[nsp] IOS upgrade

[prashant desai]

Hi 

   if i have two IOS images in my flash , how can i know k 
which IOS my router is using , other doubts is if i have 
ios 1 whose file name is one.bin and if i download other 
ios image file say two.bin from the tftp server then how 
can i instruct the router to boot from one.bin or from 
two.bin.  other thing is say if i take the back up of 
one.bin and then download two.bin on to the flash from the 
tftp server then after downloading what steps has to be 
taken so that i can sucessfully upgrade the IOS , and how 
can i confirm that the upgrade is sucessful


i know these are very simple & easy things but i am new to 
networking, & want to learn so kindly help

Thanx & Regards
Prashant Desai




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