4. Configure SPP.
Server Device
# bluez.sdptool add --channel=22 SP
# ./rfcomm -r listen /dev/rfcomm0 22
Waiting for connection on channel 22
Connection from XX:XX:XX:XX:XX:XX to /dev/rfcomm0 <These lines will be seen when
client comes>
Press CTRL-C for hangup
Then, create a new instance of terminal to screen the data over bluetooth serial.
$ cat /dev/rfcomm0
Client Device
# bluez.sdptool add --channel=22 SP
# ./rfcomm -r connect /dev/rfcomm0 YY:YY:YY:YY:YY:YY 22
Then, create a new instance of terminal to send data, for example, a new instance of ssh.
# echo "test" > /dev/rfcomm0
NOTE: rfcomm is not available in this command. If required, you can copy the binary to the Edge Gateway from an
AMD64-based system running Ubuntu 16.04 or above.
Restoring Ubuntu Server
You can restore Ubuntu Server using one of the recovery methods defined for Ubuntu Server. For more information, see
Restoring Ubuntu Core 16.
Creating the recovery USB flash drive
Prerequisites:
● Service Tag of the Edge Gateway
● A Windows computer with administrator rights and at least 8 GB of available storage space to download the Dell ISO
recovery image
● A blank USB flash drive with at least 8 GB of storage space. These steps delete all data on the USB flash drive.
● .NET Framework 4.5.2 or higher
1. Download and save the Dell ISO recovery image file from:
● For Windows: dell.com/support/home/us/en/19/drivers/osiso/win
● For Ubuntu: dell.com/support/home/us/en/19/drivers/osiso/linux
2. Download and install the Dell OS Recovery Tool on your computer.
3. Launch the Dell OS Recovery Tool.
4. Click Yes in the User Account Control prompt.
5. Connect the USB flash drive to the computer.
6. Click Browse and navigate to the location where the Dell ISO recovery image file is saved.
7. Select the Dell ISO recovery image file and click Open.
8. Click Start to begin creating the bootable USB recovery media.
9. Click Yes to continue.
10. Click OK to complete.
Setting up the operating system
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