diff --git a/distrib/emips/ramdisk/Makefile b/distrib/emips/ramdisk/Makefile
index ad9d4495546a..1c3207a80b5e 100644
--- a/distrib/emips/ramdisk/Makefile
+++ b/distrib/emips/ramdisk/Makefile
@@ -1,11 +1,11 @@
-#	$NetBSD: Makefile,v 1.4 2019/03/29 16:03:20 christos Exp $
+#	$NetBSD: Makefile,v 1.5 2019/03/31 16:09:14 christos Exp $
 
 .include <bsd.own.mk>
 .include "${NETBSDSRCDIR}/distrib/common/Makefile.distrib"
 
 IMAGE=		ramdisk.fs
 IMAGETAR=	diskimage.tgz
-IMAGESIZE=	3600k
+IMAGESIZE=	3800k
 MAKEFS_FLAGS+=	-f 15
 
 WARNS=		1
diff --git a/sys/arch/emips/conf/RAMDISK b/sys/arch/emips/conf/RAMDISK
index 6fefa5738566..8b816cc1bdd7 100644
--- a/sys/arch/emips/conf/RAMDISK
+++ b/sys/arch/emips/conf/RAMDISK
@@ -1,4 +1,4 @@
-# 	$NetBSD: RAMDISK,v 1.3 2015/08/21 01:52:07 uebayasi Exp $
+# 	$NetBSD: RAMDISK,v 1.4 2019/03/31 16:10:27 christos Exp $
 #
 # Install kernel with ramdisk added.
 # The ramdisk is be too big to netboot directly via ECOFF on some machines,
@@ -15,7 +15,7 @@ pseudo-device	ksyms
 options 	MEMORY_DISK_HOOKS
 options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
 options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
-options 	MEMORY_DISK_ROOT_SIZE=7000	# size of memory disk, in blocks (3500kB)
+options 	MEMORY_DISK_ROOT_SIZE=7600	# size of memory disk, in blocks (3800kB)
 #options 	MEMORY_DISK_ROOT_SIZE=2880	# 1.44M, same as a floppy
 
 # File systems: need MFS
diff --git a/sys/arch/pmax/conf/RAMDISK b/sys/arch/pmax/conf/RAMDISK
index a6712c5f53d2..1b532758f09d 100644
--- a/sys/arch/pmax/conf/RAMDISK
+++ b/sys/arch/pmax/conf/RAMDISK
@@ -1,4 +1,4 @@
-# 	$NetBSD: RAMDISK,v 1.15 2019/02/13 07:55:33 gson Exp $
+# 	$NetBSD: RAMDISK,v 1.16 2019/03/31 16:11:57 christos Exp $
 #
 # Install kernel with ramdisk added.
 # The ramdisk is be too big to netboot directly via ECOFF on some machines,
@@ -13,7 +13,7 @@ include	"arch/pmax/conf/INSTALL"
 options 	MEMORY_DISK_HOOKS
 options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
 options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
-options 	MEMORY_DISK_ROOT_SIZE=7200	# size of memory disk, in blocks (3500kB)
+options 	MEMORY_DISK_ROOT_SIZE=8000	# size of memory disk, in blocks (4000kB)
 #options 	MEMORY_DISK_ROOT_SIZE=2880	# 1.44M, same as a floppy
 options 	MEMORY_DISK_RBFLAGS=RB_SINGLE	# boot in single-user mode
 
diff --git a/sys/arch/pmax/conf/RAMDISK64 b/sys/arch/pmax/conf/RAMDISK64
index 97adf549b921..ce96e074e1a2 100644
--- a/sys/arch/pmax/conf/RAMDISK64
+++ b/sys/arch/pmax/conf/RAMDISK64
@@ -1,4 +1,4 @@
-# 	$NetBSD: RAMDISK64,v 1.4 2011/02/20 07:50:24 matt Exp $
+# 	$NetBSD: RAMDISK64,v 1.5 2019/03/31 16:11:57 christos Exp $
 #
 # Install kernel with ramdisk added.
 # The ramdisk is be too big to netboot directly via ECOFF on some machines,
@@ -13,7 +13,7 @@ include	"arch/pmax/conf/INSTALL64"
 options 	MEMORY_DISK_HOOKS
 options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
 options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
-options 	MEMORY_DISK_ROOT_SIZE=7168	# size of memory disk, in blocks (3500kB)
+options 	MEMORY_DISK_ROOT_SIZE=8000	# size of memory disk, in blocks (4000kB)
 
 # File systems: need MFS
 file-system 	MFS		# memory file system