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Config register: IOS from flash
Relaxercise
Registered Users Posts: 2 ■□□□□□□□□□
in CCNA & CCENT
Hi,
I'm currently studying for the CCENT exam and thought this bit was a little odd: When booting up involves getting the lowest numbered IOS image from flash, it seems the lowest number image would be the oldest. If each IOS that's added to flash gets a higher number, that means the lowest numbered IOS is the oldest. Why would a boot sequence default to the oldest instead of the newest IOS? To be 'safe' perhaps?
Thanks
Ian
I'm currently studying for the CCENT exam and thought this bit was a little odd: When booting up involves getting the lowest numbered IOS image from flash, it seems the lowest number image would be the oldest. If each IOS that's added to flash gets a higher number, that means the lowest numbered IOS is the oldest. Why would a boot sequence default to the oldest instead of the newest IOS? To be 'safe' perhaps?
Thanks
Ian
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Optionsfluk3d
Member Posts: 141 ■■■□□□□□□□
You usually specify which IOS to boot prior to reloading the switch/router in order for the system to load the new IOS upon reload.
7 Steps to Upgrade IOS Image on Cisco Catalyst Switch or Router"Imagination is more important than knowledge." - Albert Einstein -
OptionsRelaxercise
Registered Users Posts: 2 ■□□□□□□□□□
Right, but if you don't specify, and the register ends with '01' it goes through the IOS files on flash starting from the oldest file, which I thought was odd. Thanks for the reply