The DOSEMU team is proud to announce DOSEMU 1.2.0,
the PC Emulator for x86 based Linux.
WHAT IS DOSEMU?
DOSEMU is a PC Emulator application that allows Linux to run a DOS
operating system in a virtual x86 machine. This allows you to run
many DOS applications. These are the capabilities of DOSEMU that are
color text and full keyboard emulation (via hotkeys) even on a terminal
built-in X-Windows support (includes IBM character set font)
including fullscreen X (via Ctrl-Alt-F)
graphics capability at the console (for most compatible video cards)
(requires suid-root or sudo)
graphics emulation in X for many color modes
(X-server may be in true color mode)
runs several 32-bit DPMI-compliant video games (including those based
on DOS/4GW) at the Linux console (suid-root) and on X (non-suid)
integrated (command line) instruction level debugger, various break
points, single stepping etc.
integrated EMS and XMS drivers
integrated packet driver
integrated mouse driver
integrated joystick driver
ASPI driver support (CD writers, scanners, tapes etc.)
(requires access rights to /dev/sgX)
support for redirected drives (any Linux directory can be 'mounted'
as DOS drive via the lredir command)
can even directly boot from a Linux directory containing all DOS files
sound support (including sound DMA and Midi)
NetWare and other network connectivity via built-in IPX and pktdrvr
the dosemu-freedos binary package starts a DOS-"C:\>"-Drive
'out-of-the-box' in a normal user's $HOME directory and runs without
any further configuration (no root rights needed)
WHAT IS NEW against version 188.8.131.52?
Many bugs have been fixed.
Easier configuration and installation from source code.
Much improved DPMI support.
Unicode support: translates between many different codepages and
character sets for keyboards, terminals and copy & paste in X.
Much improved sound support, including SoundBlaster 16 and
Midi emulation (but no OPL3 FM / Adlib yet).
Improved VGA emulation in X.
Fullscreen support in X using the Ctrl-Alt-F hotkey.
Console improvements: by avoiding POST more graphics cards can
be accessed directly in the "plainvga" mode. Raw keyboard support
now also works without special privileges.
Many improvements to the networking code (TUN/TAP).
DOSEMU shows the running DOS program in X and xterm title bars.
Better terminal support (more keys are recognized).
Improved I/O performance using asynchronous I/O.
Added large file support for file locking.
DPMI in suid-root DOSEMU is no longer inherently insecure; DOSEMU
now drops its root priviliges after initializing; a forked off
"I/O port server" (if necessary) allows access to the specified
I/O ports where the main DOSEMU is not capable.
DOSEMU can be run via sudo in the same way as suid-root (it will
revert to the identity of the original user) -- therefore it is
no longer necessary to install two seperate DOSEMUs (one suid-root
and one non-suid-root copy) for security. One non-suid-root copy is
all you need if you use sudo.
As a side-effect dosemu.users is no longer necessary; without a
dosemu.users file DOSEMU will only use its root privileges if it is
run on the Linux console.
Partition access, mouse access (console only) and serial access
are no longer automatically accomplished using root privileges
but must be regulated via permissions on the relevant /dev/xxx
Note that, as before, root permissions are in general not
necessary if DOSEMU is run in a terminal or in X.
Linux >= 2.0.30 (with IPC support, IPX support optional)
a DOS as guest-OS, which can be booted by DOSEMU
(FreeDOS is included in the RPM or can be downloaded as
When compiling DOSEMU yourself:
GCC 2.91.66 or higher and glibc 2.1.3 or higher are required
binutils > 184.108.40.206.25
bison, _not_ yacc, and flex
DOSEMU is set under GPL version 2 (see file COPYING in the distribution).
The DOS, which is processed (booted) by DOSEMU, may have any other policy and is
explicitly allowed to be proprietary.
This release could not have gotten out the door without the work of
our relentless development team, friends and contributors, consisting of
at least (sorted by first name):
Aaron Adam J. Richter Alan Cox
Alberto Vignani Alessandro Rubini Alexander R.Adams
Alexander V. Lukyanov Alistair MacDonald Amit Margalt
Andrew.Tridgell Andries Andy Shevchenko
Antonio Larrosa Arjan Filius Arne de Bruijn
Bart Oldeman Ben Davis Bernd Paysan
Bernd Schueler Christoph Niemann Clarence Dang
Corey Sweeney Daniel R. Barrlow David Brauman
David Etherton David Hansen David Hindman
David Hodges David Pinson Derek Fawcus
DJ Delorie Dong Liu Egbert Eich
Emmanuel Jeandel Eric W. Biederman Erik Mouw
Florian La Roche George K.Bronnikov Grant R. Guenther
Grigory Batalov Hans Lermen Herbert Xu
James Maclean Jason E Gorden Jochen Hein
John Davis John Kohl Jon Tombs
Josef Pavlik Julia A. Case Kang-Jin Lee
Karl Kiniger Karl-Max Wagner Kenneth Corbin
Kevin P Lawton Lam Lai Yin, Savio Larry Stephan
Lawrence K Mao Linus Torvalds Lutz Molgedey
Manfred Scherer Marcus Better Mark Rejhon
Marty Leisner Matthew Grant Maxim Ruchko
Michael E. Deisher Michael Karcher Oleg V. Zhirov
Pablo Saratxaga Pasi Eronen Pat Villani
Rainer Zimmermann Reinhard Karcher Rob Clark
Robert de Bath Rod May Ronnie
Rutger Nijlunsing Scott Buchholz Sergey Suleymanov
Stas Sergeev Steffen Winterfeld Theodore T'so
Tim Van der Linden Ulrich Weigand Uwe Bonnes
Urban Widmark Vinod G Kulkarni Wayne P Meissner
Witold Filipczyk Wojtek Pilorz
... and others too important to mention.
Of course, all those people involved in the FreeDOS development should be
mentioned here too, but before I fail to mention some of them, I better point
to http://www.freedos.org ;-)
The binary package is dynamically linked against glibc-2.2 and libX*
from XFree86. It should run on all recent Linux distributions.
Many thanks to all who have helped with this release, by sending bug
reports, patches, comments and/or ideas for DOSEMU! Our apologies for
not having answered every letter, and possibly missing some important
information. If you know something you think we should know, contact
us. We can be reached at: