Rock5/linux/ubuntu

    ROCK 5 >  Working With Linux >  ubuntu

Work with ROCK 5 Ubuntu

Introduction to ROCK 5 Ubuntu

This guide is available for official ROCK 5 (ROCK 5B, etc) Ubuntu images.

ROCK 5 Ubuntu server is an easy to use system. While working with ROCK 5 Ubuntu Server, you will find it do well on playing music, Internet, BT, AI and so on.

ROCK 5 Ubuntu server uses systemd to manage system.

Command prepended by $ means the command may be executed by an unprivileged user. And command prepended by # means the command may be executed by an privileged user. But the symbol, $ or #, is not part of the command.

List of boards supported

ROCK 5B

Access from the Host PC/Laptop

Option 1: HDMI monitor and Mouse

You would see Desktop on HDMI monitor.

Option 2: Serial console

See Serial Console

Option 3: SSH

SSH server is enabled on port 22 of ROCK 5 default image.

Please use angryip to find your board IP address.

$ ping ip-of-device
$ ssh rock@ip-of-device

Default User Account

Non-root User:

User Name : rock
Password  : rock

Root mode

rock is sudo user and switch to root can be done with the following command as user rock:

sudo su

For example:

rock@rock-5b:~$ 
rock@rock-5b:~$ sudo su
[sudo] password for rock: 
root@rock-5b:/home/rock#

There is no password for root user by default. You can set the password via 'passwd root'.

root@rock-5b:/home/rock# passwd root
New password: 
Retype new password: 
passwd: password updated successfully
root@rock-5b:/home/rock#

Partition table

Part Number	Offset	Name	Description
(raw)	32KB	loader1	First stage loader
(raw)	8MB	loader2	U-boot image
1	16MB	boot	Kernel partition, bootable
2	528MB	rootfs	Rootfs

Offset when writing using dd

dd if=idbloader.img   of=/dev/sdx seek=64
dd if=u-boot.itb      of=/dev/sdx seek=16384 
dd if=boot.img        of=/dev/sdx seek=32768 
dd if=rootfs.img      of=/dev/sdx seek=1081344

Radxa APT

Radxa APT source includes stable one and testing one. Stable source includes stable packages while testing source includes latest but maybe unstable packages.

Radxa APT stable source is added by default while testing source is not added.

You can uncomment line like "deb http://apt.radxa.com/focal-testing/ buster main" in file /etc/apt/sources.list.d/apt-radxa-com.list to add testing source.

See file /etc/apt/sources.list.d/apt-radxa-com.list

deb http://apt.radxa.com/focal-stable/ focal main
deb http://apt.radxa.com/focal-testing/ focal main

After adding testing source, you need to update APT and install your needed packages.

$ sudo apt-get update

For more detail about Radxa APT, please see Radxa APT.

Upgrade necessary packages

Here is the example of upgrading rockchip-overlay and kernel packages.

$ sudo apt-get update
$ sudo apt-get install -y rockchip-overlay

Ethernet

ROCK 5B

5B Ethernet

ROCK 5B is equipped with one 2.5G Ethernet port. You can use a network cable (one end connected to the external network port or route) to connect your ROCK 5B to the network. The ROCK 5B will automatically configure the network for your surfing on the Internet.

Ethernet throughput test result table.

Direction	Bitrate
Upstream	2.34 Gbits/sec
Downstream	2.35 Gbits/sec

To test the Ethernet, we need to follow the steps:

Switch to super user mode by command

$ sudo su

Check whether the Ethernet is normal by command, ifconfig, which would show us a network card, eth0 or enP4p65s0 , and the Ethernet IP address. Also, use tool, ping, to connect to a normal domain.

$ ifconfig
$ ping www.baidu.com

If failed to connect to a normal domain. , try

$ sudo dhclient eth0
or
$ sudo dhclient enP4p65s0

Storage device

uSD Card: /dev/mmcblk0
eMMC: /dev/mmcblk1
NVME M.2 SDD: /dev/nvme0n1