--- linux-2.6.7-rc2/init/main.c.org	2004-06-04 12:58:31.000000000 +0200
+++ linux-2.6.7-rc2/init/main.c	2004-06-04 13:43:02.000000000 +0200
@@ -103,8 +103,8 @@
 /*
  * Boot command-line arguments
  */
-#define MAX_INIT_ARGS 8
-#define MAX_INIT_ENVS 8
+#define MAX_INIT_ARGS 256
+#define MAX_INIT_ENVS 256
 
 extern void time_init(void);
 /* Default late time init is NULL. archs can override this later. */
--- linux-2.6.7/include/asm-i386/param.h.orig	2004-07-03 16:56:41.000000000 +0200
+++ linux-2.6.7/include/asm-i386/param.h	2004-07-03 19:10:53.358244832 +0200
@@ -18,6 +18,6 @@
 #endif
 
 #define MAXHOSTNAMELEN	64	/* max length of hostname */
-#define COMMAND_LINE_SIZE 256
+#define COMMAND_LINE_SIZE 4096
 
 #endif
diff -Nur --exclude '*.orig' linux-2.6.7-rc3.org/include/asm-i386/setup.h linux-2.6.7-rc3/include/asm-i386/setup.h
--- linux-2.6.7-rc3.org/include/asm-i386/setup.h	2004-06-07 21:14:42.000000000 +0200
+++ linux-2.6.7-rc3/include/asm-i386/setup.h	2004-06-08 11:29:19.000000000 +0200
@@ -17,7 +17,7 @@
 #define MAX_NONPAE_PFN	(1 << 20)
 
 #define PARAM_SIZE 2048
-#define COMMAND_LINE_SIZE 256
+#define COMMAND_LINE_SIZE 4096
 
 #define OLD_CL_MAGIC_ADDR	0x90020
 #define OLD_CL_MAGIC		0xA33F
diff -Nur --exclude '*.orig' linux-2.6.7-rc3.org/include/asm-s390/setup.h linux-2.6.7-rc3/include/asm-s390/setup.h
--- linux-2.6.7-rc3.org/include/asm-s390/setup.h	2004-06-07 21:14:58.000000000 +0200
+++ linux-2.6.7-rc3/include/asm-s390/setup.h	2004-06-08 11:30:38.000000000 +0200
@@ -9,7 +9,7 @@
 #define _ASM_S390_SETUP_H
 
 #define PARMAREA		0x10400
-#define COMMAND_LINE_SIZE 	896
+#define COMMAND_LINE_SIZE 	4096
 #define RAMDISK_ORIGIN		0x800000
 #define RAMDISK_SIZE		0x800000
 
--- linux-2.6.7/include/asm-ppc/setup.h.orig	2004-07-06 17:53:17.000000000 +0200
+++ linux-2.6.7/include/asm-ppc/setup.h	2004-07-06 17:55:37.428864888 +0200
@@ -8,7 +8,7 @@
 #include <asm-m68k/setup.h>
 /* We have a bigger command line buffer. */
 #undef COMMAND_LINE_SIZE
-#define COMMAND_LINE_SIZE	512
+#define COMMAND_LINE_SIZE	4096
 
 #endif /* _PPC_SETUP_H */
 #endif /* __KERNEL__ */
--- linux-2.6.7/arch/ppc/syslib/prom.c.orig	2004-07-06 17:53:30.000000000 +0200
+++ linux-2.6.7/arch/ppc/syslib/prom.c	2004-07-06 17:55:57.781770776 +0200
@@ -85,7 +85,7 @@
 extern void enter_rtas(void *);
 void phys_call_rtas(int, int, int, ...);
 
-extern char cmd_line[512];	/* XXX */
+extern char cmd_line[COMMAND_LINE_SIZE];
 extern boot_infos_t *boot_infos;
 unsigned long dev_tree_size;