Upgrading IOS images for SSH support on 4506 with single Sup IV engine
I have been asked to upgrade the IOS images on three 4506 switches with a single Supervisor IV engine in each to allow for SSH2 access.
The current image is cat4000-i5s-mz.122-25.EWA.bin
I have uploaded cat4000-i5k91s-mz.122-25.EWA14.bin to bootflash on each Supervisor engine.
The ROM on each SUP IV is 12.1(20r). I don't want to have to upgrade the ROM version.
Will the cat4000-i5k91s-mz.122-25.EWA14.bin image retain all the current features of the current image and provide SSH2 support, without requiring a ROM upgrade?
Each switch has 512 Mb of RAM.
If this image will accomplish what I want, what are the commands used to select the new image from bootflash. I'm familiar with image updates on fixed chassis switches using the boot system flash command.
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