diff --git a/doc/partition_offset.wiki b/doc/partition_offset.wiki
index c370c071..ff35e7a9 100644
--- a/doc/partition_offset.wiki
+++ b/doc/partition_offset.wiki
@@ -46,6 +46,10 @@ are non-zero. But to avoid any assumptions, all 32 kB get copied here.
 {{{
   dd if=RIPLinux-9.3-non-X.iso bs=1K count=32 of=RIPLinux-9.3-non-X.sysarea
 }}}
+Normally the System Area file with its MBR is provided by the Syslinux
+installation under the name isohdp[fp]x*.bin .
+E.g. /usr/lib/syslinux/isohdpfx.bin
+
 The files of the image are made accessible for reading
 {{{
   mount -o loop RIPLinux-9.3-non-X.iso /mnt
@@ -78,7 +82,7 @@ and plugged into a Debian system.
 yields
 {{{
    Device Boot      Start         End      Blocks   Id  System
-/dev/sdb1   *          64      119215       59576   17  Hidden HPFS/NTFS
+/dev/sdb1   *          64      120831       60384   17  Hidden HPFS/NTFS
 }}}
 
 I can mount /dev/sdb and /dev/sdb1 alike:
@@ -154,16 +158,6 @@ preparations.
   - If not to be marked bootable:
     What equipment would the partition need to justify having the mark ?
 
-- I am still puzzled by the cylinder-head-sector ambiguity. How does a reader
-of the partition table determine the numbers for heads/cylinder and
-sectors/head ?
-fdisk tells about my /dev/sdb
-{{{
-    105 heads, 17 sectors/track, 2193 cylinders, total 3915776 sectors
-}}}
-My partiton table rather was computed with 255 heads/cylinder, 63 sectors/head
-Debian does not mind the difference. (It uses the 32 bit LBAs, i assume.)
-
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 Application: