Support fsck.mode= and fsck.repair= parameters as known by systemd-fsck

This is also fixing the fact that fsckfix parameter was not honored

Note that -n is apparently not supported by fsck.minix

Closes: #783410, #792557
Signed-off-by: Laurent Bigonville <bigon@bigon.be>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

init

@@ -61,7 +61,7 @@ export resume_offset=
 export drop_caps=
 export fastboot=n
 export forcefsck=n
-export fsckfix=n
+export fsckfix=
 
 
 # Bring in the main config
@@ -169,15 +169,18 @@ for x in $(cat /proc/cmdline); do
 	BOOTIF=*)
 		BOOTIF=${x#BOOTIF=}
 		;;
-	fastboot)
+	fastboot|fsck.mode=skip)
 		fastboot=y
 		;;
-	forcefsck)
+	forcefsck|fsck.mode=force)
 		forcefsck=y
 		;;
-	fsckfix)
+	fsckfix|fsck.repair=yes)
 		fsckfix=y
 		;;
+	fsck.repair=no)
+		fsckfix=n
+		;;
 	esac
 done
 

scripts/functions

@@ -358,9 +358,12 @@ _checkfs_once()
 		force=""
 	fi
 
-	if [ "$fsckfix" = yes ]
+	if [ "$fsckfix" = "y" ]
 	then
 		fix="-y"
+	elif [ "$fsckfix" = "n" ]
+	then
+		fix="-n"
 	else
 		fix="-a"
 	fi