add empty "extrausers" equivalents for subuid and subgid files, else adduser falls over in interactive mode when trying to write to them

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.343) UNRELEASED; urgency=medium
+
+  * add empty "extrausers" equivalents for subuid and subgid files, else
+    adduser falls over in interactive mode when trying to write to them.
+
+ -- Oliver Grawert <ogra@ubuntu.com>  Wed, 09 Sep 2015 13:28:10 +0200
+
 livecd-rootfs (2.342) wily; urgency=medium
 
   * ubuntu-touch, ubuntu-desktop-next: drop systemd-journal-remote from group

live-build/ubuntu-core/hooks/01-setup_user.chroot

@@ -30,6 +30,8 @@ sed -i "/^$USER/d" /etc/group
 sed -i "/^$USER/d" /etc/passwd
 sed -i "/^$USER/d" /etc/shadow
 sed -i "/^$USER/d" /etc/gshadow
+touch /var/lib/extrausers/subuid
+touch /var/lib/extrausers/subgid
 
 # needs to run *after* the user was moved out to /var/lib/extrausers
 echo "I: set user $USER password to $USER"

live-build/ubuntu-desktop-next/hooks/01-setup_user.chroot

@@ -35,6 +35,8 @@ sed -i "/^$USER/d" /etc/group
 sed -i "/^$USER/d" /etc/passwd
 sed -i "/^$USER/d" /etc/shadow
 sed -i "/^$USER/d" /etc/gshadow
+touch /var/lib/extrausers/subuid
+touch /var/lib/extrausers/subgid
 
 # needs to run *after* the user was moved out to /var/lib/extrausers
 echo "I: set user $USER password to $USER"

live-build/ubuntu-touch/hooks/01-setup_user.chroot

@@ -32,6 +32,8 @@ sed -i "/^$USER/d" /etc/group
 sed -i "/^$USER/d" /etc/passwd
 sed -i "/^$USER/d" /etc/shadow
 sed -i "/^$USER/d" /etc/gshadow
+touch /var/lib/extrausers/subuid
+touch /var/lib/extrausers/subgid
 
 # Prevent the system user from being presented in the greeter by bumping MIN_UID
 sed -i 's/^\(UID_MIN\s\+\).*/\11002/g' /etc/login.defs