3.
Run the following command to trigger native eMMC recovery partition:.
$ sudo efibootmgr -n $(efibootmgr | grep "factory_restore" | sed 's/Boot//g' | sed 's/
[^0-9A-B]*//g') ; reboot
Option 2: Restoring during system POST
CAUTION: These steps delete all the data on your Edge Gateway.
1.
Connect a USB keyboard to the Edge Gateway.
2.
Power on the Edge Gateway.
The Power LED turns solid green while the Cloud LED is off.
3.
During the first 20 seconds after applying power, press
Ctrl
+
F
repeatedly to trigger the operating system recovery.
4.
When the Cloud LED starts blinking green, continue with one of these options:
NOTE: If the Cloud LED does not start blinking after 50 seconds, power off the Edge Gateway and repeat Steps 2
and 3.
Table 16. Start or cancel restoration during system POST
To start restoration
To cancel restoration
•
Press
y
, then press
Enter
.
The Cloud LED changes to solid green indicating that recovery
is in progress. Once restoration is complete, the Cloud LED
turns off and the system reboots. The restoration takes about
2 minutes to complete.
•
Press
n
, then press
Enter
. Or, if the system does not
detect any key-press within 30 seconds.
The Cloud LED turns off, and the system reboots.
Restore Ubuntu Core 16 from USB flash drive
CAUTION: These steps will delete all the data on your Edge Gateway.
Prerequisites
Create the recovery USB flash drive. For more information, see
Creating the recovery USB flash drive
.
Procedure
1.
Insert the USB flash drive into the USB port on the Edge Gateway.
2.
Power on the Edge Gateway.
3.
The Edge Gateway boots through the USB flash drive and flashes the Ubuntu Core installation image into storage automatically.
NOTE: When the installation images are being flashed to the storage, the Power LED is solid green and Cloud LED is
blinking green.
4.
The system powers off after the installation is complete.
NOTE: The installation takes about 3 minutes to complete.
5.
Remove the USB drive after the Edge Gateway powers off.
6.
Power on the Edge Gateway again to continue the installation. The system reboots several times during the installation and
takes about 10 minutes to complete.
Once installation is complete, a login screen is displayed.
7.
At the login screen, enter the default user name and password:
admin
.
The Edge Gateway is now ready for use.
NOTE: For more information about accessing Ubuntu on the Edge Gateway remotely, see
Boot up and log in –
Remote system configuration
.
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