Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, On Sat, Jul 2, 2016 at 2:19 PM, Abe Mishler wrote: > > I'm interested in learning how games like DOOM (requires 3MB available) > were able to work. I know I know, read the source code. AFAIK, Doom was originally compiled with Watcom using a DOS extender (DOS4G

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Great tip!!! I'll have to try that! > On Jul 2, 2016, at 6:30 PM, Ulrich Hansen wrote: > > Hi Abe, > >> Am 01.07.2016 um 14:59 schrieb Abe Mishler : >> >> except linux can >> mount raw images for native file sharing > > Today I found out: If I

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Abe, > Am 01.07.2016 um 14:59 schrieb Abe Mishler : > > except linux can > mount raw images for native file sharing Today I found out: If I choose „VHD“ as type for the virtual harddisk in VirtualBox, I am able to mount the VirtualBox image in Windows too. See:

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

> On Jul 1, 2016, at 4:17 PM, Rugxulo wrote: > > Hi, > >> On Tue, Jun 28, 2016 at 10:08 AM, Eric Auer wrote: >> >> I think that even 597 kB of low DOS memory is plenty for old DOS programs. > > "597 kb should be enough for anyone." -- Eric Auer, 2016

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, On Tue, Jun 28, 2016 at 10:08 AM, Eric Auer wrote: > > I think that even 597 kB of low DOS memory is plenty for old DOS programs. "597 kb should be enough for anyone." -- Eric Auer, 2016:-) In Abe's recent screenshot, he shows that he's now getting (thanks to

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

> Am 01.07.2016 um 14:59 schrieb Abe Mishler : > >> >> 1?DEVICE=C:\FDOS\BIN\JEMMEX.EXE NOEMS X=TEST I=B000-B7FF I=C800-EFFF >> NOVME NOINVLPG >> > That works like a charm! Do those regions work for you? Yes. I tested it on a FreeDOS 1.1 guest on my Mac. And, as I don’t

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Ulrich! On 7/1/2016 3:35 AM, Ulrich Hansen wrote: > >> Am 01.07.2016 um 01:51 schrieb Abe Mishler > >: >> >> I have been learning a lot about JEMMEX as compared to the other >> drivers lately. > > Hi Abe, > > If you don’t mind, it would be

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

> Am 01.07.2016 um 01:51 schrieb Abe Mishler : > > I have been learning a lot about JEMMEX as compared to the other drivers > lately. Hi Abe, If you don’t mind, it would be great if you could try one last thing with VirtualBox and JEMMEX: Please try to start JEMMEX

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi again, On Fri, Jul 1, 2016 at 12:34 AM, Rugxulo wrote: > > But I agree, in theory, that JEMMEX shouldn't be preferred or > suggested without a good reason. But that's not my decision for FD 1.2 > (and I forget offhand what Jerome uses, I haven't downloaded any > recent

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, On Thu, Jun 30, 2016 at 6:51 PM, Abe Mishler wrote: > >> On Jun 30, 2016, at 6:19 PM, Rugxulo wrote: >> >> If JEMMEX is your only problem, then you have no problems. > > This idea has appeared before in this thread and it is a relief to hear it >

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, > On Jun 30, 2016, at 6:19 PM, Rugxulo wrote: > > Hi, > >> On Thu, Jun 30, 2016 at 6:17 AM, Abe Mishler wrote: >> >>> On 6/29/2016 1:03 PM, Rugxulo wrote: >> >> On the page that you sent regarding QEMU Binaries for Windows, it says: >> "QEMU for

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, On Thu, Jun 30, 2016 at 6:17 AM, Abe Mishler wrote: > >> On 6/29/2016 1:03 PM, Rugxulo wrote: > > On the page that you sent regarding QEMU Binaries for Windows, it says: > "QEMU for Windows is experimental software and might contain even > serious bugs, so use the

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, to bring in some thoughts from off-list... JEMMEX has a built-in HIMEM which apparently is known to have problems when memory useable for XMS is discontinuous, which happens quite often on modern (virtual) hardware. The UMBPCI author tries hard to keep supporting modern chipsets which can

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

> I think FreeDOS in QEMU on linux is the way to go (for me, at this time). Inspired by this thread I also looked into qemu (even installed it on my Mac). Just in case you missed it: There’s a great tutorial about running FreeDOS 1.1 in qemu. Part three is all about networking. :-) The author

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Rugxulo et al., On 6/29/2016 1:03 PM, Rugxulo wrote: > Hi, > > On Wed, Jun 29, 2016 at 10:05 AM, Abe Mishler wrote: >> >> On 6/28/2016 7:55 PM, Rugxulo wrote: >>> >>> I would recommend you (also) test under QEMU if you're that worried or >>> want (potentially) better

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, On Wed, Jun 29, 2016 at 10:05 AM, Abe Mishler wrote: > > On 6/28/2016 7:55 PM, Rugxulo wrote: >> >> I would recommend you (also) test under QEMU if you're that worried or >> want (potentially) better stability. >> > QEMU, while about 10x slower (on Win 8.1 amd64 host),

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

On 6/28/2016 7:55 PM, Rugxulo wrote: > Hi, > > On Tue, Jun 28, 2016 at 3:55 PM, Abe Mishler wrote: >> >> Strange, right? And not just on one computer, but three separate ones; each >> running different hardware and software (host OS). Although I would expect >> that the

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

> Am 29.06.2016 um 13:08 schrieb Don Flowers : > > The only drivers that work for this is Ulrich's FreeDOS 1.0 drivers Himem.exe > and "EMM386.EXE NOEMS" Before someone gets it wrong: The drivers were written by Tom Ehlert, Michael Devore and other fine people. Thanks!

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

I use Novell Personal Netware for networking with a dedicated server plus each of 4 other machines acting in SERVER/CLIENT mode The only drivers that work for this is Ulrich's FreeDOS 1.0 drivers Himem.exe and "EMM386.EXE NOEMS" (no other switch is necessary). I load DOS HIGH, UMB. This gives

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Am 28.06.2016 um 22:55 schrieb Abe Mishler : >> is pretty unstable, at least for me. > It seems like you should be excluding a different region of memory. From your > screenshot: E300-EDFF. The packet driver works, but FDAPM is still crashing when I exclude E300-EDFF.

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, On Tue, Jun 28, 2016 at 3:55 PM, Abe Mishler wrote: > > Strange, right? And not just on one computer, but three separate ones; each > running different hardware and software (host OS). Although I would expect > that the underlying differences are abstracted away by

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Uli and Abe, indeed it seems like it is not trivial to find the right excluded areas for UMB to have stability. Having no page frame is okay - EMS 4 aware software can still use EMS, only EMS 3 software will miss a frame. Normally it is enough to have 550k conventional free. To explain the

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Guys, > On Jun 28, 2016, at 3:39 PM, Ulrich Hansen wrote: > > >> Am 28.06.2016 um 21:19 schrieb Ulrich Hansen : >> >> The trick is to load PCNTPK low in option 1. Then it won’t crash with your >> JEMMEX options. At least for me. :-) >> >> PCNTPK

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi, On Tue, Jun 28, 2016 at 12:56 PM, Abe Mishler wrote: > > It's apparent that a well written book might help me come up > to speed on all of these memory modes and managers. I'm not an expert, but the simple answer is you don't need all of them. Pure XMS (and optional

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

> Am 28.06.2016 um 21:19 schrieb Ulrich Hansen : > > The trick is to load PCNTPK low in option 1. Then it won’t crash with your > JEMMEX options. At least for me. :-) > > PCNTPK INT=0x60 Okay, and FDAPM crashes too. I need to load it into conventional memory as well.

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

> Am 28.06.2016 um 20:41 schrieb Ulrich Hansen : > > If I look closely, I find that PCNTPK crashes at boot. So I have no network. > No wonder all the memory is free. > https://www.lazybrowndog.net/freedos/files/freedos1.1-vbox-opt1-memory2.png >

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Abe (and hi Eric!) > Am 28.06.2016 um 16:42 schrieb Abe Mishler : > > 1?DEVICE=C:\FDOS\BIN\JEMMEX.EXE NOEMS X=C900-DFFF I=TEST NOVME NOINVLPG > > Boot option 1 (http://tinypic.com/r/zm1boj/9 ): > Total memory Free: 26,699K > Total Expanded

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

On 6/28/2016 11:08 AM, Eric Auer wrote: > > Hi Abe, > >> Based on Eric's suggestion of using more cautious settings, >> I found the JEMMEX doc page >> (http://help.fdos.org/en/hhstndrd/base/jemmex.htm) > > The documentation is also included in your installation on disk. > >>

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Abe, > Based on Eric's suggestion of using more cautious settings, > I found the JEMMEX doc page > (http://help.fdos.org/en/hhstndrd/base/jemmex.htm) The documentation is also included in your installation on disk. > 1?DEVICE=C:\FDOS\BIN\JEMMEX.EXE NOEMS X=C900-DFFF I=TEST NOVME NOINVLPG

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Ulrich, Thanks for the link. I compared the 2 files and didn't find anything of significance. Your change: IF "%config%"=="2" PCNTPK INT=0x60 IF NOT "%config%"=="2" LH PCNTPK INT=0x60 seems smart, however. Based on Eric's suggestion of using more cautious settings, I found the JEMMEX doc

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Abe, if you like, take a look at: https://www.lazybrowndog.net/freedos/virtualbox There are three VirtualBox images of FreeDOS 1.1. I put quite some effort in them to make them work. I remember the crash you are talking about, but, sorry,

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Eric, Thanks for your time and attention. See my responses inline. On 6/27/2016 3:05 PM, Eric Auer wrote: > > Hi Abe, > >> upon bootup and selecting option 1, I get the following message: >> >> JemmEx v5.75 [05/21/11] >> System memory found at c900-dfff, region might be in use >> JemmEx loaded

Re: [Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Hi Abe, > upon bootup and selecting option 1, I get the following message: > > JemmEx v5.75 [05/21/11] > System memory found at c900-dfff, region might be in use > JemmEx loaded > Kernel: allocated 46 Diskbuffers = 24472 Bytes in HMA > > after which nothing ever happens. It hangs permanently.

[Freedos-user] FreeDOS 1.1 crashing in VirtualBox 5.0.22

Dear List, I've attempted to install FreeDOS 1.1 using VirtualBox 5.0.22 on 3 different machines with 3 different operating systems: (Macbook Pro (10.11.5), Windows 8.1 Home, and Windows 10 Pro). On each system, upon bootup and selecting option 1, I get the following message: JemmEx v5.75