I'm currently pursuing to take my CCNA and am currently studying for it, but have recently encountered a problem with one of my 1760 routers that I can not solve.
Yesterday I went to boot up my router like normal, however when I went into hyperterminal I noticed the router was in Rommon mode. Thinking I could change the configuration registry, I tried to bypass the NVRAM by using confreg 0x2142. However this still causes the router to go into Rommon mode. I am getting an error that states that there is insufficient memory to load the IOS image. It looks like this..
I have used the dir flash: command and can see the IOS image, and try to boot from it (boot flash:iosimagename) but it will still go back into rommon mode. I also just swapped the RAM from my other 1760 into this 1760 and it booted up and went into normal configuraiton mode without any issues. However, the other router now will not load it's IOS image and I get the exact same error.
Im at a loss here, and have searched to figure out where or how I can just wipe the router clean to try and start fresh, but cannot get out or Rommon mode. The only thing I can think of is that the RAM went bad since it wont boot up either machine. Any thoughts?? Please help so I can resume my studies. Thank you!
Remove all the Network Modules (NMs) and WAN Interface Cards (WICs) from the router.
Turn the router on.
If the router does not come up after removing the NM and WIC, go to Step C.
If it comes up fine, change the iomem configuration percentage
Router(config)#memory-size iomem 5 !-- The command above adjusts the percentage of DRAM to use for I/O Memory Router(config)#exitRouter#copy running-config startup-config Destination filename [startup-config]?
Turn the router off and reseat the NM and WIC cards.
Turn the router on. It should boot up fine with the NM and WIC cards.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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