Import patches-unapplied version 2.275+ppa2 to ubuntu/vivid-proposed

Imported using git-ubuntu import.

Changelog parent: e9c37a48e9398794be88d0f437b5f0b287e29180

New changelog entries:
  * live-build/ubuntu-core/hooks/04-configure_network.chroot: use
    'allow-hotplug' for the network config, not 'auto', to work around
    systemd behavior that causes 'auto' to delay the rest of the boot when
    DHCP is not available on the network.
  * live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early:
    - port static uid/gid setup from ubuntu-touch
  * live-build/ubuntu-core/hooks/15-pycompile-snappy.chroot:
    - byte compile .pyc files for snappy

debian/changelog

@@ -1,3 +1,21 @@
+livecd-rootfs (2.275+ppa2) vivid; urgency=medium
+
+  * live-build/ubuntu-core/hooks/04-configure_network.chroot: use
+    'allow-hotplug' for the network config, not 'auto', to work around
+    systemd behavior that causes 'auto' to delay the rest of the boot when
+    DHCP is not available on the network.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Wed, 14 Jan 2015 22:49:43 -0800
+
+livecd-rootfs (2.275+ppa1) vivid; urgency=low
+
+  * live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early:
+    - port static uid/gid setup from ubuntu-touch
+  * live-build/ubuntu-core/hooks/15-pycompile-snappy.chroot:
+    - byte compile .pyc files for snappy
+
+ -- Michael Vogt <michael.vogt@ubuntu.com>  Wed, 07 Jan 2015 09:36:11 +0100
+
 livecd-rootfs (2.275) vivid; urgency=low
 
   [ Michael Vogt ]

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

@@ -10,3 +10,24 @@ echo "I: set user $USER password to $USER"
 echo "$USER:$USER" | chpasswd
 
 chown -R $UGID:$UGID /home/$USER
+
+# Enable libnss-extrusers
+sed -i 's/^group:.*compat/\0 extrausers/' /etc/nsswitch.conf
+sed -i 's/^passwd:.*compat/\0 extrausers/' /etc/nsswitch.conf
+sed -i 's/^shadow:.*compat/\0 extrausers/' /etc/nsswitch.conf
+
+# Move user from /etc to extrausers location
+grep "^$USER" /etc/group >> /var/lib/extrausers/group
+grep "^$USER" /etc/passwd >> /var/lib/extrausers/passwd
+grep "^$USER" /etc/shadow >> /var/lib/extrausers/shadow
+grep "^$USER" /etc/gshadow >> /var/lib/extrausers/gshadow
+chmod 0644 /var/lib/extrausers/group
+chmod 0644 /var/lib/extrausers/passwd
+chmod 0640 /var/lib/extrausers/shadow
+chmod 0640 /var/lib/extrausers/gshadow
+chown root:shadow /var/lib/extrausers/shadow
+chown root:shadow /var/lib/extrausers/gshadow
+sed -i "/^$USER/d" /etc/group
+sed -i "/^$USER/d" /etc/passwd
+sed -i "/^$USER/d" /etc/shadow
+sed -i "/^$USER/d" /etc/gshadow

live-build/ubuntu-core/hooks/04-configure_network.chroot

@@ -4,6 +4,6 @@ if=eth0
 
 # Manually configure the first ethernet device
 cat >/etc/network/interfaces.d/"$if"<<EOT
-auto $if
+allow-hotplug $if
 iface $if inet dhcp
 EOT

live-build/ubuntu-core/hooks/15-pycompile-snappy.chroot

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+set -e
+
+# ensure python create the byte .pyc files for snappy
+snappy -v