Merge lp:~mwhudson/livecd-rootfs/default-LANG-C.UTF-8 into lp:livecd-rootfs

[Michael Hudson-Doyle]

This needs careful testing. I can test the ubuntu server (subiquity and d-i) bits, not completely sure what is required to test the cpc bits though.

[Steve Langasek (vorlon)]

+1.

Testing the cpc bits should be a matter of ensuring that a cloud image boots by default with no noise about locale-gen in the cloud-init logs and still ends up with /etc/default/locale set to C.UTF-8 after boot; and also to test in at least one cloud with cloud data overrides to set the locale to something else. (And anyway, if either of these tests fails, it needs fixing in cloud-init at that point.)

review: Approve

=== modified file 'debian/changelog'
--- debian/changelog	2018-03-21 11:05:46 +0000
+++ debian/changelog	2018-03-26 20:51:08 +0000
@@ -1,3 +1,10 @@
+livecd-rootfs (2.515) UNRELEASED; urgency=medium
+
+  * Set the default locale to C.UTF-8 in all server and cloud images.
+   (LP: #1751051, #1759003)
+
+ -- Michael Hudson-Doyle <[e-mail]>  Tue, 27 Mar 2018 09:41:59 +1300
+
 livecd-rootfs (2.514) bionic; urgency=medium
 
   * On amd64, if building minimal images for bionic, xenial, or extra ppa,

=== modified file 'live-build/auto/build'
--- live-build/auto/build	2018-03-06 09:15:00 +0000
+++ live-build/auto/build	2018-03-26 20:51:08 +0000
@@ -94,6 +94,16 @@
 
 	lb bootstrap "$@"
 
+	case $PROJECT in
+		ubuntu-server|ubuntu-cpc)
+			# Set locale to C.UTF-8 by default. We should
+			# probably do this for all images early in the
+			# 18.10 cycle but for now just do it for
+			# server and cpc products.
+			echo "LANG=C.UTF-8" > chroot/etc/default/locale
+			;;
+	esac
+
 	if [ "${SUBPROJECT:-}" = minimized ] \
 	   && ! Chroot chroot dpkg -l tzdata 2>&1 |grep -q ^ii; then
 		# workaround for tzdata purge not removing these files