appliance: Remove cruft and run udevd directly.

This commit removes a lot of cruft from old RHEL which was required to
start udev.  Instead we run the daemon directly.

Also it removes the fallback path which created some device nodes in
/dev by hand.  This likely did not work.  This also removes the
dependency on MAKEDEV which is long gone from most distros.

This is required for Ubuntu, since the /etc/init.d/udev script didn't
actually work.  The most common symptom was that /dev/virtio-ports/*
was not created because udev didn't process the cold start events.

appliance/init

@@ -36,49 +36,21 @@ mkdir -p /run/lock
 # devtmpfs is required since udev 176
 mount -t devtmpfs /dev /dev
 
-if [ ! -L /etc/init.d/udev -a -x /etc/init.d/udev ]; then
-  if type service >/dev/null 2>&1; then
-     service udev start
-  else
-     /etc/init.d/udev start
-  fi
-elif [ -x /sbin/start_udev ] && /sbin/start_udev; then
-  :
-else
-  # Find udevd and run it directly.
-  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"; fi
-  done
-  if [ -n "$UDEVD" ]; then
-    echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
-    $UDEVD --daemon
-    udevadm trigger
-    udevadm settle --timeout=600
-  else
-    echo No udevd, creating /dev manually.
-    mount -t tmpfs none /dev
-    mkdir /dev/pts /dev/shm /dev/mapper
-    mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts
-    # Must do each MAKEDEV individually, because if one device fails,
-    # MAKEDEV will quit without creating the rest (RHBZ#507374).
-    for dev in mem null port zero core full ram tty console fd \
-      hda hdb hdc hdd sda sdb sdc sdd loop sd; do
-      MAKEDEV $dev ||:
-    done
-    mknod /dev/ptmx c 5 2;    chmod 0666 /dev/ptmx
-    mknod /dev/random c 1 8;  chmod 0666 /dev/random
-    mknod /dev/urandom c 1 9; chmod 0444 /dev/urandom
-    ln -sf /proc/self/fd/0 /dev/stdin
-    ln -sf /proc/self/fd/1 /dev/stdout
-    ln -sf /proc/self/fd/2 /dev/stderr
-
-    modprobe virtio_pci
-    modprobe virtio_net
-  fi
+# Find udevd and run it directly.
+for f in /sbin/udevd /lib/udev/udevd \
+    /lib/systemd/systemd-udevd /usr/lib/systemd/systemd-udevd \
+    /usr/lib/udev/udevd; do
+  if [ -x "$f" ]; then UDEVD="$f"; fi
+done
+if [ -z "$UDEVD" ]; then
+  echo "udev not found!  Things will probably not work ..."
 fi
 
+echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
+$UDEVD --daemon
+udevadm trigger
+udevadm settle --timeout=600
+
 if grep -sq selinux=1 /proc/cmdline; then
   mount -t selinuxfs none /sys/fs/selinux
 fi

appliance/packagelist.in

@@ -41,7 +41,6 @@
   kernel
   libcap
   libldm /* only Fedora has this for now, but we should add it to others later*/
-  MAKEDEV
   nilfs-utils
   ntfsprogs
   ntfs-3g