-[1] Please notice that lenny is an unsupported release within Debian nowadays.
-grml-debootstrap can handle the release but you really should not use lenny
-anymore unless you really know what you are doing. Choose Debian 8.0 (jessie) or
-something newer instead.
-
-Notice that you need to specify a mirror providing the lenny release, the
-default (http://httpredir.debian.org/debian) doesn't provide it any longer nowadays.
+[1] Please notice that releases like lenny, squeeze and wheezy are unsupported releases within Debian nowadays.
+grml-debootstrap can handle the releases but you really should not use them
+anymore unless you really know what you are doing.
+Choose the current Debian stable version instead.
+See https://wiki.debian.org/DebianReleases for the list of supported releases.
+
+Notice that you need to specify a mirror providing the lenny and squeeze releases, the
+default (http://deb.debian.org/debian) doesn't provide it any longer nowadays.