Dual Boot Behavior - Digi IX20 User Manual

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Table of Contents

System administration

Firmware update completed, reboot device

6. Reboot the device to run the new firmware image using the

Rebooting system

7. Once the device has rebooted, log into the IX20's command line as a user with Admin access

and verify the running firmware version by entering the

> show system

Current Time

Dual boot behavior

By default, the IX20 device stores two copies of firmware in two flash memory banks:

The current firmware version that is used to boot the device.

A copy of the firmware that was in use prior to your most recent firmware update.

When the device reboots, it will attempt to use the current firmware version. If the current firmware

version fails to load after three consecutive attempts, it is marked as invalid and the device will use

the previous firmware version stored in the alternate memory bank.

If the device consistently loses power during the boot process, this may result in the current firmware

being marked as invalid and the device downgrading to a previous version of the firmware. As a result

of this behavior, you can use the following procedure to guarantee that the same firmware is stored in

both memory banks:

IX20 User Guide

: 0040FF800120

: Fri, Sept 29, 2023 12:10:00 +0000

: 42 seconds (42s)

Update system firmware