# To set the boot image: boot system flash0:c1900-universalk9-mz.SPA.158-3.M7.bin # To copy from a server: copy tftp: flash: Address or name of remote host []? 192.168.1.100 Source filename []? c1900-universalk9-mz.SPA.158-3.M7.bin Use code with caution. Copied to clipboard C1900: Hardware platform (Cisco 1900 Series). universalk9: Universal feature set with strong encryption. mz: Indicates the file is memory-resident and compressed. SPA: Digitally signed by Cisco. 158-3-M7: The specific software version (15.8(3)M7). bin: Binary file format.
: The binary executable file format used for router firmware. Key Specifications Release Date C1900-universalk9-mz-spa-158-3-m7-bin