If you don’t have enough room in flash memory to store both copies, or if the flash memory is new and no file has been written to flash memory before, the router will ask to erase the contents of flash memory before writing the new file into flash memory. You will still need to specify this when prompted during the download. bin, and some operating systems like Windows will truncate or hide the file extension. This command requires the IP address of the TFTP host and the name of the file you want to download.īut before you begin, make sure that the file you want to place in flash memory is in the default TFTP directory on your host since when you issue the command, TFTP won’t not ask you where the file is. No worries-you just download the file from a TFTP host to flash memory by using the “ copy tftp flash” command. What happens if you need to restore the Cisco IOS to flash memory to replace an original file that has been damaged, or if you want to upgrade the IOS?
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