[Raspberry Pi 3] Initial Ubuntu Settings on Raspberry Pi, Including How to Change the Hostname

Sun, 15 Mar 2020 00:27:03 +0900

A memo series for Raspberry Pi-related work. This continues the initial setup: changing the hostname, setting a static IP address, and creating a swap file.

Test Environment

Raspberry Pi 3
Ubuntu 18.04.04 LTS 32-bit

Change the Hostname

$ sudo hostnamectl set-hostname rpi3.nosubject.io

Configure a Static IP Address

I wrote about configuring this from a PC before booting in [Raspberry Pi 3] Installing Ubuntu 18.04 LTS (No Keyboard or Display Required), but if you are already logged in to Ubuntu, do the following.

Add the Japanese Locale to Ubuntu 19.10

Sat, 07 Dec 2019 13:56:23 +0900

Even if you set LANG=ja_JP.UTF-8, if the locale definition does not exist you will see error messages like the following.

locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory

Add the Japanese locale with the locale-gen command.

$ sudo locale-gen ja_JP.UTF-8

You can see that it has been added.

Locale on No Subject - nosubject.io -

[Raspberry Pi 3] Initial Ubuntu Settings on Raspberry Pi, Including How to Change the Hostname

Test Environment

Change the Hostname

Configure a Static IP Address

Add the Japanese Locale to Ubuntu 19.10