Cisco 2811 Router IOS 15 firmware upgrade

Cisco 2811 Router IOS 15 firmware upgrade

Select the appropriate IOS 15 version according to your CF card size and memory option:

http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-packaging/product_bulletin_c25-557281.html

Boot up the system with an already working CF Card. If you do not have a working CF Card installed please follow the procedure howto transfer image with Xmodem
When the Cisco 2811 up and running, you can replace the CF card to larger one if needed according to the IOS 15 upgrade guide.
ena
get admin privileges
format flash:
format the newly replaced flash card, ensure that system is able to see/write
conf t
enter into configuration mode
int FastEthernet0/0
enter into port configuration of Ethernet port which is directly connected with the TFTP server
ip address 192.168.1.2 255.255.255.0
setup IP address on Router side, ensure that Router and PC can reach/ping each other, for example Windows Firewall should be turned off for the TFTP transfer.
no shut
port up
exit
copy tftp: flash:
start the TFTP copy process
show flash:
list the flash content
 verify flash:c2800nm-adventerprisek9-mz.151-4.M8.bin
ensure that the copied image will be usable by the System – checking hash
conf t
enter into configuration mode
boot system flash:c2800nm-adventerprisek9-mz.151-4.M8.bin
setup the proper boot image name with the proper URL – the same URL that was checked by the verify command!
exit
wr
write configuration
reload
reboot the system

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