From cd27dff29ae658b4f92bfd9476fc8bfb6d86749e Mon Sep 17 00:00:00 2001
From: Lucas Alvares Gomes <lucasagomes@gmail.com>
Date: Tue, 28 May 2013 15:43:46 +0100
Subject: [PATCH] Add fedora support for ramdisk-image-create.

This patch allows the creation of ramdisks from a fedora system.

Change-Id: Ic3b393af45ae1b85d015d2ceb5601ea723457da6
---
 elements/deploy/root.d/50-redhat-prepare-fs | 15 +++++
 lib/common-functions                        |  2 +-
 lib/ramdisk-functions                       | 30 +++++++++-
 scripts/init                                | 62 +++++++++++++--------
 4 files changed, 82 insertions(+), 27 deletions(-)
 create mode 100755 elements/deploy/root.d/50-redhat-prepare-fs

diff --git a/elements/deploy/root.d/50-redhat-prepare-fs b/elements/deploy/root.d/50-redhat-prepare-fs
new file mode 100755
index 00000000..317d4fe4
--- /dev/null
+++ b/elements/deploy/root.d/50-redhat-prepare-fs
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -e
+
+[ -n "$TARGET_ROOT" ]
+
+DISTRO=`lsb_release -si` || true
+
+if [[ "Fedora RedHatEnterpriseServer" =~ "$DISTRO" ]]; then
+  mkdir -p "$TARGET_ROOT/usr"
+  ln -s ../lib "$TARGET_ROOT/usr/lib"
+  if [ "`uname -m`" = "x86_64" ]; then
+      ln -s lib "$TARGET_ROOT/lib64"
+  fi
+fi
diff --git a/lib/common-functions b/lib/common-functions
index 7cf6df02..31234892 100644
--- a/lib/common-functions
+++ b/lib/common-functions
@@ -52,7 +52,7 @@ function save_image () {
 
 function generate_hooks () {
   mkdir -p $TMP_HOOKS_PATH
-  for _ELEMENT in $IMAGE_ELEMENT ; do
+  for _ELEMENT in $IMAGE_ELEMENT $RAMDISK_ELEMENT ; do
     for dir in $(echo $ELEMENTS_PATH | tr ":" " ") ; do
        [ -d $dir/$_ELEMENT ] || continue
       cp -t $TMP_HOOKS_PATH -a $dir/$_ELEMENT/* ;
diff --git a/lib/ramdisk-functions b/lib/ramdisk-functions
index 7010c65b..67225cb1 100644
--- a/lib/ramdisk-functions
+++ b/lib/ramdisk-functions
@@ -68,11 +68,14 @@ function create_base () {
   # cjk adding for discovery support
   mkdir -p "$TMP_MOUNT_PATH/var/lib/dhcp"
   mkdir -p "$TMP_MOUNT_PATH/var/run"
-
   mkdir -p "$TMP_MOUNT_PATH/lib/udev/rules.d"
   cp -a "$LIB_UDEV/rules.d/50-firmware.rules" "$TMP_MOUNT_PATH/lib/udev/rules.d"
   cp -a "$LIB_UDEV/rules.d/80-drivers.rules" "$TMP_MOUNT_PATH/lib/udev/rules.d"
-  cp -a "$LIB_UDEV/firmware" "$TMP_MOUNT_PATH/lib/udev"
+
+  if [ -a $LIB_UDEV/firmware ]; then
+    cp -a "$LIB_UDEV/firmware" "$TMP_MOUNT_PATH/lib/udev"
+  fi
+
   # cjk adding for hwdiscovery support
   cp "/sbin/dhclient-script" "$TMP_MOUNT_PATH/sbin"
 
@@ -89,6 +92,9 @@ udev_root="/dev"
 udev_rules="/lib/udev/rules.d"
 udev_log="no"
 EOF
+
+  generate_hooks
+  TARGET_ROOT=$TMP_MOUNT_PATH run_d root
 }
 
 function copy_required_libs() {
@@ -140,7 +146,25 @@ function copy_required_libs() {
 function populate_lib () {
   echo "Populating /lib"
 
-  for i in "$BUSYBOX" "$LIB_UDEV/firmware" bash lsmod modprobe udevd udevadm wget reboot shutdown $BINARY_DEPS ; do
+  # find udevd
+  UDEVD=
+  for f in /sbin/udevd /lib/udev/udevd /lib/systemd/systemd-udevd \
+          /usr/lib/systemd/systemd-udevd \
+          /usr/lib/udev/udevd; do
+      if [ -x "$f" ]; then
+          UDEVD="$f"
+          break
+      fi
+  done
+
+  UDEV_FIRMWARE=
+  if [ -a $LIB_UDEV/firmware ]; then
+     UDEV_FIRMWARE="$LIB_UDEV/firmware"
+  fi
+
+  for i in "$BUSYBOX" bash lsmod modprobe udevadm \
+           wget reboot shutdown $UDEVD $UDEV_FIRMWARE \
+           $BINARY_DEPS ; do
     if "$BUSYBOX" --list | grep "^$i\$" >/dev/null; then
       continue
     fi
diff --git a/scripts/init b/scripts/init
index fb6c2da2..f383c110 100644
--- a/scripts/init
+++ b/scripts/init
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# Copyright (c) 2012 NTT DOCOMO, INC. 
+# Copyright (c) 2012 NTT DOCOMO, INC.
 # Copyright 2012 Hewlett-Packard Development Company, L.P.
 #
 # All Rights Reserved.
@@ -49,27 +49,43 @@ readonly DEPLOYMENT_KEY=$(get_kernel_parameter deployment_key)
 readonly ISCSI_TARGET_IQN=$(get_kernel_parameter iscsi_target_iqn)
 
 mount -t sysfs none /sys
-mount -t tmpfs none /dev
-ln -sf /proc/self/fd /dev/fd
-mknod /dev/null c 1 3
-mknod /dev/zero c 1 5
-mknod /dev/random c 1 8
-mknod /dev/urandom c 1 9
-mknod /dev/tty0 c 4 0
-mknod /dev/tty1 c 4 1
-mknod /dev/tty2 c 4 2
-mknod /dev/tty3 c 4 3
-mknod /dev/tty4 c 4 4
-mknod /dev/tty5 c 4 5
-mknod /dev/tty6 c 4 6
-mknod /dev/tty7 c 4 7
-mknod /dev/tty8 c 4 8
-mknod /dev/tty9 c 4 9
-mknod /dev/tty c 5 0
-mknod -m 0600 /dev/console c 5 1
-mknod -m 0666 /dev/ptmx c 5 2
-mkdir -p /dev/.udev
-mkdir -p /dev/.udev/data
+
+UDEVD=
+if [ -x "/bin/systemd-udevd" ]; then
+    UDEVD="systemd-udevd"
+else
+    UDEVD="udevd"
+fi
+
+if [ "$UDEVD" = "systemd-udevd" ]; then
+    # devtmpfs is required since udev 176
+    mount -t devtmpfs none /dev
+    mkdir -p /run
+    mount -t tmpfs -o "nosuid,size=20%,mode=0755" tmpfs /run
+    mkdir -p /run/lock
+else
+    mount -t tmpfs none /dev
+    ln -sf /proc/self/fd /dev/fd
+    mknod /dev/null c 1 3
+    mknod /dev/zero c 1 5
+    mknod /dev/random c 1 8
+    mknod /dev/urandom c 1 9
+    mknod /dev/tty0 c 4 0
+    mknod /dev/tty1 c 4 1
+    mknod /dev/tty2 c 4 2
+    mknod /dev/tty3 c 4 3
+    mknod /dev/tty4 c 4 4
+    mknod /dev/tty5 c 4 5
+    mknod /dev/tty6 c 4 6
+    mknod /dev/tty7 c 4 7
+    mknod /dev/tty8 c 4 8
+    mknod /dev/tty9 c 4 9
+    mknod /dev/tty c 5 0
+    mknod -m 0600 /dev/console c 5 1
+    mknod -m 0666 /dev/ptmx c 5 2
+    mkdir -p /dev/.udev
+    mkdir -p /dev/.udev/data
+fi
 
 echo "starting syslogd"
 
@@ -78,7 +94,7 @@ syslogd
 klogd
 
 echo "starting udevd"
-udevd --daemon --resolve-names=never
+$UDEVD --daemon --resolve-names=never
 
 echo "load modules"
 load_modules_by_udev