Router(boot)> mode ---What is this?

Unanswered Question
Jan 23rd, 2008
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My 2501 router boots and comes to a mode where the prompt looks like this:


I have very limited commands available in this mode. Can someone please let me know how to go back to normal mode and what this mode is?

Thanks in advance!

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Overall Rating: 5 (2 ratings)
Joe Clarke Wed, 01/23/2008 - 21:45
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This is boot helper or boot mode. This mode is there to help one upgrade IOS on run-from-flash devices. You can get to this mode in one of two ways. Either your main IOS image is missing or damaged, or the config-register has been set to something like 0x2101. Do a show ver. If you see the config register is set to anything other than 0x2102, enter config mode, and do:

config-register 0x2102

Then exit config mode and reload. Do not save the config. If all goes well, you should reboot from the main IOS image in flash.


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