From 155accb59941af9ced6fb8ba730dbe839857ff70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gon=C3=A9ri=20Le=20Bouder?= <goneri.lebouder@enovance.com>
Date: Fri, 11 Apr 2014 10:42:37 +0200
Subject: [PATCH] debian: support upstart on Wheezy
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Upstart cannot be installed by debootstrap on Wheezy because of a
conflict with sysvinit. sysvinit is flagged a being “essential” and
apt-get will refuse to remove it.
See: https://bugs.debian.org/668001

This patch uses another strategy. We install a standard sysvinit
Debian chroot with debootstrap and during a second step, we
replace sysvinit with the wanted init system.

Change-Id: I081c81b2c32874fccf940c97b79054923c25b8c2
---
 .../root.d/99-cleanup-debian-upstart          |  3 ---
 elements/debian/root.d/08-debootstrap         | 20 +++++++++++++------
 2 files changed, 14 insertions(+), 9 deletions(-)
 delete mode 100755 elements/debian-upstart/root.d/99-cleanup-debian-upstart

diff --git a/elements/debian-upstart/root.d/99-cleanup-debian-upstart b/elements/debian-upstart/root.d/99-cleanup-debian-upstart
deleted file mode 100755
index cd029626f..000000000
--- a/elements/debian-upstart/root.d/99-cleanup-debian-upstart
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-set -eux
-sudo rm -f ${TARGET_ROOT}/.distro-name ${TARGET_ROOT}/.extra-packages
diff --git a/elements/debian/root.d/08-debootstrap b/elements/debian/root.d/08-debootstrap
index 7dbd30680..8c952ef8a 100755
--- a/elements/debian/root.d/08-debootstrap
+++ b/elements/debian/root.d/08-debootstrap
@@ -37,10 +37,6 @@ if [ -n "$DIB_OFFLINE" ] && [ -f $DEBOOTSTRAP_TARBALL ] ; then
 else
     echo Building new tarball for Debian $DIB_RELEASE ARCH=$ARCH
     ADD_PACKAGES=sudo,adduser,locales,openssh-server,file,less,kbd,curl,rsync,bash-completion,linux-image-amd64
-    if [ "$DIB_DEBIAN_ALT_INIT_PACKAGE" != "sysvinit" ]; then
-        ADD_PACKAGES=${ADD_PACKAGES},${DIB_DEBIAN_ALT_INIT_PACKAGE}
-    fi
-
     sudo sh -c "http_proxy=$http_proxy debootstrap --verbose \
         --arch=${ARCH} \
         --include=${ADD_PACKAGES} \
@@ -49,16 +45,28 @@ else
         $DIB_DISTRIBUTION_MIRROR"
     echo "Customizing result for cloud use"
 
-    CLOUD_INIT_PACKAGES="cloud-init cloud-utils cloud-initramfs-growroot"
+    apt_get_bp_extra_opts=
     if [ "$DIB_RELEASE" = "wheezy" ]; then
         sudo sh -c "echo deb $DIB_DISTRIBUTION_MIRROR wheezy-backports main >> ${TARGET_ROOT}/etc/apt/sources.list"
         sudo chroot ${TARGET_ROOT} apt-get update
-        sudo chroot ${TARGET_ROOT} apt-get install -y -t wheezy-backports $CLOUD_INIT_PACKAGES
         cat << EOF | sudo tee -a ${TARGET_ROOT}/etc/network/interfaces
 source-directory /etc/interfaces.d
 EOF
     else # unstable
         sudo chroot ${TARGET_ROOT} apt-get install -y $CLOUD_INIT_PACKAGES
+        sudo sh -c "http_proxy=$http_proxy chroot ${TARGET_ROOT} apt-get update"
+        apt_get_bp_extra_opts="-t wheezy-backports"
+    fi
+
+    CLOUD_INIT_PACKAGES="cloud-init cloud-utils cloud-initramfs-growroot"
+    sudo sh -c "http_proxy=$http_proxy chroot ${TARGET_ROOT} apt-get install -y $apt_get_bp_extra_opts $CLOUD_INIT_PACKAGES"
+
+    if [ "$DIB_DEBIAN_ALT_INIT_PACKAGE" != "sysvinit" ]; then
+        # To avoid a conflict against an essential package, we need to remove sysvinit first
+        sudo chroot ${TARGET_ROOT} dpkg --purge --force remove-essential sysvinit
+        sudo sh -c "http_proxy=$http_proxy chroot ${TARGET_ROOT}  apt-get install -y $apt_get_bp_extra_opts $DIB_DEBIAN_ALT_INIT_PACKAGE"
+        sudo sh -c "printf \"Package: sysvinit\nPin: origin ""\nPin-Priority: -1\n\" > \
+            ${TARGET_ROOT}/etc/apt/preferences.d/sysvinit > ${TARGET_ROOT}/etc/apt/preferences.d/sysvinit"
     fi
 
     sudo sed -i "s/PermitRootLogin yes/PermitRootLogin without-password/" $TARGET_ROOT/etc/ssh/sshd_config