CAUTION: To install OS10 on a switch running OS9 or another third-party OS, you must first uninstall the existing OS. The Uninstall option deletes the switch configuration and all disk partitions.
To uninstall OS9 or a third-party OS on a Dell ONIE switch, boot up the switch and watch for the ONIE boot menu to display. Immediately use the Arrow keys to scroll the asterisk and select the
ONIE: Uninstall OS option to avoid the switch booting to
ONIE: Install OS by default.