06-30-2008 07:37 AM - edited 03-03-2019 10:32 PM
I have a 2811 that crashes when trying to load the IOS in memory. I can see it decompressing the image but its not able to load it. I have a new chassis that I want to use but I need to get the config out of the bad chassis. How can I do this? Can I use the rommon? If not do I have other options? Can I physically move the NVRAM chip from bad to good chassis?
Thanks,
Diego
06-30-2008 07:40 AM
Your best bet is to go into rommon, initialize flash (if it isn't already) and see if you can copy the startup-config to flash. Let us know how it goes.
06-30-2008 08:19 AM
If I remember correctly you can view the config in rommon using these commands.
flash_init
more nvram:startup-config
Should display the config in rommon.
Mark
*Edit* It could also be
more nvram:/startup-config
06-30-2008 11:01 AM
Please post if more works, it's not available in the devices I tested with.
06-30-2008 11:44 AM
Sorry "flash_init" is not available neither is "more". Right now I am going to try to load a small IOS in zDRAM and hope I can get the router to boot from that. "Regular" IOS is a CCME voice version.
Wish me luck
Diego
06-30-2008 11:48 AM
Try a dir /all or just dir and see if you see the flash card.
06-30-2008 12:20 PM
dir only works like this "dir flash:" which is nice but I would need to see the nvram not the flash. Still trying to boot an IP base OS from DRAM to see if I can they get access to nvram.
Thanks,
Diego
06-30-2008 12:33 PM
That's sounds good, I keep getting permission denied on nvram:startup-config. I'll see if I can get it working for future reference.
06-30-2008 11:57 AM
That's probably your best bet to boot a different IOS from a CF card.
06-30-2008 06:48 PM
Looks like I am SOL. The router will not boot any IOS from any device flash or DRAM. At one point I saw a file called AUTOSAVE on the flash but it dissapeard before I had a chance to display it. Could that have been the config I was lookig for? Where did it go?
Anyway, I find it hard to believe that there is no other way to access the NVRAM other than via the IOS but for now I must give up and rebuild the router config from scratch.
Thanks,
Diego
07-01-2008 05:00 AM
TAC might be able to help too.
07-01-2008 06:55 AM
I tried them but they didn't have the silver bullet I was looking for.
Diego
07-01-2008 11:10 AM
Find another router that takes the CF card. Rommon on the proper IOS, then pull out the config. Not quick, but it should get the job done.
07-01-2008 11:16 AM
Sorry but if it was that simple I would have my config already. The config is not on the CF card. It is in the NVRAM which is built into the motherboard. I have not found any technique that will copy data out of the NVRAM on the motherboard without booting an IOS and my router will not boot any IOS at this time.
Thanks,
Diego
07-01-2008 11:41 AM
Most IOS boot failures are due to bad/insufficient ram, image corruption, or sometime, configuration issues.
Have yo ruled out all three in trying to boot your router ?
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