Short: MultiUser patch for OS3.5/OS3.9 FastFileSystem
Type: util/misc
Author: Etienne Vogt (Etienne.Vogt@obspm.fr)

Original MultiUser Author: Geert Uytterhoeven

 This is a patch to create a NSD compatible MultiUserFileSystem from the
FastFileSystem provided with AmigaOS 3.5 or AmigaOS 3.9, allowing to use
MultiUser with disks bigger than 4 Gb. Consequently you must own a copy
of OS 3.5 or OS 3.9 to use this patch. OS 3.5 users are encouraged to get
the BoingBag 2a archive from www.amiga.com as it contains an updated FFS
(version 45.9 as in OS 3.9). Also, further improvements will only be
available for the latest FFS release, since it takes too much time to
also maintain outdated versions.
 Note however that the MultiUserFileSystem generated through this patch
will work on any Amiga with OS 2.04 or higher and also on 68000 systems.

 This patch was created through reverse engineering of the last version
available of the MultiUserFileSystem (V40.11) to extract the modifications
and insert them into the new V45 FFS. As it is a straight transposition,
there are in particular no fixes yet for known bugs or security holes of the
V40.11 muFS (such as the misfeature that allows anyone to create files in
the root directory).
 This is still an early beta release and I can't guarantee that it is safe to
use. BACKUP YOUR DISKS BEFORE TRYING TO INSTALL THIS MULTIUSERFILESYSTEM ON
YOUR AMIGA !!!
 This patch is provided "as is" without any warranty, either expressed or
implied. By using this patch, you accept the entire risk as to its quality
and performance.
 Only this archive may be freely redistributed. The MultiUserFileSystem
generated by it contains code from the AmigaOS 3.5 or AmigaOS 3.9
FastFileSystem and is thus subject to the same restrictions than AmigaOS
itself.

Installation
------------

 You must have OS 3.5 or 3.9 and the latest MultiUser distribution (1.8).
First rename any existing MultiUserFileSystem in L: to MultiUserFileSystem.old,
so you don't have to recreate it if something goes wrong. Then, create the V45.x
muFS with the spatch command included in this archive:

spatch -pmufs4510.pch -oL:MultiUserFileSystem L:FastFileSystem

 If your current L:FastFileSystem is version 45.9 (OS 3.9 or 3.5BB2), use the
mufs4510.pch patch file. If it is version 45.1 (OS 3.5), use the mufs455.pch
file.
 Use then your favourite harddisk installation tool (HDToolBox from OS3.5 for
example) to install the new MultiUserFileSystem into your harddisk's rdb area.

Changes
-------

 V45.10
  All muFS patches transfered to the 45.9 FastFileSystem, I hope without
  mistakes this time ;-).

 V45.5
  Fixed a potential crash of the V45 FFS on 2.x systems. When displaying
  an error requester, it opens intuition via the private V39 exec function
  TaggedOpenLibrary(). The patch will change this to a regular OpenLibrary()
  call.

 V45.4
  Big security bug fixed ! Due to a bad check of the protection flags on
  ACTION_DELETE, anyone could delete any file which had the owner delete
  flag enabled, just like on the plain FFS. Didn't I told you that this
  patch was still experimental >:-> ?
  This bug was present is all previous versions of the V45 mufs patch,
  but not in the original V40 version. Got there through careless cut &
  paste :-/

 V45.3
  Fixed a bad bug that caused muFS 45.2 to crash after being uninhibited.


 For more information about MultiUser, please refer to the original MultiUser
Release 1.8 documentation.