diff --git a/sources-final/sources-media b/sources-final/sources-media
new file mode 100755
index 00000000..644715b6
--- /dev/null
+++ b/sources-final/sources-media
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+CHROOT=$(mount | grep proc | grep calamares | awk '{print $3}' | sed -e "s#/proc##g")
+MEDIUM_PATH="/run/live/medium"
+RELEASE="jammy"
+
+if [ "$1" = "-u" ]; then
+    umount $CHROOT/$MEDIUM_PATH
+    rm $CHROOT/etc/apt/sources.list.d/debian-live-media.list
+    chroot $CHROOT apt-get update
+    exit 0
+fi
+
+# Remove the base sources, we will configure sources in a later phase
+rm -f $CHROOT/etc/apt/sources.list.d/base.list
+
+mkdir -p $CHROOT/$MEDIUM_PATH
+mount --bind $MEDIUM_PATH $CHROOT/$MEDIUM_PATH
+echo "deb [trusted=yes] file:$MEDIUM_PATH $RELEASE main" > $CHROOT/etc/apt/sources.list.d/debian-live-media.list
+chroot $CHROOT apt-get update
+# Attempt safest way to remove cruft
+rmdir $CHROOT/run/live/medium
+rmdir $CHROOT/run/live
+
+exit 0