Ways to upgrade Cisco 3850 in Install mode.

[whizkidraj]

Hello there,

I know that for 3850, there's 2 upgrade types i.e. bundle and install.

So cut to the chase, I am confused about the many commands and ways people use to upgrade 3850 in Install mode.

There are 3 ways that I have seen till now.

1. install add file flash:cat3k_caa-universalk9.16.12.05b.SPA.bin activate commit

2. request platform software package install switch all file flash:cat3k_caa-universalk9.bin new auto-copy

3. software install file flash:cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin verbose new force

I have just tried the 1st command and it worked for upgrading 16.9.4 to 16.12.05b

I just had to enter the 1st command and it did everything on its own.

So which command should I use for which specific purposes.

Please do explain all 3 commands and where to actually use them in 3850 case or if they can be used on other switches or routers, too.

[Leo Laohoo]

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@whizkidraj wrote:

software install file flash:cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin verbose new force

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This command is only valid when upgrading FROM 3.X.X.

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@whizkidraj wrote:

request platform software package install switch all file flash:cat3k_caa-universalk9.bin new auto-copy

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This is my preferred method because I can use the option of "on-reboot" which stops the switch/stack to reboot and, thus, allows me to schedule the switch/stack to reboot at a later date.

Cisco 3850: IOS-XE/Firmware Upgrade

Cisco ISR & ASR 1k Routers: IOS-XE/Firmware Upgrade (Install Mode)