Update main.yml

.github/workflows/main.yml

@@ -1,33 +1,40 @@
-on: [push, pull_request,workflow_dispatch]
+name: Build OS Image
+on:
+  workflow_dispatch:
 
 jobs:
-  armv7_job:
-    # The host should always be Linux
-    runs-on: ubuntu-22.04
-    name: Build on ubuntu-18.04 armv7
+  build-default-image:
+    name: Build OS image
+    runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: uraimo/run-on-arch-action@v2
-        name: Run commands
-        id: runcmd
+      - uses: actions/checkout@v2.3.4
+
+      - uses: cachix/install-nix-action@v13
         with:
-          arch: aarch64
-          distro: ubuntu22.04
+          # Pin because the latest all-hardware profile changes
+          # https://github.com/NixOS/nixpkgs/pull/128532
+          nix_path: nixpkgs=https://github.com/NixOS/nixpkgs/archive/c23146505c35a07bafbecf36af4f9ebde2bb7dfd.tar.gz
+          extra_nix_config: |
+            extra-platforms = aarch64-linux
 
-          # Not required, but speeds up builds by storing container images in
-          # a GitHub package registry.
-          githubToken: ${{ github.token }}
 
-          # Set an output parameter `uname` for use in subsequent steps
-          run: |
-            uname -a
-            echo ::set-output name=uname::$(uname -a)
-            apt-get update
-            apt install -y docker.io
-            docker ps
-            docker run nixos/nix nix-build '<nixpkgs/nixos>' -A config.system.build.sdImage -I nixos-config=./sd-image.nix
+      - run: |
+          sudo apt -y install qemu-user-static
 
-      - name: Get the output
-        # Echo the `uname` output parameter from the `runcmd` step
+      - name: Test binfmt
         run: |
-          echo "The uname output was ${{ steps.runcmd.outputs.uname }}"
+          cat /proc/sys/fs/binfmt_misc/qemu-aarch64
+          /usr/bin/qemu-aarch64-static --version
+
+      - name: Build SD Image
+        run: |
+          nix-build '<nixpkgs/nixos>'  \
+            -A config.system.build.sdImage \
+            -I nixos-config=./sd-image.nix \
+            --argstr system aarch64-linux \
+            --option sandbox false
+
+      - uses: actions/upload-artifact@v2
+        with:
+          name: sd-image.img
+          path: ./result/sd-image/*.img*