In the past I had often problems downloading IOS files from TFTP to flash within ROMmon, so I copy the IOS to DRAM without writing it to the flash file system and booted it with this command:Īfter the IOS image is loaded into DRAM it boots automatically the IOS file image (keep in mind that your flash keeps still empty). If you want to download the file to the flash you will use this command:Īfter this the download will start immediately. Now you can decide how recovering the IOS image to your device. You also need to configure a gateway even if you configure the TFTP server IP address within the same subnet:

When you make a mistake, press Enter and type it again because you can’t correct your words by pressing backspace.

When starting in rommon you need to type the following commands manually, don’t copy them from a texteditor to the console. Connect your router via console-cable to a PC and use PuTTY to connect to your device. If you accidentally erased your flash or have a Cisco router with an empty flash, you can upload an IOS image from ROMmon to recover the device to a functional router.

Download tftp cisco switch