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49 lines
1.7 KiB
Markdown
# Building with Multipass
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In order to build an Armbian image from scratch, whether for development purposes or to [apply user customizations](https://docs.armbian.com/Developer-Guide_User-Configurations/) on top of a base image, a build environment is required. Per the Armbian documentation, Ubuntu 24.04 is [the officially supported](https://docs.armbian.com/Developer-Guide_Build-Preparation/) build platform.
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[Multipass](https://multipass.run/) that is designed for quick and painless provisioning of Ubuntu VMs.
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### Creating a VM and preparing for build
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Multipass is [available](https://multipass.run/install) for macOS, Windows and Linux platforms.
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Once you have multipass installed, a Jammy (22.04) instance with 4 CPUs, 4GB of RAM and 25GB of space available can be provisioned with a single command:
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```bash
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multipass launch --cpus 4 --disk 25G --mem 4G --name jammy
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```
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### Clone the build repo
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You can run commands direct on the instance to clone the build repo:
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```bash
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multipass exec jammy -- bash -c "git clone --depth 1 https://github.com/armbian/build"
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```
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### Use an instance
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Then you can get a shell to the instance and run the build as needed:
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```bash
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C:\> multipass shell armbian
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Welcome to Ubuntu 22.04.1 LTS (GNU/Linux 5.4.0-48-generic x86_64)
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Last login: Tue Jan 30 12:23:08 2024 from 172.22.111.1
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# Let's get building!
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ubuntu@armbian:~$ cd build
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ubuntu@armbian:~/build$ ./compile.sh BOARD=orangepizero ... etc
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```
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### Share data with an instance
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The recommended way to share data between your host and an instance with Multipass is the command:mount
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```bash
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multipass mount /my/dir jammy
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multipass info jammy
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```
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Mounts: /my/dir => /my/dir
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From this point on will be available inside the instance./my/dir
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