Mkisofs.

.github/workflows/test.yml

@@ -25,11 +25,15 @@ jobs:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v2
 
-      - name: Downloading the latest Arch Linux ISO
+      - name: Downloading the latest Arch Linux ISO.
         run: wget http://mirrors.mit.edu/archlinux/iso/latest/archlinux-2021.02.01-x86_64.iso
-      - name: Creating the ISO mountpoint
+      - name: Installing mkisofs.
+        run: sudo apt-get install mkisofs -y
+      - name: Creating the ISO mountpoint.
         run: mkdir ~/archiso
-      - name: Mounting the ISO
+      - name: Mounting the ISO.
         run: sudo mount archlinux-* ~/archiso
-      - name: Listing files
-        run: ls ~/archiso
+      - name: Extracting squashfs.
+        run: sudo unsquashfs archiso/arch/x86_64/airootfs.sfs
+      - name: Listing squashfs content
+        run: ls ~/squashfs-root