-* enough free disk space; at least 1.5GB are required for a minimal grml-live
-run (\~850MB for the chroot [$CHROOT_OUTPUT], \~300MB for the build target
-[$BUILD_OUTPUT], \~30MB for the netboot files and \~300MB for the resulting ISO
+* enough free disk space; at least ~2GB are required for a minimal grml-live
+run (\~1GB for the chroot [$CHROOT_OUTPUT], \~400MB for the build target
+[$BUILD_OUTPUT], \~35MB for the netboot files and \~350MB for the resulting ISO