@@ -117,6 +117,11 @@ target="/tmp/docker-rootfs-debootstrap-$suite-$$-$RANDOM"

 cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"

 returnTo="$(pwd -P)"

+if [ "$suite" = 'lucid' ]; then

+	# lucid fails and doesn't include gpgv in minbase; "apt-get update" fails

+	include+=',gpgv'

+fi

+

 set -x

 # bootstrap

@@ -138,18 +143,26 @@ if [ -z "$strictDebootstrap" ]; then

 	# shrink the image, since apt makes us fat (wheezy: ~157.5MB vs ~120MB)

 	sudo chroot . apt-get clean

-	# while we're at it, apt is unnecessarily slow inside containers

-	#  this forces dpkg not to call sync() after package extraction and speeds up install

-	#    the benefit is huge on spinning disks, and the penalty is nonexistent on SSD or decent server virtualization

-	echo 'force-unsafe-io' | sudo tee etc/dpkg/dpkg.cfg.d/02apt-speedup > /dev/null

-	#  we want to effectively run "apt-get clean" after every install to keep images small (see output of "apt-get clean -s" for context)

+	if strings usr/bin/dpkg | grep -q unsafe-io; then

+		# while we're at it, apt is unnecessarily slow inside containers

+		#  this forces dpkg not to call sync() after package extraction and speeds up install

+		#    the benefit is huge on spinning disks, and the penalty is nonexistent on SSD or decent server virtualization

+		echo 'force-unsafe-io' | sudo tee etc/dpkg/dpkg.cfg.d/02apt-speedup > /dev/null

+		# we have this wrapped up in an "if" because the "force-unsafe-io"

+		# option was added in dpkg 1.15.8.6

+		# (see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584254#82),

+		# and ubuntu lucid/10.04 only has 1.15.5.6

+	fi

+	

+	# we want to effectively run "apt-get clean" after every install to keep images small (see output of "apt-get clean -s" for context)

 	{

 		aptGetClean='"rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true";'

 		echo "DPkg::Post-Invoke { ${aptGetClean} };"

 		echo "APT::Update::Post-Invoke { ${aptGetClean} };"

 		echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";'

 	} | sudo tee etc/apt/apt.conf.d/no-cache > /dev/null

-	#  and remove the translations, too

+	

+	# and remove the translations, too

 	echo 'Acquire::Languages "none";' | sudo tee etc/apt/apt.conf.d/no-languages > /dev/null

 	# helpful undo lines for each the above tweaks (for lack of a better home to keep track of them):

@@ -190,6 +203,9 @@ if [ -z "$strictDebootstrap" ]; then

 				;;

 		esac

 	fi

+	

+	# make sure our packages lists are as up to date as we can get them

+	sudo chroot . apt-get update

 fi

 if [ "$justTar" ]; then