Cisco Routers upload iOS (one)

(1) View iOS on the router.

Through the dir Flash: command to view the iOS version, the size of the flash space and the amount of remaining.
If the remaining space is not enough to upload the new iOS, the upload will be an error. You need to delete the original iOS at this time.

(2) Due to insufficient flash space, you need to remove the original iOS and view the size of the flash space.
Qyt#delete Flash:c1841-adventerprisek9-mz.151-3.t2.bin//Delete the original iOS.
Delete filename [c1841-adventerprisek9-mz.151-3.t2.bin]?
Delete Flash:/c1841-adventerprisek9-mz.151-3.t2.bin? [Confirm]
qyt#
Note: If iOS is deleted by mistake, do not shut down or restart the router and recover iOS directly from the TFTP server.

(3) Open TFTP software 3CDaemon, set the TFTP directory, put iOS into the TFTP settings directory, while shutting down the computer host firewall.

(4) Restore iOS from the TFTP server via the "copy tftp:flash:" Command.
The 10.8.3.134 is the local host address, which must be up to and from the router interface address.


(5) Check if iOS upload is successful. If successful, the restart test is normal.

Cisco Routers upload iOS (one)