* Re: Minix 1.1 with QEMU [not found] <5e534cc7-2a99-baa5-fc8f-63d0d8e85c97@gmail.com> @ 2020-09-23 16:53 ` Philippe Mathieu-Daudé 2020-09-23 17:00 ` Will Senn 0 siblings, 1 reply; 3+ messages in thread From: Philippe Mathieu-Daudé @ 2020-09-23 16:53 UTC (permalink / raw) To: Will Senn, qemu-discuss, qemu-devel; +Cc: Hervé Poussineau, John Snow Hi Will, On 9/23/20 6:45 PM, Will Senn wrote: > Long time user, first time poster :) > > So, I'd like to be able to run Minix 1.1 on my Macbook Pro mid-2012 > w/16gb RAM (MacOS 10.14.6 Mojave). Qemu will run pretty ancient OS'es > such as DOS 2.0, which I use all of the time. However, I'm having some > difficulty getting Minix to run. I am able to boot the first floppy, but > when I change to the second floppy, the system freezes and I can't tell > what is going on. Here's what I did to get this far: > > brew install qemu > > qemu-system-i386 --version > QEMU emulator version 5.1.0 > > mkdir ~/workspaces/retro-workspace/minix-1.1 > cd ~/workspaces/retro-workspace/minix-1.1 > aria2c > http://download.minix3.org/previous-versions/bzipped/Intel-1.1.tar.bz2 > tar xvjf Intel-1.1.tar.bz2 > cp Intel-1.1/floppy_disk1 ./Disk01.img > cp Intel-1.1/floppy_disk2 ./Disk02.img > cp Intel-1.1/floppy_disk3 ./Disk03.img > cp Intel-1.1/floppy_disk4 ./Disk04.img > > > qemu-system-i386 -drive > file=Disk01.img,format=raw,if=floppy,media=disk,readonly=off,index=0,snapshot=on > \ > -boot a \ > -no-fd-bootchk \ > -monitor telnet::2222,server,nowait -serial mon:stdio > > Qemu boots to the Minix 1.1 Boot screen and says to swap to floppy 2, so > in the monitor: > change floppy0 Disk02.img raw > > I press l (el) and it scans the disk, lists the files on the disk and > reports no errors, but when I press =, it does a carriage return and > just sits there. I'm pretty sure this is the Minix going bye bye and not > necessarily QEMU, but I'm wondering if there is a way to see what QEMU > thinks it is doing or if it is what's hung? Usually, at this point, > Minix reads the disk contents into a Ramdisk and boots Minix. > > Food for thought... Minix expects to run on an IBM PC (5150), IBM PC XT > (5160), or compatible, and therefore the I/O is written for whatever > floppy controller was extant at that time (I'm guessing here), so if > that's different than modern day floppies, I suppose this could cause > the problem I'm experiencing here. Is there a way to see the floppy > controller activity in QEMU? Similarly, I gather it expects a CGA > compatible monitor (EGA/VGA, etc should be fine). Can you try adding '-machine isapc', which is closer to the 5150? > > I appreciate your help on this. > > Minix 1.1 works 'ok' in 86Box and other IBM PC emulations, so I know the > floppies are fine. > > Thanks! > > Will > > > > -- > GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF > ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Minix 1.1 with QEMU 2020-09-23 16:53 ` Minix 1.1 with QEMU Philippe Mathieu-Daudé @ 2020-09-23 17:00 ` Will Senn 2020-09-25 17:27 ` John Snow 0 siblings, 1 reply; 3+ messages in thread From: Will Senn @ 2020-09-23 17:00 UTC (permalink / raw) To: Philippe Mathieu-Daudé, qemu-discuss, qemu-devel Cc: Hervé Poussineau, John Snow [-- Attachment #1: Type: text/plain, Size: 3055 bytes --] On 9/23/20 11:53 AM, Philippe Mathieu-Daudé wrote: > Hi Will, > > On 9/23/20 6:45 PM, Will Senn wrote: >> Long time user, first time poster :) >> >> So, I'd like to be able to run Minix 1.1 on my Macbook Pro mid-2012 >> w/16gb RAM (MacOS 10.14.6 Mojave). Qemu will run pretty ancient OS'es >> such as DOS 2.0, which I use all of the time. However, I'm having some >> difficulty getting Minix to run. I am able to boot the first floppy, but >> when I change to the second floppy, the system freezes and I can't tell >> what is going on. Here's what I did to get this far: >> >> brew install qemu >> >> qemu-system-i386 --version >> QEMU emulator version 5.1.0 >> >> mkdir ~/workspaces/retro-workspace/minix-1.1 >> cd ~/workspaces/retro-workspace/minix-1.1 >> aria2c >> http://download.minix3.org/previous-versions/bzipped/Intel-1.1.tar.bz2 >> tar xvjf Intel-1.1.tar.bz2 >> cp Intel-1.1/floppy_disk1 ./Disk01.img >> cp Intel-1.1/floppy_disk2 ./Disk02.img >> cp Intel-1.1/floppy_disk3 ./Disk03.img >> cp Intel-1.1/floppy_disk4 ./Disk04.img >> >> >> qemu-system-i386 -drive >> file=Disk01.img,format=raw,if=floppy,media=disk,readonly=off,index=0,snapshot=on >> \ >> -boot a \ >> -no-fd-bootchk \ >> -monitor telnet::2222,server,nowait -serial mon:stdio >> >> Qemu boots to the Minix 1.1 Boot screen and says to swap to floppy 2, so >> in the monitor: >> change floppy0 Disk02.img raw >> >> I press l (el) and it scans the disk, lists the files on the disk and >> reports no errors, but when I press =, it does a carriage return and >> just sits there. I'm pretty sure this is the Minix going bye bye and not >> necessarily QEMU, but I'm wondering if there is a way to see what QEMU >> thinks it is doing or if it is what's hung? Usually, at this point, >> Minix reads the disk contents into a Ramdisk and boots Minix. >> >> Food for thought... Minix expects to run on an IBM PC (5150), IBM PC XT >> (5160), or compatible, and therefore the I/O is written for whatever >> floppy controller was extant at that time (I'm guessing here), so if >> that's different than modern day floppies, I suppose this could cause >> the problem I'm experiencing here. Is there a way to see the floppy >> controller activity in QEMU? Similarly, I gather it expects a CGA >> compatible monitor (EGA/VGA, etc should be fine). > Can you try adding '-machine isapc', which is closer to the 5150? > >> I appreciate your help on this. >> >> Minix 1.1 works 'ok' in 86Box and other IBM PC emulations, so I know the >> floppies are fine. >> >> Thanks! >> >> Will >> >> >> >> -- >> GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF >> Phillipe, My new incantation is: qemu-system-i386 -machine isapc -drive file=Disk01.img,format=raw,if=floppy,media=disk,readonly=off,index=0,snapshot=on -boot a -no-fd-bootchk -monitor telnet::2222,server,nowait -serial mon:stdio with the same outcome :(. Thanks for the suggestion, I'll keep it in mind for other projects. Will -- GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF [-- Attachment #2: Type: text/html, Size: 3973 bytes --] ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Minix 1.1 with QEMU 2020-09-23 17:00 ` Will Senn @ 2020-09-25 17:27 ` John Snow 0 siblings, 0 replies; 3+ messages in thread From: John Snow @ 2020-09-25 17:27 UTC (permalink / raw) To: Will Senn, Philippe Mathieu-Daudé, qemu-discuss, qemu-devel Cc: Hervé Poussineau On 9/23/20 1:00 PM, Will Senn wrote: > On 9/23/20 11:53 AM, Philippe Mathieu-Daudé wrote: >> Hi Will, >> >> On 9/23/20 6:45 PM, Will Senn wrote: >>> Long time user, first time poster :) >>> >>> So, I'd like to be able to run Minix 1.1 on my Macbook Pro mid-2012 >>> w/16gb RAM (MacOS 10.14.6 Mojave). Qemu will run pretty ancient OS'es >>> such as DOS 2.0, which I use all of the time. However, I'm having some >>> difficulty getting Minix to run. I am able to boot the first floppy, but >>> when I change to the second floppy, the system freezes and I can't tell >>> what is going on. Here's what I did to get this far: >>> >>> brew install qemu >>> >>> qemu-system-i386 --version >>> QEMU emulator version 5.1.0 >>> >>> mkdir ~/workspaces/retro-workspace/minix-1.1 >>> cd ~/workspaces/retro-workspace/minix-1.1 >>> aria2c >>> http://download.minix3.org/previous-versions/bzipped/Intel-1.1.tar.bz2 >>> tar xvjf Intel-1.1.tar.bz2 >>> cp Intel-1.1/floppy_disk1 ./Disk01.img >>> cp Intel-1.1/floppy_disk2 ./Disk02.img >>> cp Intel-1.1/floppy_disk3 ./Disk03.img >>> cp Intel-1.1/floppy_disk4 ./Disk04.img >>> >>> >>> qemu-system-i386 -drive >>> file=Disk01.img,format=raw,if=floppy,media=disk,readonly=off,index=0,snapshot=on >>> \ >>> -boot a \ >>> -no-fd-bootchk \ >>> -monitortelnet::2222,server,nowait -serial mon:stdio >>> >>> Qemu boots to the Minix 1.1 Boot screen and says to swap to floppy 2, so >>> in the monitor: >>> change floppy0 Disk02.img raw >>> >>> I press l (el) and it scans the disk, lists the files on the disk and >>> reports no errors, but when I press =, it does a carriage return and >>> just sits there. I'm pretty sure this is the Minix going bye bye and not >>> necessarily QEMU, but I'm wondering if there is a way to see what QEMU >>> thinks it is doing or if it is what's hung? Usually, at this point, >>> Minix reads the disk contents into a Ramdisk and boots Minix. >>> You can turn on tracing! See docs/devel/tracing.txt for more. You can also run QEMU under GDB and break on floppy functions to see what's going on if you are so inclined. >>> Food for thought... Minix expects to run on an IBM PC (5150), IBM PC XT >>> (5160), or compatible, and therefore the I/O is written for whatever >>> floppy controller was extant at that time (I'm guessing here), so if >>> that's different than modern day floppies, I suppose this could cause >>> the problem I'm experiencing here. Is there a way to see the floppy >>> controller activity in QEMU? Similarly, I gather it expects a CGA >>> compatible monitor (EGA/VGA, etc should be fine). >> Can you try adding '-machine isapc', which is closer to the 5150? >> >>> I appreciate your help on this. >>> >>> Minix 1.1 works 'ok' in 86Box and other IBM PC emulations, so I know the >>> floppies are fine. >>> >>> Thanks! >>> >>> Will >>> >>> >>> >>> -- >>> GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF >>> > Phillipe, > > My new incantation is: > > qemu-system-i386 -machine isapc -drive > file=Disk01.img,format=raw,if=floppy,media=disk,readonly=off,index=0,snapshot=on > -boot a -no-fd-bootchk -monitor telnet::2222,server,nowait -serial > mon:stdio > > with the same outcome :(. Thanks for the suggestion, I'll keep it in > mind for other projects. > > Will > > -- > GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF > This isn't the first time I've seen a report of floppy disks behaving poorly in older operating systems. I'm afraid I don't have the time to really investigate these issues, but I am happy to take patches. --js ^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <5e534cc7-2a99-baa5-fc8f-63d0d8e85c97@gmail.com>
2020-09-23 16:53 ` Minix 1.1 with QEMU Philippe Mathieu-Daudé
2020-09-23 17:00 ` Will Senn
2020-09-25 17:27 ` John Snow
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