diff --git a/debian/changelog b/debian/changelog
index 69545843f..70aa2b1b3 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-linux-2.6 (2.6.19-1~experimental.1) UNRELEASED; urgency=low
+linux-2.6 (2.6.20~rc4-1~experimental.1) UNRELEASED; urgency=low
 
   [ Martin Michlmayr ]
   * mipsel: Drop DECstation support (both r3k-kn02 and r4k-kn04).
diff --git a/debian/patches/debian/version.patch b/debian/patches/debian/version.patch
index d265ec2eb..f062358fd 100644
--- a/debian/patches/debian/version.patch
+++ b/debian/patches/debian/version.patch
@@ -1,30 +1,54 @@
-diff --git a/init/version.c b/init/version.c
-index 3ddc3ce..c2111a7 100644
---- a/init/version.c
-+++ b/init/version.c
-@@ -29,5 +29,15 @@ struct new_utsname system_utsname = {
- EXPORT_SYMBOL(system_utsname);
+diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
+index 92ea774..bbab264 100644
+--- a/fs/proc/proc_misc.c
++++ b/fs/proc/proc_misc.c
+@@ -254,10 +254,18 @@ static int version_read_proc(char *page, char **start, off_t off,
+ {
+ 	int len;
  
- const char linux_banner[] =
--	"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
--	LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
-+	"Linux version " UTS_RELEASE " "
+-	/* FIXED STRING! Don't touch! */
+ 	len = snprintf(page, PAGE_SIZE,
+ 		"%s version %s"
 +#ifdef LINUX_COMPILE_SYSTEM_OFFICIAL
-+	"(" LINUX_COMPILE_SYSTEM_DISTRIBUTION " "
-+	    LINUX_COMPILE_SYSTEM_VERSION ") "
-+	"(" LINUX_COMPILE_SYSTEM_MAINTAINER ") "
++		" (" LINUX_COMPILE_SYSTEM_DISTRIBUTION " "
++		     LINUX_COMPILE_SYSTEM_VERSION ")"
++		" (" LINUX_COMPILE_SYSTEM_MAINTAINER ")"
 +#else
 +# ifdef LINUX_COMPILE_SYSTEM_VERSION
-+	"(" LINUX_COMPILE_SYSTEM_VERSION ") "
++		" (" LINUX_COMPILE_SYSTEM_VERSION ")"
 +# endif
-+	"(" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ") "
+ 		" (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
 +#endif
-+	"(" LINUX_COMPILER ") " UTS_VERSION "\n";
+ 		" (" LINUX_COMPILER ")"
+ 		" %s\n",
+ 		utsname()->sysname,
+diff --git a/init/main.c b/init/main.c
+index 2b1cdaa..f860297 100644
+--- a/init/main.c
++++ b/init/main.c
+@@ -484,7 +484,16 @@ void __init __attribute__((weak)) smp_setup_processor_id(void)
+ 
+ static const char linux_banner[] =
+ 	"Linux version " UTS_RELEASE
++#ifdef LINUX_COMPILE_SYSTEM_OFFICIAL
++	" (" LINUX_COMPILE_SYSTEM_DISTRIBUTION " "
++	     LINUX_COMPILE_SYSTEM_VERSION ")"
++	" (" LINUX_COMPILE_SYSTEM_MAINTAINER ")"
++#else
++# ifdef LINUX_COMPILE_SYSTEM_VERSION
++	" (" LINUX_COMPILE_SYSTEM_VERSION ")"
++# endif
+ 	" (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
++#endif
+ 	" (" LINUX_COMPILER ")"
+ 	" " UTS_VERSION "\n";
+ 
+diff --git a/init/version.c b/init/version.c
 diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
 index d7b8a38..87035a0 100755
 --- a/scripts/mkcompile_h
 +++ b/scripts/mkcompile_h
-@@ -46,16 +46,34 @@ ( echo /\* This file is auto generated, 
+@@ -46,16 +46,34 @@ UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/"
  
    echo \#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\"
  
diff --git a/debian/patches/series/1~experimental.1 b/debian/patches/series/1~experimental.1
index c4b9e7355..13727266b 100644
--- a/debian/patches/series/1~experimental.1
+++ b/debian/patches/series/1~experimental.1
@@ -2,42 +2,12 @@
 + debian/kernelvariables.patch
 + debian/doc-build-parallel.patch
 + debian/scripts-kconfig-reportoldconfig.patch
-+ debian/powerpc-mkvmlinuz-support-ppc.patch
-+ debian/powerpc-mkvmlinuz-support-powerpc.patch
+#+ debian/powerpc-mkvmlinuz-support-ppc.patch
+#+ debian/powerpc-mkvmlinuz-support-powerpc.patch
+
 + bugfix/powerpc/build-links.patch
 + bugfix/powerpc/mv643xx-hotplug-support.patch
 + bugfix/powerpc/oldworld-boot-fix.patch
 + bugfix/powerpc/prep-utah-ide-interrupt.patch
 + bugfix/powerpc/serial.patch
-+ features/powerpc/efika/0001-Fix-compilation-issue-when-PPC_MPC52xx-and-PPC_MERGE-are-selected.diff
-+ features/powerpc/efika/0002-Add-USB-OHCI-glue-for-OpenFirmware-devices.diff
-+ features/powerpc/efika/0003-Add-MPC5200-serial-driver.diff
-+ features/powerpc/efika/0004-Add-MPC5200-CPU-PIO-driver-using-libata.diff
-+ features/powerpc/efika/0005-Add-MPC5200-specific-header.diff
-+ features/powerpc/efika/0006-Add-MPC5200-interrupt-controller-driver.diff
-+ features/powerpc/efika/0007-Add-MPC5200-ethernet-driver.diff
-+ features/powerpc/efika/0008-Add-MPC5200-SDMA-PIO-driver.diff
-+ features/powerpc/efika/0009-Added-RTAS-support-for-32bit-PowerPC.diff
-+ features/powerpc/efika/0010-Add-Efika-platform.diff
-+ features/powerpc/efika/0011-Filter-out-efika.diff
-+ features/powerpc/efika/0012-Backport-of_platform.diff
-+ features/powerpc/efika/0001-powerpc-Add-support-for-uevent-to-of_platform.txt 
 
-+ bugfix/arm/nslu2-disk-leds.patch
-+ bugfix/arm/nas100d-artop-temp-fix.patch
-+ features/arm/nslu2-setup-mac.patch
-+ features/arm/nslu2-eth-mac.patch
-+ features/arm/nas100d-setup-mac.patch
-+ features/arm/nas100d-eth-mac.patch
-+ features/arm/ixp4xx-0.2.1-driver.patch
-+ features/arm/ixp4xx-net-driver-fix-qmgr.patch
-+ features/arm/ixp4xx-net-driver-improve-mac-handling.patch
-+ features/arm/ixp4xx-net-build-fix.patch
-+ bugfix/mips/ide-scan.patch
-+ bugfix/mips/64bit-tulip.patch
-+ bugfix/mips/tulip_dc21143.patch
-+ bugfix/mips/eth-napi.patch
-+ bugfix/mips/ip22-zilog-console.patch
-+ bugfix/mips/sgi-ioc3.patch
-+ features/mips/sb1-duart.patch
-+ features/mips/qemu-vga.patch