Support Ubuntu releases

[paulmenzel]

debootstrap also supports Ubuntu releases. Using --release bionic results in an error. For example, the script chroot-script adds an entry for the security package archive.

grml-debootstrap/chroot-script

Lines 113 to 127 in 59e7595

	# add security.debian.org:
	case "$RELEASE" in
	unstable|sid|lenny) ;; # no security pool available
	squeeze|wheezy|jessie|stretch|buster)
	echo "Adding security.debian.org to sources.list."
	echo "deb http://security.debian.org ${RELEASE}/updates $COMPONENTS" >> /etc/apt/sources.list
	;;
	*)
	# bullseye and newer releases use a different repository layout, see
	# https://lists.debian.org/debian-devel-announce/2019/07/msg00004.html
	echo "Adding security.debian.org/debian-security to sources.list."
	echo "deb http://security.debian.org/debian-security ${RELEASE}-security $COMPONENTS" >> /etc/apt/sources.list
	;;
	esac
	}

[mika]

Yeah, but grml-debootstrap is only about Debian so far, as the package description (ease installation of a pure Debian system) says, as well as the manual page at the SUPPORTED RELEASES section. :)

Furthermore quoting from TODO:

• test support for Ubuntu as debootstrap >=1.0.0 provides support for it

I'm not objecting to also support Ubuntu (and therefore adjusted the title of this issue), but I don't have a use case on my own, so patches welcome. :)