CentOS on the Raspberry Pi 3

Installation

Download the official image from mirror.centos.org:
- e.g. curl http://mirror.centos.org/altarch/7/isos/armhfp/CentOS-Userland-7-armv7hl-Minimal-1708-RaspberryPi3.img.xz > CentOS.img.xz
Write the image you downloaded above:
- e.g. xzcat CentOS.img.xz | dd of=/path/to/sd/card status=progress bs=4M; sync

Configuration

Boot your Raspberry Pi:
- root password: centos
Change the default password and add a new user:
- passwd root: type root's password
- adduser username and passwd username: add a new user without sudo privileges
- gpasswd -a username wheel: granting sudo privileges to a new user
Set the system hostname:
- e.g. hostnamectl set-hostname RaspberryPi
Set the system time:
- timedatectl list-timezones | grep Europe: choose your time zone
- e.g. timedatectl set-timezone Europe/Astrakhan
Set the system locale:
- localectl set-locale LANG="en_US.utf8" LC_NUMERIC="C" LC_TIME="POSIX" LC_MESSAGES="POSIX"
- localectl set-keymap us ru --no-convert
- localectl set-x11-keymap us,ru pc105 grp:ctrl_shift_toggle --no-convert
- echo "FONT=UniCyr_8x16" >> /etc/vconsole.conf
Configure SSH settings file /etc/ssh/sshd_config:

Port 2222

LogLevel QUIET
SyslogFacility DAEMON

HostKey /etc/ssh/ssh_host_ed25519_key
HostKey /etc/ssh/ssh_host_rsa_key

Ciphers aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],[email protected]
KexAlgorithms diffie-hellman-group-exchange-sha256,[email protected]
MACs [email protected],[email protected]

AcceptEnv LANG LC_*
ChallengeResponseAuthentication no
LoginGraceTime 1m
MaxAuthTries 3
PrintLastLog no
UseDNS no
UsePAM yes

Uninstall firewalld and install iptables:
- Turn off daemon:
  - systemctl stop firewalld
  - systemctl disable firewalld
- Delete the package and dependencies:
  - yum remove firewalld
  - yum autoremove
- Install the iptables' dependencies: yum install iptables-services iptables-utils
- Reanimate the iptables daemon:
  - systemctl enable iptables.service
  - systemctl start iptables.service

Connection

List available Wi-Fi access points: nmcli device wifi list
Connect to a Wi-Fi network specified by SSID: nmcli device wifi connect "SSID" password "password_for_secured_networks"

Installing 3rd Party Applications

Requirements: yum install bzip2-devel expat-devel gdbm-devel libpcap-devel ncurses-devel openssl-devel readline-devel sqlite-devel tk-devel xz-devel zlib-devel

Python 3.6.3

curl https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tar.xz > Python-3.6.3.tar.xz
tar xf Python-3.6.3.tar.xz
cd Python-3.6.3
./configure --enable-optimizations --prefix=/usr/local --enable-shared LDFLAGS="-Wl,rpath /usr/local/lib"
make altinstall

Useful Stuff

Get temperature of CPU: cat /sys/class/thermal/thermal_zone0/temp
Backup system: dd if=/dev/mmcblk0 bs=4M status=progress conv=noerror | xz --stdout > /path/to/external/disk/backup.img.xz
Pretty prompt: add export PS1='\[\e[0;32m\]\u \[\e[1;34m\]\w \[\e[1;32m\]\$ \[\e[m\]' to .bashrc

Licensed under the terms of the CC0 1.0 Universal License.

mmalchuk/CentOS RPi.md