www.danpol.net

IOS upgrade

(tested on Cisco 1841)

 

• 1.Check if your server is accessible from your router.

 

 

• 2.Copy ios image from tftp server to flash card.

 

 

• 3.Check if new IOS exists on flash card.

  #dir flash:

 

 

• 4.Check how your current IOS is started(for info purpose)

  #show version

 

 

• 5.Configure router to start with new IOS and save changes.

(config)#boot system flash c1841-adventerprisek9-mz.151.M3.bin

(config)#do wr

 

 

• 6.Reload router and check version of your IOS.

#reload
#show version

 

_{dzbanek 2012-02-26}