How mature is Raspberry Pi (RPI). A brief overview.
- 1 What is Raspberry Pi
- 2 Installing Arch Linux ARM
- 3 The first operation
- 4 Video
- 5 Serial Console
What is Raspberry Pi
Installing Arch Linux ARM
In this manual will describe only essential moments for different RPI. Other procedures are the same instructions for ArchLinux. The only exception is the basic initialization and installation of equipment. It is further assumed that the configuration is performed on a machine running Archlinux.
If you own an official card provided with your RPI (for example) recommend before installing Arch ARM Linux to backup using
dd. The path must be specified to the device
/dev/sdX not for another partition
# dd if=/dev/sdX of=$HOME/backup_RPi.img
Installation is similar to backing card. Download the image file from Arch Linux ARM
# dd bs=1M if=/path/to/archlinux.img of=/dev/sdX
After inserting the card into the slot on the PPi should boot the base system Arch Linux ARM.
The downloaded image file is approximately 2 gigabytes of which is /boot 94 megabytes and / 1.8 gigabytes. If you used a larger card to 2GB, so I recommend the rest of the card to connect as /home (or /usr). Clearance must be formatted using the example Gparted. At the first possible opportunity (after booting RPI or after mounting the card in the computer) need to be adjusted
# sudo vim /etc/fstab
For example, add
/dev/mmcblk0p3 /home ext4 defaults 0 0
The first operation
Summary of the official procedure:
Remote SSH access
If you do not use the HDMI output RPI and you will access the device using SSH, the following applies.
Root pasword is:
root. I recommend to perform key exchange SSH_Keys.
$ ssh firstname.lastname@example.org (Use your Ip RPI)
# vim /etc/locale.gen
en_US.UTF-8 UTF-8 and
generate localization files
Setting the time and date using OpenNTP
Setting the time and date manually
Changing the root password
After the first start RPI is native root password to root. It is therefore necessary to change it. Executed after power command
# passwd root
Adding another user
useradd to add the user.
# useradd username
# su - # visudo
add the line "USER ALL=(ALL) ALL" below the line root ALL=(ALL) ALL, where "USER" is your username
The genericdriver can be used.
Edit the default /boot/cmdline.txt
Change loglevel to 5 to see boot messages
Change speed from 11520 to 38400
# console=ttyAMA0,38400 kgdboc=ttyAMA0,38400
Start getty service
# systemctl start getty@ttyAMA0
Enable on boot
#systemctl enable getty@ttyAMA0.service
Creating the proper service link:
# ln -s /usr/lib/systemd/system/getty@.service /etc/systemd/system/getty.target.wants/getty@ttyAMA0.service
Then connect :)
# screen /dev/ttyUSB0 38400