 4 > CONFREG=0x0
Note that the the commands are all upper case. Now type "sync" and then a "reset"
rommon 5 > sync
rommon 6 > reset
System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE
Copyright (c) 1998 by cisco Systems, Inc.
Cat6k-MSFC platform with 131072 Kbytes of main memory
Now do a "set" and make sure the changes you have done are there
rommon 1 > set
PS1=rommon ! >
BOOT=
BOOTLDR=
CONFREG=0x0
rommon 2 >
Now put back the bootflash on to your MSFC and boot the switch and hopefully
you should be able to do a "switch console" to get into the MSFC