From 60172a0ea8d86817ed5837fb7fa63498860f0907 Mon Sep 17 00:00:00 2001
From: Benjamin Kaduk <kaduk@mit.edu>
Date: Thu, 23 Oct 2014 16:25:30 -0400
Subject: [PATCH] Succeed when the kmod is missing

Otherwise we get an angry message from dpkg and a disabled state.
---
 debian/openafs-client-precheck | 16 +++++++++++++++-
 debian/openafs-client.service  |  2 +-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/debian/openafs-client-precheck b/debian/openafs-client-precheck
index 0dfd6486a..e2927118a 100755
--- a/debian/openafs-client-precheck
+++ b/debian/openafs-client-precheck
@@ -7,6 +7,7 @@ if [ -f /etc/openafs/afs.conf ]; then
 fi
 
 CACHEINFO=${CACHEINFO:-/etc/openafs/cacheinfo}
+MODULEROOT=${MODULEROOT:-/lib/modules/`uname -r`}
 
 # Exit if the package is not installed.
 [ -x /sbin/afsd ] || exit 1
@@ -32,7 +33,19 @@ if [ -z $(/sbin/lsmod | fgrep openafs) ]; then
 
     if [ $status -ne 0 ] ; then
 	echo "Failed to load openafs.ko.  Does it need to be built?" >&2
-        exit $status
+	# We cannot fail hard on a missing module, though, as that will
+	# cause our unit to be put in a disabled state.
+	if $(grep -q openafs "$MODULEROOT/modules.dep"); then
+	    exit $status
+	else
+	    cat > /var/cache/openafs-client/openafs-client.env <<EOF
+AFSD_ARGS=-exit
+AFS_SETCRYPT=-help
+AFS_SYSNAME=-help
+KMOD=--version
+EOF
+	    exit 0
+	fi
     fi
 fi
 
@@ -75,4 +88,5 @@ cat > /var/cache/openafs-client/openafs-client.env <<EOF
 AFSD_ARGS=${AFSD_OPTIONS}
 AFS_SETCRYPT=${AFS_SETCRYPT}
 AFS_SYSNAME=${AFS_SYSNAME}
+KMOD=openafs
 EOF
diff --git a/debian/openafs-client.service b/debian/openafs-client.service
index 41595afd3..ab65b44e9 100755
--- a/debian/openafs-client.service
+++ b/debian/openafs-client.service
@@ -13,7 +13,7 @@ ExecStartPost=/usr/bin/fs sysname $AFS_SYSNAME
 ExecStop=/bin/grep -qv ^1$ /proc/sys/kernel/modules_disabled
 ExecStop=/bin/umount -a -t afs
 ExecStop=/bin/umount -af -t afs
-ExecStopPost=/sbin/rmmod openafs
+ExecStopPost=/sbin/rmmod $KMOD
 EnvironmentFile=/var/cache/openafs-client/openafs-client.env
 KillMode=none
 
-- 
2.39.5