Have Docker start cgroups as dependency

Reverts commit 5a0a00f296.

alpine.sh

@@ -65,10 +65,9 @@ setup-disk -m sys /mnt
 # Update boot-time volume information
 BOOT_UUID=$(blkid /dev/sda1 | cut -d' ' -f2 | tr -d '"')
 cat <<EOF >/mnt/etc/fstab
-/dev/vg0/root                               /                ext4     rw,noatime,data=ordered   0   1
-${BOOT_UUID}   /boot            ext4     rw,noatime,data=ordered   0   2
-/dev/vg0/swap                               swap             swap     defaults                  0   0
-cgroup                                      /sys/fs/cgroup   cgroup   defaults                  0   0
+/dev/vg0/root                               /       ext4    rw,noatime,data=ordered   0   1
+${BOOT_UUID}   /boot   ext4    rw,noatime,data=ordered   0   2
+/dev/vg0/swap                               swap    swap    defaults                  0   0
 EOF
 echo "system /dev/sda2 none luks" >/mnt/etc/crypttab
 

basic/etc/init.d/docker

@@ -14,7 +14,7 @@ start_stop_daemon_args="--background \
 grsecdir=/proc/sys/kernel/grsecurity
 
 depend() {
-	need sysfs
+	need sysfs cgroups
 }
 
 start_pre() {