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+## Build in a offline environment
+
+If you're stuck in a environment without internet, but you've managed to find a build machine with internet access and you want to quickly create a offline mirror. Here's how.
+
+### Prepping [archiso](#) for offline stuff.
+
+Make the following change to `build.sh` (from releng):
+
+    for arch in x86_64; do
+        run_once make_basefs
+        ./make_offline ${work_dir} ${arch} <AUR-valid packages>
+        run_once make_packages
+    done
+
+And now copy (this repository's) [make_offline](https://github.com/Torxed/archinstall/blob/master/make_offline) script and place it in your [archiso](#)'s build folder right next to `build.sh` *(if you're using releng)*.<br>
+
+That's all you need for now.<br>
+
+### Bring your build machines pacman-mirrorlist *(optional)*
+
+If you've made changes to your `/etc/pacman.d/mirrorlist` or `/etc/pacman.conf`,<br>
+Comment out these two lines in `build.sh`:
+
+    curl -o ${work_dir}/
+    lynx -dump -nolist
+
+And in their place, add these two:
+
+    cp /etc/pacman.d/mirrorlist ${work_dir}/${arch}/airootfs/etc/pacman.d/mirrorlist
+    cp /etc/pacman.conf ${work_dir}/${arch}/airootfs/etc/pacman.conf
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