diff --git a/memtest86+-4.10.tar.bz2 b/memtest86+-4.10.tar.bz2
deleted file mode 100644
index 0735b9f..0000000
--- a/memtest86+-4.10.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:10cacb8a6228efe094d5e725ff59aa808104fc86eafa02e55c239ca097877bae
-size 188040
diff --git a/memtest86+-4.20.tar.bz2 b/memtest86+-4.20.tar.bz2
new file mode 100644
index 0000000..eb916b6
--- /dev/null
+++ b/memtest86+-4.20.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:48d963fe7d99161c16f9c237a845ea05e4858c34cdc1713a4ea459404249ffa9
+size 188711
diff --git a/memtest86+.changes b/memtest86+.changes
index 4019fd2..9fdd03b 100644
--- a/memtest86+.changes
+++ b/memtest86+.changes
@@ -1,3 +1,21 @@
+-------------------------------------------------------------------
+Wed Mar 30 11:47:34 UTC 2011 - trenn@suse.de
+
+- Do not enable serial by default, console=ttySx,... still works
+
+-------------------------------------------------------------------
+Tue Mar 29 15:23:33 CEST 2011 - trenn@suse.de
+
+- Update to version 4.20:
+       - Added failsafe mode (F1 at startup)
+       - Added support for Intel "Sandy Bridge" CPU
+       - Added support for AMD "fusion" CPU
+       - Added Coreboot "table forward" support
+       - Corrected some memory brand not detected
+       - Various bug fixes
+- Remove %ifarch x86_64 check in .spec file. The internal Makefile
+  already adds -m32 and -as32 itself.
+
 -------------------------------------------------------------------
 Mon Aug 30 09:59:35 UTC 2010 - trenn@novell.com
 
diff --git a/memtest86+.spec b/memtest86+.spec
index 90339a7..5dad1ed 100644
--- a/memtest86+.spec
+++ b/memtest86+.spec
@@ -18,7 +18,7 @@
 
 
 Name:           memtest86+
-Version:        4.10
+Version:        4.20
 Release:        1
 #
 License:        BSD3c(or similar)
@@ -37,7 +37,6 @@ Provides:       memtest86 > 3.2
 Url:            http://www.memtest.org
 Source:         http://www.memtest.org/download/%{version}/%{name}-%{version}.tar.bz2
 Patch0:         fix-destdir
-Patch1:         serial-enable
 Summary:        Memory Testing Image for x86 Architecture
 
 %description
@@ -62,14 +61,9 @@ Authors:
 %prep
 %setup
 %patch0 -p1
-%patch1 -p1
 
 %build
-%ifarch x86_64
-  make CC="gcc -m32" AS="as --32"
-%else
   make
-%endif
 
 %install
 install -D -m 0644 memtest.bin $RPM_BUILD_ROOT/boot/memtest.bin
diff --git a/serial-enable b/serial-enable
deleted file mode 100644
index d2a0360..0000000
--- a/serial-enable
+++ /dev/null
@@ -1,62 +0,0 @@
----
- config.h |    2 +-
- init.c   |    4 ++++
- serial.h |   10 ++++++----
- 3 files changed, 11 insertions(+), 5 deletions(-)
-
-Index: memtest86+-4.00/config.h
-===================================================================
---- memtest86+-4.00.orig/config.h
-+++ memtest86+-4.00/config.h
-@@ -13,7 +13,7 @@
- /* SERIAL_CONSOLE_DEFAULT -  The default state of the serial console. */
- /*	This is normally off since it slows down testing.  Change to a 1 */
- /*	to enable. */
--#define SERIAL_CONSOLE_DEFAULT 0
-+#define SERIAL_CONSOLE_DEFAULT 1
- 
- /* SERIAL_TTY - The default serial port to use. 0=ttyS0, 1=ttyS1 */ 
- #define SERIAL_TTY 0
-Index: memtest86+-4.00/init.c
-===================================================================
---- memtest86+-4.00.orig/init.c
-+++ memtest86+-4.00/init.c
-@@ -42,6 +42,7 @@ static void cpu_type(void);
- static void cacheable(void);
- static int cpuspeed(void);
- int beepmode;
-+extern short serial_cons;
- 
- static void display_init(void)
- {
-@@ -78,6 +79,9 @@ static void display_init(void)
- 	}
- 
- 	serial_echo_print("\x1B[0m");
-+
-+	if (!serial_cons && SERIAL_CONSOLE_DEFAULT)
-+		cprint (23, 0, "Timout on serial console: disabled");
- }
- 
- /*
-Index: memtest86+-4.00/serial.h
-===================================================================
---- memtest86+-4.00.orig/serial.h
-+++ memtest86+-4.00/serial.h
-@@ -140,10 +140,12 @@
- #define serial_echo_inb(a)    inb((a)+serial_base_ports[serial_tty])
- #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
- /* Wait for transmitter & holding register to empty */
--#define WAIT_FOR_XMITR \
-- do { \
--       lsr = serial_echo_inb(UART_LSR); \
-- } while ((lsr & BOTH_EMPTY) != BOTH_EMPTY)
-+#define WAIT_FOR_XMITR	\
-+ int _i = 1<<15;	\
-+ do { 			\
-+       lsr = serial_echo_inb(UART_LSR);	\
-+ } while ((lsr & BOTH_EMPTY) != BOTH_EMPTY && --_i); \
-+ if (!_i) serial_cons = 0
- 
- #if 0
- static inline void serial_echo(int ch)