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Forum Discussion
M4300 cumulative firmware
Hi, I have dual M4300 8x8 switches that I need to update the firmware for. These units are three firmware versions behind. Are the fixes and enhancements cumulative, such that if I upgrade directly ...
Hi
Unless anything is explicitely outlined - so far, that is - updating the currently inactive image and the booting off of it was all needed. The content of one out of the 2 flash partition is completely overwritten so not cumulative update, it actually replaces the complete image.
Though reading the changelog is certainly always a good idea.
So long as you don't overwrite your currently-executed firmware you can usually (and in the worst case over the serial console bootloader menu) boot back into the previous version.
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