I'm having a small problem updating the system image of my 871 router and would appreciate any help given.
I'm currently running IOS 12.4(4) and would like to update to 12.4(11). I have downloaded the correct image (advipservices), copied it to a ready TFTP server and connected via telnet to console, dropping the router into ROMMON (I have 24MB of flash and not enough space to copy the new image on without deleting the old one).
However, when I try to delete the old image file I get a "Permission Denied" error. This means I don't have the space required to proceed with the update. The file permissions on the .bin file are -rwx.
Why you are falling to rommon. You can delete the file without getting into rommon. If you are unable to delete the file, you can try formatting the flash and then TFTP the file back to the flash using TFTP when the router is up or TFTPDNLD procedure even if the router is in rommon. So try formatting the flash when you are up and running and should work for you.
You should be aware of the following:
The documentation says that the tftp will run over the *first LAN port*
On the 871 it runs on the 2nd lan port, FE1, I have come across it many times. Just give it a try and let us know your findings.
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