2022-07-12 16:39:43 +02:00
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# Custom SD image for Raspberry Pi 4
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This repository contains the instructions and configuration to build a SD image with a bigger /boot partition size and my SSH public keys
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2022-11-14 20:05:47 +01:00
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## Building
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2022-07-12 16:39:43 +02:00
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1. Enable QEMU on the host machine by adding the following option
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```{nix}
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boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
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```
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2. Build the image
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```{bash}
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nix-build '<nixpkgs/nixos>' -A config.system.build.sdImage -I nixos-config=./sd-image.nix --argstr system aarch64-linux
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```
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2022-11-14 20:05:47 +01:00
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## Usage
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1. Extract the image
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```{bash}
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nix-shell -p zstd --run "unzstd rp4-image.img.zst"
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```
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2. Burn it to an SD card
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``` bash
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sudo dd if=rp4-image.img of=/dev/mmcblk0 bs=1M status=progress conv=fsync
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```
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