This guide is for users of Ubuntu Linux.

You can capture information from the running system log to diagnose abnormal behaviour and unexpected outputs.

Connect your PC to the SBC using a Serial Debug Tool.

The default account and password of Ubuntu Linux is as follows:

• khadas - default account user name
• khadas - default password

After logging in with the serial Terminal, you can capture the running system log via the following commands.

khadas@Khadas:~$ cat /etc/fenix-release > ~/system-version.log

khadas@Khadas:~$ sudo dmesg > ~/kernel.log

khadas@Khadas:~$ sudo tar cvzf ~/systemlog.tgz /var/log/

When reporting problems to Khadas Community or support@khadas.com, you can save the log file from your SBC into an SD card, and then send it off to us using your PC.