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1996-09-22
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[$Header: D:/32bits/ext2-os2/doc/ext2-os2/RCS/README,v 1.1 1996/09/22 23:14:55 Willm Exp Willm $]
╔═══════════════════════════════════════════════════════════════════════╗
║ Linux ext2 file system driver for OS/2 2.x and WARP - Allows OS/2 to ║
║ access your Linux ext2fs partitions as normal drive letters. ║
║ Copyright (C) 1995, 1996 Matthieu WILLM ║
║ ║
║ This program is free software; you can redistribute it and/or modify ║
║ it under the terms of the GNU General Public License as published by ║
║ the Free Software Foundation; either version 2 of the License, or ║
║ (at your option) any later version. ║
║ ║
║ This program is distributed in the hope that it will be useful, ║
║ but WITHOUT ANY WARRANTY; without even the implied warranty of ║
║ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ║
║ GNU General Public License for more details. ║
║ ║
║ You should have received a copy of the GNU General Public License ║
║ along with this program; if not, write to the Free Software ║
║ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ║
╚═══════════════════════════════════════════════════════════════════════╝
EXT2-OS2 VERSION 2.0 (BETA 32 BITS EDITION)
IMPORTANT NOTICE :
------------------
This release of ext2-os2 is a *BETA* 32 bits version. People who want
stability must use the stable 16 bits version which can be found at:
ftp://ftp-os2.nmsu.edu/os2/diskutil/ext2_09b.zip
ftp://sunsite.unc.edu/pub/Linux/system/Filesystems/ext2/ext2_09b.zip
ftp://ftp.leo.org/pub/com/os/os2/drivers/ifs/ext2_09b.zip
ftp://ftp-os2.cdrom.com/pub/os2/diskutil/ext2_09b.zip
The particularity, features and restrictions of this 32 bits port are
discussed in the README.32 file.
WHAT IS EXT2-OS2 ?
-------------------
ext2-os2.ifs is a file system driver that allows OS/2 to seamlessly access
Linux native partitions (ext2fs partitions) in both read and write modes.
Once installed, Linux partitions appear as standard OS/2 drive letters, one
per Linux partition. It is a port of the original Linux ext2fs kernel code.
INSTALLATION AND USAGE INSTRUCTIONS :
------------------------------------
Please consult the online help file (ext2-os2.inf) for
IMPORTANT installation and configuration instructions.
Please read the documentation BEFORE trying the driver !!
A HTML version of the documentation is also available (ext2-os2.htm)
This HTML version has been produced from the IPF version with IBM
Hyperwise. It can be viewed with any good web browser, such as the
WebExplorer included in the OS/2 Bonus Pack.
***********************************************
***** IMPORTANT WARNING - READ THIS FIRST *****
***********************************************
ext2-os2 is a FILE SYSTEM DRIVER. Being a driver it runs at the most
privileged level of the OS/2 operating system, known as "kernel mode".
IN KERNEL MODE THERE IS NO MORE CRASH PROTECTION. It means that if a bug
occurs in the driver IT CAN CAUSE A HANG OR A SYSTEM HALT, AND THUS CAN
CAUSE LOSS OF DATA.
- I STRONGLY SUGGEST YOU TO MAKE A BACKUP OF ALL YOUR DATA (EVEN IF THEY
ARE NOT LOCATED ON A LINUX PARTITION) PRIOR TO USE THIS DRIVER.
- DON'T USE THIS DRIVER ON A PRODUCTION MACHINE, OR IF YOU MANIPULATE
CRITICAL DATA.
- USE IT AT YOUR OWN RISKS, AND ONLY ON A MACHINE YOU ACCEPT TO CRASH
AND REINSTALL.
- BE AWARE THAT THIS DRIVER WILL GIVE FULL UNRESTRICTED (ROOT) ACCESS TO
ALL YOUR EXT2FS PARTITIONS FROM OS/2.
MAIN NEW FEATURES SINCE V0.9 :
-----------------------------
- Well ... the 32 bits port !
- Swapping on a Linux ext2fs partition is now supported.
INCLUDED IN THIS PACKAGE :
--------------------------
The package includes Deon van der Westhuysen's Linux partition filter V 1.2c
This filter driver will allow you to make you Linux partitions visible to OS/2
without altering the partition table, so that ext2-os2.ifs can mount them.
Please look at the file ext2flt.doc and ext2-os2.inf for its usage and Deon's
copyright notice.
I recompiled ext2flt.flt with MS Visual C++ simply because I don't have borland C++,
and I needed to temporarily include some debugging code to solve problems with
strategy 2 I/Os (in fact the problems were in OS2DASD.DMD !). Normally this "MS
Visual C++" version should behave absolutely like the original Borland compiled version.
But in case you prefer using the original version, you can find it on ftp-os2.nmsu.edu
(/os2/diskutil/e2flt12b.zip) AND on quark.cs.sun.ac.za (/pub/ext2flt/e2flt12c.zip).
See the file ext2flt/makefile.msc for details on the changes I made.
DEFAULTS SETTINGS :
-------------------
- The default behavior after installation is read only. To turn on read/write
access you have to specify -rw on the ext2-os2.ifs command line AND /W
on the ext2flt.flt command line.
WHERE TO FIND EXT2-OS2 :
------------------------
You can find ext2-os2 mainly on the following sites (or in their incoming directory):
ftp://ftp-os2.nmsu.edu/os2/diskutil/ext2_200.zip
ftp://sunsite.unc.edu/pub/Linux/system/Filesystems/ext2/ext2_200.zip
ftp://ftp.leo.org/pub/comp/os/os2/drivers/ifs/ext2_200.zip
ftp://ftp-os2.cdrom.com/pub/os2/diskutil/ext2_200.zip
Please feel free to contact me for any question on ext2-os2. I'd also like to get
some feedback on how it works on your system and what new features you would like
...this helps me improve it ! Success stories also interest me.
Matthieu WILLM
willm@ibm.net (home)
mwillm@vnet.ibm.com (work)
Note : file_id.diz contents, for BBS sysops !
---- Cut here ----
ext2-os2 V2.0 : Linux ext2fs IFS (file
system driver) for OS/2. Allows OS/2 to
access Linux native partitions (ext2fs
partitions) as normal OS/2 drive letters.
Includes also Deon van der Westhuysen's
Linux partition filter driver (ext2flt.flt).
Licence agreement : GNU GPL.
Matthieu WILLM
Home : willm@ibm.net
Work : mwillm@vnet.ibm.com
---- Cut here ----