diff --git a/debian/changelog b/debian/changelog
index ec704800..fc73d4a3 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -62,6 +62,7 @@ debian-cd (3.1.0) UNRELEASED; urgency=low
   * make_image: ensure correct quoting of variables when calling genisoimage.
     Closes: #507300.
   * boot-hppa: support KERNEL_PARAMS (so desktop= can be passed).
+  * boot-hppa: stop passing redundant boot parameters root and ramdisk_size.
 
  -- Frans Pop <fjp@debian.org>  Fri, 05 Dec 2008 10:04:03 +0100
 
diff --git a/tools/boot/lenny/boot-hppa b/tools/boot/lenny/boot-hppa
index 9397f8ab..7f03eaa3 100755
--- a/tools/boot/lenny/boot-hppa
+++ b/tools/boot/lenny/boot-hppa
@@ -52,9 +52,8 @@ install_languages "$CDROOT"
 
 K32=$(ls $CDROOT/install/vmlinux-*-parisc|head -1 | sed 's?^.*/install/?install/?g')
 K64=$(ls $CDROOT/install/vmlinux-*-parisc64|head -1 | sed 's?^.*/install/?install/?g')
-RSIZE=$(expr $(zcat "$CDROOT/install/initrd.gz" | wc --bytes) / 1024)
 
-add_mkisofs_opt $CDROOT/../$1.mkisofs_opts "-hppa-cmdline '0/vmlinux root=/dev/ram initrd=0/ramdisk ramdisk_size=$RSIZE${KERNEL_PARAMS:+ $KERNEL_PARAMS}'"
+add_mkisofs_opt $CDROOT/../$1.mkisofs_opts "-hppa-cmdline '0/vmlinux initrd=0/ramdisk${KERNEL_PARAMS:+ $KERNEL_PARAMS}'"
 add_mkisofs_opt $CDROOT/../$1.mkisofs_opts "-hppa-kernel-32 $K32"
 add_mkisofs_opt $CDROOT/../$1.mkisofs_opts "-hppa-kernel-64 $K64"
 add_mkisofs_opt $CDROOT/../$1.mkisofs_opts "-hppa-bootloader install/iplboot"