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MSFC2. Preventing boot loop due to missing file

if your MSFC2 is configured to boot a missing or corrupted images file, it will fall into loop boot. To prevent it, you should boot MSFC2 without its boot configuration


Switch to MSFC2 from your supervisor (SP) by the following command:

sup> switch console

You should see that MSFC2 is in boot loop. Send several Ctrl-Break until you will see

rommon 1>

Then configure MSFC2 to skip its boot configuration

(A break-sequence has been sent here) 

monitor: command "boot" aborted due to user interrupt
rommon 1 > confreg 0x42

You must reset or power cycle for new config to take effect
rommon 2 > reset

Then manually boot a valid boot helper or system image:

rommon 3> boot bootflash:c6msfc2-jsv-mz.121-8b.E20.bin

After booting is finished, you can configure boot settings
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