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Boot Loader Upgrade
The Cisco Catalyst 3850 Switch shipped from manufacturing is configured to autoboot Cisco IOS XE Software from
the built-in flash and display the autoconfiguration dialog. In special circumstances a boot loader upgrade might be
necessary for a Cisco IOS XE Software image upgrade.
These are the steps to upgrade a Cisco Catalyst 3850 Switch boot loader image:
Step 1. Enable manual boot and power cycle the switch.
Enter the boot manual command, along with the switch name or number:
This is a sample of the switch display following a manual boot:
There is a limited set of commands that are supported at the boot loader command prompt. Enter a question mark
to view the available commands.
Note: Appendix A of this guide shows the complete list of boot loader commands.
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