Imported 2.540

No reason for CPC update specified.

debian/changelog

@@ -1,3 +1,16 @@
+livecd-rootfs (2.540) cosmic; urgency=medium
+
+  * Ensure /lib/modules exists in root tarballs and sqashfs.
+    (LP: #1792905)
+
+ -- Tobias Koch <tobias.koch@canonical.com>  Thu, 20 Sep 2018 09:38:34 +0200
+
+livecd-rootfs (2.539) cosmic; urgency=medium
+
+  * Stop building buildd chroots with --xattrs until we move to python3.
+
+ -- Adam Conrad <adconrad@ubuntu.com>  Thu, 20 Sep 2018 02:52:10 -0600
+
 livecd-rootfs (2.538) cosmic; urgency=medium
 
   * Add a buildd subproject.

live-build/auto/build

@@ -505,7 +505,7 @@ elif [ "$SUBPROJECT" = buildd ]; then
 	# buildd chroots about twice as fast as xz and about five times as
 	# fast as bzip2.
 	tar --transform='s,^binary,chroot-autobuild,' \
-		--sort=name --numeric-owner --xattrs \
+		--sort=name --numeric-owner \
 		-czf "$PREFIX.rootfs.tar.gz" binary
 fi
 

live-build/ubuntu-cpc/hooks/031-0-create-root-dir.binary

@@ -21,6 +21,9 @@ env DEBIAN_FRONTEND=noninteractive chroot $rootfs_dir apt-get --purge remove --a
 env DEBIAN_FRONTEND=noninteractive chroot $rootfs_dir apt-get autoremove --purge --assume-yes
 rm -rf $rootfs_dir/boot/grub
 
+# Keep this as some derivatives mount a tempfs here
+mkdir -p $rootfs_dir/lib/modules
+
 teardown_mountpoint $rootfs_dir
 
 dpkg-query --admindir=$rootfs_dir/var/lib/dpkg -W > $rootfs_dir.manifest