DOS 6. 22 install keeps failing

November 14, 2018 at 20:53:18
Specs: Android
Hello. I've been trying to build an old P100 system with DOS but every time I try to install it gets to disk 2 and fails at the "chkstate.sys" file. I've tried 2 different cooies of DOS, 2 different hard drives, a different floppy and even a different system and yet it always fails at the sand place! Any suggestions as to what's happening would be welcome. Thanks!

See More: DOS 6. 22 install keeps failing

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#1
November 15, 2018 at 06:08:32
Hi Jtelep, please provide further details:

Make and full model number of pc
Memory size
hdd size(s)
dos version(s)

If dos is the only os you are installing on the pc, I suspect the pc may be too large
for dos to handle.

When installing dos, it mostly is just a copying process, however presumably at some stage it checks if it is capable of running on the pc concerned.

Good Luck - Keep us posted.

message edited by Mike Newcomb


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#2
November 15, 2018 at 06:31:52
OK so it's a Pentium 100 and I am trying to install DOS 6.22 with 384MB of Ram. I tried this on a 10GB HDD and it failed with two different copies of DOS. I then remembered that I had an old Pentium Pro 150 that had only 32MB of Ram and was using a 3GB drive which (at the time) DOS installed fine on. I tried the same install on that host using a 6GB HDD (with the same media) and it failed at the same spot. I thought that if the hard drive was too big DOS would use only 2 GB and leave the rest as that's what it did with the 3 GB drive.

I honestly was unaware that DOS cared about what it was being installed on as it seems to have no problem partioning and formatting the drives but during the copy it just fails at the fails at the same point. I was going to try a 1 GB CF card next but I dunno if that'll work either. Any suggestions you have I would sure appreciate.

Thanks!


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#3
November 15, 2018 at 06:55:00
DOS has limitations:

2.1GB max partition size/8.4GB max hard-drive size (stay under these)
64MB max RAM limit (in fact Windows 3.1 generally runs better with around 32MB under DOS)
Many systems above PII class give DOS "hiccups".

Just some suggestions...

"Channeling the spirit of jboy..."


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#4
November 15, 2018 at 07:34:54
Thanks! I will adjust my system accordingly and see what happens. Any idea what the "chkstate.sys" file does and why the install would always hang there? Is it because it is actually "checking" my system and puking because it's finding its limitations being maxed out?

Thanks.


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#5
November 15, 2018 at 08:13:52
"Any idea what the "chkstate.sys" file does and why the install would always hang there?"

https://www.vfrazee.com/ms-dos/6.22...

Why it's hanging there would probably be a bad file on the install media. Don't rely on just one source for the install files.

"Channeling the spirit of jboy..."


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#6
November 15, 2018 at 08:59:23
My wild guess is that the second copy of DOS you tried to install
was made from the first, which had an unreadable file on a floppy.
So the bad file from the first was copied to the second. But if you
know they came from different sources, that would be highly unlikely.

-- Jeff, in Minneapolis


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#7
November 15, 2018 at 09:06:44
That's what I was thinking as well which brings me back to thinking that it's something with that file and the system it's being installed on.

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#8
November 15, 2018 at 09:13:40
> CHKSTATE.SYS
>
> Used by the MemMaker memory-optimization program to
> track the optimization process.

You could try deleting CHKSTATE.SYS from the install disk.
I don't remember if I used memmaker. I think maybe I did,
but my guess is that you'll never need to. And you can
probably get a good copy somewhere else.

-- Jeff, in Minneapolis


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#9
November 15, 2018 at 09:19:08
I'm guessing it's the problem. It's strange because right when it starts copying the file it comes back and says the disk is unreadable so I dunno if that means it can't read that particular file or if there really is something wrong with the disk. But I downloaded an image and the same thing happens at the same place on a different system. Weird...

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#10
November 15, 2018 at 13:12:01
Lower the RAM amount to 64MB (or less). Re-download DOS 6.22 from another source & create new disks.

https://winworldpc.com/product/ms-d...
http://www.thelegacypcproject.com/s...


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#11
November 18, 2018 at 03:58:11
Hi Jtelep,

if you have access to another working pc, with dos or Windows OS,
that can read the dos disks, just try copying the suspect file.

This should at least prove it is readable, as opposed to being part of the installation process....

Good Luck - Keep us posted.

message edited by Mike Newcomb


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#12
November 18, 2018 at 21:55:36
I just wanted to thank everyone for their input on the issue. Initislly I pulled out 2 of the 128MB stixks (leaving it with only 128MB) and at least managed to get DOS to finally install without issue. Then it started hanging at the "verifying DMI" at boot up. I finally found some older smaller sticks of memory though (32 MB) and viola! It came right up. I never knew DOS had these limitations and since the last time 8 used it was in the mid 90s having that much RAM would have been incredibly costly (I think I had about 8 MB back then).

Anyway thanks for all the help everyone!


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#13
November 19, 2018 at 02:21:25
Glad you got it working. Yep, it's incredible to believe how cheap RAM has gotten---and I too remember when it was almost $100/MB (if you could find it).

"Channeling the spirit of jboy..."


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#14
November 20, 2018 at 03:07:45
Hi T-R-A, you are getting forgetful in your old age! :-)

See replies, including yours, here:

https://www.computing.net/answers/d...

DOS can address higher than 640mb.

When this facility became available, using the dos LOADHIGH command released conventional memory..

Regards - Mike


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#15
November 20, 2018 at 15:44:53
T-R-A, you are getting forgetful in your old age! :-)"

Mike,

Where in that message does it state DOS 6.22 can address more than 640MB ???!!!

I've known for ages that it can address more than 640KB.

I think it's you who needs some new eyes in your old age to keep from being off by a factor of 1000.

Unmodified DOS 6.22 ignores anything more than 64MB:

https://www.vogons.org/viewtopic.ph...

"Channeling the spirit of jboy..."

message edited by T-R-A


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