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中国DOS联盟论坛 The time now is 2026-09-06 07:37 |
47,812 topics / 349,914 posts / today 0 new / 48,268 members |
| DOS启动盘 & LOGO技术 （启动盘室） » Wengier, why can't your MSDOS710 run properly in a virtual machine? |
| Printable Version 1,691 / 8 |
| Floor1 nerdpal | Posted 2003-05-06 00:00 |
| 中级用户 Posts 37 Credits 282 From Liaoning | |
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I wonder if anyone else has run into this situation.
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| Floor2 Wengier | Posted 2003-05-06 00:00 |
| 系统支持 Posts 10,521 Credits 27,736 | |
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This is exactly a BUG in the virtual machine. In the “System Requirements” section of the readme for my MS-DOS 7.10 boot disk, there is a passage like this:
Note: This boot disk is best used in real mode, and should not be used in a virtual machine (especially Virtual PC), because BUGs in them (the virtual machines) themselves can cause this boot disk to fail to boot properly. |
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| Floor3 如是大师 | Posted 2003-05-06 00:00 |
| 元老会员 Posts 3,351 Credits 9,654 From 湖北 | |
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Since it's virtual, there are still some differences from real mode after all...
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| Floor4 bigcannon | Posted 2003-05-06 00:00 |
| 初级用户 Posts 28 Credits 175 | |
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The boot disk compatibility is not very good.
A virtual machine emulates some particular hardware. For example, VMWARE 4.0 emulates INTEL 440BX, plus some other things. Is it possible that on a real platform like that there would also be this kind of problem? Also, virtual machines emulate very general hardware, and they usually sacrifice performance in pursuit of compatibility. Now when I make boot disks, I always test them in a virtual machine first. If they don't work in the virtual machine, then I switch to another implementation method. For example, using MEMDISK to emulate a WINME boot disk won't boot in VMWARE 4.0, but if I switch to DISKEMU, there is no such problem. The following is quoted from Master Rushi on 2003-5-6 12:32:00: |
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| Floor5 Wengier | Posted 2003-05-06 00:00 |
| 系统支持 Posts 10,521 Credits 27,736 | |
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But I tested it on a real Intel 4x0BX computer and it could boot. It just doesn't work in the virtual machine.
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| Floor6 如是大师 | Posted 2003-05-06 00:00 |
| 元老会员 Posts 3,351 Credits 9,654 From 湖北 | |
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Wenger should really take a good look at this opinion. My real-time Chinese-localized boot disk never had problems before, but now on 845 boards I've really run into several setbacks, and I'm actively revising it right now......
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| Floor7 Wengier | Posted 2003-05-07 00:00 |
| 系统支持 Posts 10,521 Credits 27,736 | |
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All right, I will make some menu options to improve compatibility with all systems.
My MS-DOS 7.10 boot disk actually can run in VMWare (at least the first option has no problem), I've tested it. |
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| Floor8 nerdpal | Posted 2003-05-07 00:00 |
| 中级用户 Posts 37 Credits 282 From Liaoning | |
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Thanks, everyone. I've learned quite a bit more again. When I have time I'll definitely give everyone's messages a good read, 3x a lot
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| Floor9 如是大师 | Posted 2003-05-07 00:00 |
| 元老会员 Posts 3,351 Credits 9,654 From 湖北 | |
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Oh, you're welcome to come by often.
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