diff --git a/shared_src/asm.S b/shared_src/asm.S
index db912e281..f53cbac9d 100644
--- a/shared_src/asm.S
+++ b/shared_src/asm.S
@@ -61,7 +61,7 @@ ENTRY(start)
 	. = EXT_C(start) + 0x8
 
 VARIABLE(install_partition)
-	.long	0xFF00FF
+	.long	0x020000
 VARIABLE(version_string)
 	.string "0.5"
 VARIABLE(config_file)
@@ -976,12 +976,8 @@ ENTRY(patch_code_end)
 
 ENTRY(linux_boot)
 	/* don't worry about saving anything, we're committed at this point */
-	call	EXT_C(stop_floppy)
 	cld	/* forward copying */
 
-	/* XXX new stack pointer in safe area for calling functions */
-	movl	$0x4000, %esp
-
 	/* copy kernel */
 	movl	$LINUX_SETUP, %eax
 	movl	LINUX_KERNEL_LEN_OFFSET(%eax), %ecx
@@ -992,6 +988,11 @@ ENTRY(linux_boot)
 	rep
 	movsl
 
+ENTRY(big_linux_boot)
+	/* XXX new stack pointer in safe area for calling functions */
+	movl	$0x4000, %esp
+	call	EXT_C(stop_floppy)
+
 	/* final setup for linux boot */
 
 	movw	$LINUX_SETUP_SEG, %ax