How to recover the Flash memory

Unanswered Question
Aug 9th, 2007

i have 2811 router and incidently the Flash erased, i have a backup of the IOS file (.bin) i did upload it but when the router reloaded it's not goes up again.

please help in this issue.

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Pavel Bykov Thu, 08/09/2007 - 00:59

You forgot to set the boot variable, pointing to a new BIN file.

System needs to know which file to use to boot IOS.

E.g.:

(config)#boot system flash c2800nm-entservicesk9-mz.123-14.T7.bin

or

boot system flash (config)#disk2:c7200-jk9o3s-mz.123-21.bin

Depending where image is located (do a "dir /a" in exec).

Also, system normally tries to search flash for an image and boot something automatically.

I think the problem was that there was a line in configuration pointing to an old image and it couldn't find it.

But now you're in rommon, so this doesn't matter now. You need to follow rommon procedures.

Hope this helps in the future

mohamedaman Thu, 08/09/2007 - 02:55

the problem wasn't a dupplicat IOS the problem is the whole Flash memory erased.

rightnow i'm uploading the BIN file via xmodem but how can i recover the rest of the fils as i lost it (SDM,....etc)

krishnakomiti Thu, 08/09/2007 - 02:20

Hi,

Upload IOS via "xmodem" but it will take 3 to 4 hours to upload the software into router.

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