Recovery Mode requires a direct connection to the unit; only the wired/fibre connections are available for recovery.
A laptop / PC/ MAC is required to run a web browser to connect to the Recovery Web-GUI.
It may be required to change/add an IP address of the network interface card (NIC).
A software upgrade (.img) file for the case where a unit is failing to boot to operational mode.
- Form an Ethernet connection to the unit.
- Configure an appropriate IP address for the NIC connected to your unit i.e 169.254.1.100, Subnet 255.255.0.0
- If the unit is powered off, turn it on and wait (say) 30 seconds. If it is on, skip to next.
- Power off the unit briefly – i.e. turn it off and then back on again within 5 seconds.
- If the LEDs of the main Ethernet port can be observed, wait for the 2 LEDs to light red. If not, wait approx 10 seconds from power-on. This is the time taken to boot to Recovery Mode.
- In a web browser on the laptop, browse to http://169.254.1.1 .
NOTE : This step may take several attempts; while in Recovery Mode, the unit will look at each interface in turn for a connecting browser. If the laptop makes the request for the webpage while the interface is inactive, the request will fail. The solution is to refresh the browser.
NOTE ALSO: Web browsers remember if a web server uses https and if will override a request to go to http at the same IP address. Since the Recovery page uses http, if the browser being used for recovery has ever successfully navigated to https://169.254.1.1 (e.g. the main Web GUI of the unit being recovered), then the browsing history should be deleted before attempting recovery. This will allow the browser to connect directly to the http server.
SUGGESTION : make a bookmark of the link above for ease of entry.
- The main Recovery Mode webpage looks like:
- If there is no contact with a web browser, Recovery Mode will exit after 1 minute and will continue to a normal boot. Hence if Recovery Mode is desired but the webpage was not successfully requested and served, repeat the procedure from step 4.
- If a webpage is served from Recovery Mode, the user has 60 seconds to compete the recovery activities.
NOTE : Refreshing the webpage will restart the countdown timer.