Workaround if pkgcache.bin does not exist

Author: pillarsdotnet

templates/update_had_no_effect.sh.epp

@@ -13,6 +13,7 @@ apt-config shell CUR DIR::Cache::pkgcache >"$EVAL" && . "$EVAL"
 [ "$CUR" ] || CUR=pkgcache.bin
 OLD="$(mktemp)" || OLD="/${DIR}/${CUR}.old"
 rm -f "$EVAL"
+[ -e "$CUR" ] || touch "$CUR"
 ln -f "$CUR" "$OLD"
 TRIES=<%= $tries %>
 while true; do