Index: head/sys/amd64/conf/GENERIC
===================================================================
--- head/sys/amd64/conf/GENERIC
+++ head/sys/amd64/conf/GENERIC
@@ -56,11 +56,11 @@
 options 	GEOM_LABEL		# Provides labelization
 options 	EFIRT			# EFI Runtime Services support
 options 	COMPAT_FREEBSD32	# Compatible with i386 binaries
-options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
-options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
-options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+#options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
+#options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
+#options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
+#options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+#options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
 options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
Index: head/sys/amd64/conf/MINIMAL
===================================================================
--- head/sys/amd64/conf/MINIMAL
+++ head/sys/amd64/conf/MINIMAL
@@ -53,11 +53,11 @@
 options 	QUOTA			# Enable disk quotas for UFS
 options 	MD_ROOT			# MD is a potential root device
 options 	COMPAT_FREEBSD32	# Compatible with i386 binaries
-options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
-options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
-options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+#options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
+#options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
+#options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
+#options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+#options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
 options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
Index: head/sys/i386/conf/GENERIC
===================================================================
--- head/sys/i386/conf/GENERIC
+++ head/sys/i386/conf/GENERIC
@@ -53,11 +53,11 @@
 options 	PSEUDOFS		# Pseudo-filesystem framework
 options 	GEOM_RAID		# Soft RAID functionality.
 options 	GEOM_LABEL		# Provides labelization
-options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
-options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
-options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+#options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
+#options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
+#options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
+#options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+#options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
 options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
Index: head/sys/i386/conf/MINIMAL
===================================================================
--- head/sys/i386/conf/MINIMAL
+++ head/sys/i386/conf/MINIMAL
@@ -53,11 +53,11 @@
 options 	UFS_GJOURNAL		# Enable gjournal-based UFS journaling
 options 	QUOTA			# Enable disk quotas for UFS
 options 	MD_ROOT			# MD is a potential root device
-options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
-options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
-options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+#options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
+#options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
+#options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
+#options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+#options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
 options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI
Index: head/sys/powerpc/conf/GENERIC
===================================================================
--- head/sys/powerpc/conf/GENERIC
+++ head/sys/powerpc/conf/GENERIC
@@ -61,11 +61,11 @@
 options 	GEOM_PART_APM		#Apple Partition Maps.
 options 	GEOM_PART_GPT		#GUID Partition Tables.
 options 	GEOM_LABEL		#Provides labelization
-options 	COMPAT_FREEBSD4		#Keep this for a while
-options 	COMPAT_FREEBSD5		#Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		#Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		#Compatible with FreeBSD7
-options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+#options 	COMPAT_FREEBSD4		#Keep this for a while
+#options 	COMPAT_FREEBSD5		#Compatible with FreeBSD5
+#options 	COMPAT_FREEBSD6		#Compatible with FreeBSD6
+#options 	COMPAT_FREEBSD7		#Compatible with FreeBSD7
+#options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
 options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
 options 	SCSI_DELAY=5000		#Delay (in ms) before probing SCSI 
Index: head/sys/powerpc/conf/GENERIC64
===================================================================
--- head/sys/powerpc/conf/GENERIC64
+++ head/sys/powerpc/conf/GENERIC64
@@ -65,10 +65,10 @@
 options 	GEOM_PART_GPT		#GUID Partition Tables.
 options 	GEOM_LABEL		#Provides labelization
 options 	COMPAT_FREEBSD32	#Compatible with FreeBSD/powerpc binaries
-options 	COMPAT_FREEBSD5		#Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		#Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		#Compatible with FreeBSD7
-options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+#options 	COMPAT_FREEBSD5		#Compatible with FreeBSD5
+#options 	COMPAT_FREEBSD6		#Compatible with FreeBSD6
+#options 	COMPAT_FREEBSD7		#Compatible with FreeBSD7
+#options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
 options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
 options 	SCSI_DELAY=5000		#Delay (in ms) before probing SCSI 
Index: head/sys/sparc64/conf/GENERIC
===================================================================
--- head/sys/sparc64/conf/GENERIC
+++ head/sys/sparc64/conf/GENERIC
@@ -52,10 +52,10 @@
 options 	PSEUDOFS		# Pseudo-filesystem framework
 options 	GEOM_PART_GPT		# GUID Partition Tables.
 options 	GEOM_LABEL		# Provides labelization
-options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
-options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
-options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
-options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
+#options 	COMPAT_FREEBSD5		# Compatible with FreeBSD5
+#options 	COMPAT_FREEBSD6		# Compatible with FreeBSD6
+#options 	COMPAT_FREEBSD7		# Compatible with FreeBSD7
+#options 	COMPAT_FREEBSD9		# Compatible with FreeBSD9
 options 	COMPAT_FREEBSD10	# Compatible with FreeBSD10
 options 	COMPAT_FREEBSD11	# Compatible with FreeBSD11
 options 	SCSI_DELAY=5000		# Delay (in ms) before probing SCSI