Rename 90-install-user-fix to 80-...

Author: foosel

README.md

@@ -11,6 +11,7 @@ A bunch of simple update scripts are run via [CustoPiZer](https://github.com/Oct
 
   * `01-update-octoprint`: Updates OctoPrint to the latest version
   * `02-update-boot`: Updates bootloader and kernel to the latest version
+  * `80-install-user-fix`: Installs a compatibility layer to support renaming the `pi` user, if needed.
   * `99-write-build`: Writes the build tag to `/etc/octopiuptodate-build`
 
 ## Can I do something like this as well?

scripts/90-install-user-fix scripts/80-install-user-fixscripts/90-install-user-fix renamed to scripts/80-install-user-fix

@@ -6,6 +6,9 @@ export LC_ALL=C
 source /common.sh
 install_cleanup_trap
 
+# if we already have the user-fix installed, we don't need to do anything
+[ -f '/root/bin/user-fix' ] && exit 0
+
 # we need to install virtualenv-tools3, so let's get pip and that
 apt install -y python3-pip
 sudo -u pi pip3 install --user virtualenv-tools3