Execute basic commands

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Let's start			Develop on Arm® Cortex®-A7
	Unpack the board	Populate the target and boot the image		Execute basic commands	Use the demo launcher

1. Overview[edit source]

This stage will explain you how to connect the Linux terminal of your board to your host computer through the ST-LINK/V2-1.
Then you will see how to execute basic commands with the Linux command line interface in order to be familiarized with the Linux console.

2. The serial terminal[edit source]

The serial terminal will allow you to communicate with the board trough a UART serial interface.

Install minicom

 sudo apt-get install minicom

Get the ttyACM device instance that need to be used to access the ST-LINK/V2-1

 ls /dev/ttyACM*
/dev/ttyACM0

Connect the minicom to the /dev/ttyACM0 device

 minicom -D /dev/ttyACM0
Welcome to minicom 2.7

OPTIONS: I18n 
Compiled on Nov 15 2018, 20:18:47.
Port /dev/ttyACM0, 15:56:03

Press CTRL-A Z for help on special keys

Press the reset button to reset the board. You should see logs displayed in the minicom window

Put some starting logs here

3. Basic commands[edit source]

3.1. Printing distribution specific information[edit source]

 lsb_release -a
LSB Version:    core-4.1-noarch:core-4.1-arm
Distributor ID: openstlinux-weston
Description:    ST OpenSTLinux - Weston - (A Yocto Project Based Distro) 2.4+openstlinux-4.14-rocko-mp1-18-11-26
Release:        2.4+openstlinux-4.14-rocko-mp1-18-11-26
Codename:       rocko

3.2. Printing system information[edit source]

 uname -a
Linux stm32mp1-boards-rev[b/c] 4.14.48 #1 SMP PREEMPT Tue Nov 27 14:41:52 UTC 2018 armv7l armv7l armv7l GNU/Linux

3.3. Printing Linux kernel and GCC versions[edit source]

 cat /proc/version
Linux version 4.14.48 (xxxx@yyyy) (gcc version 7.3.0 (GCC)) #1 SMP PREEMPT Tue Nov 27 14:41:52 UTC 2018

3.4. Printing the amount of disk space available on all mounted file systems[edit source]

 df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/root       719M  347M  334M  52% /
devtmpfs        372M     0  372M   0% /dev
tmpfs           436M     0  436M   0% /dev/shm
tmpfs           436M   14M  423M   4% /run
tmpfs           436M     0  436M   0% /sys/fs/cgroup
tmpfs           436M  4.0K  436M   1% /tmp
/dev/mmcblk0p4   58M  7.7M   46M  15% /boot
tmpfs           436M  160K  436M   1% /var/volatile
/dev/mmcblk0p7   15G   14G     0 100% /usr/local
/dev/mmcblk0p5   15M  8.7M  4.7M  65% /vendor
tmpfs            88M     0   88M   0% /run/user/0