From 27d4e2b83f9955b4cc6e941f589bd4a6db99bcc1 Mon Sep 17 00:00:00 2001
From: Davin McCall <davmac@davmac.org>
Date: Wed, 21 Sep 2016 08:23:30 +0100
Subject: [PATCH] rootfscheck service: use the passed-from-parent control
 socket file descriptor to issue reboot commands (--use-passed-cfd option to
 reboot).

This may be necessary since the control socket may not have been created yet, due
to the root filesystem being read-only at this point.
---
 doc/linux/services/rootfscheck    |  2 +-
 doc/linux/services/rootfscheck.sh | 20 +++++++++++++++-----
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/doc/linux/services/rootfscheck b/doc/linux/services/rootfscheck
index 83d0bca..236cc1f 100644
--- a/doc/linux/services/rootfscheck
+++ b/doc/linux/services/rootfscheck
@@ -3,7 +3,7 @@
 type = scripted
 command = /etc/dinit.d/rootfscheck.sh start
 restart = false
-options = runs-on-console
+options = runs-on-console pass-cs-fd
 
 depends-on = early-filesystems
 depends-on = udevd
diff --git a/doc/linux/services/rootfscheck.sh b/doc/linux/services/rootfscheck.sh
index f67db80..8a19384 100755
--- a/doc/linux/services/rootfscheck.sh
+++ b/doc/linux/services/rootfscheck.sh
@@ -2,21 +2,31 @@
 export PATH=/usr/bin:/usr/sbin:/bin:/sbin
 
 if [ "$1" != "stop" ]; then
-
+  
+  ROOTDEV=`findmnt -o SOURCE -n -M /`
+  
   echo "Checking root file system..."
   if [ -x /sbin/fsck ]; then
-    /sbin/fsck -C -a /
+    /sbin/fsck -C -a "$ROOTDEV"
     fsckresult=$?
-    if [ $(($fsckresult & 2)) -eq 2 ]; then
+    if [ $((fsckresult & 4)) -eq 4 ]; then
       echo "***********************"
       echo "WARNING WARNING WARNING"
       echo "***********************"
-      echo "root file system has problems: rebooting..."
+      echo "The root file system has problems which require user attention."
+      echo "A maintennance shell will now be started; system will then be rebooted."
+      /sbin/sulogin
+      /sbin/reboot --system -r      
+    elif [ $(($fsckresult & 2)) -eq 2 ]; then
+      echo "***********************"
+      echo "WARNING WARNING WARNING"
+      echo "***********************"
+      echo "The root file system had problems (now repaired): rebooting..."
       sleep 10
       /sbin/reboot --system -r
     fi
   else
     echo "WARNING - Could not find /sbin/fsck"
   fi
-
+  
 fi;
-- 
2.25.1