All yl and zl switches running K.12.25 system software or earlier will have the BootROM updated by this new version of system software. This software download will boot the switch twice, first to update the BootROM to version K.12.12, and then to load the updated system software. Following file copy to the switch flash and initiation of the reload, no additional user intervention is needed. Do not interrupt power to the switch during this important update. Please see the release notes for additional information.
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