configure terminal no boot system # Removes old boot instructions boot system flash:c800-universalk9-mz.SPA.159-3.M10.bin exit write memory # Critical: Saves the boot change Use code with caution. Copied to clipboard
If your router supports USB, this method is very useful for remote sites or routers without network connectivity.
The should list your new image.
: After a successful upgrade, review Cisco’s release notes for 15.9(3)M10 to explore new features like enhanced VRF support, improved NAT redundancy, or updated cryptographic algorithms. Schedule your next upgrade well before the image reaches end-of-support.
command to activate specific feature sets if you are moving from a "Base" to a "Security" package. specific memory requirements for a particular 800-series model before you start?
To move the binary image from your local workstation onto the internal flash memory of the router, you must configure a local network file transfer server. TFTP, FTP, and SCP are the most common methods used. Method A: TFTP Server Setup
Review the bytes available at the bottom of the output. If space is tight, remove old backup images using delete flash:filename.bin . 3. Back Up Current Configurations
There are two primary methods to install this image: via TFTP/FTP (Active Network) or via USB Drive. Method A: Upgrading via TFTP/FTP (Recommended) your computer directly to the router via Ethernet.
Router# show bootvar
Issue the command boot flash:c800-universalk9-mz.SPA.159-3.M10.bin manually inside Rommon.
Restart the system by running the reload command. After the boot sequence completes, log back into the device and check the operational software status: Router# show version Use code with caution.
Save the modified configurations directly into the Non-Volatile RAM (NVRAM), then execute a cold restart.
Download c800universalk9-mz.SPA.159.3-M10.bin to a local machine running a TFTP/FTP server (e.g., SolarWinds, TFTPd64). 3. Installation Methods
The Cisco 800 Series offers several ways to install a new image. The choice depends on your current router state and network environment. The most common approach uses a TFTP server, but bundle installations and USB drives are also viable options, with Cisco bundle images providing a more robust installation method for IR800-series platforms.
Router# copy running-config startup-config