How do I run dosemu as suid.

How do I run dosemu as suid.

[Eddie]

Hello.
I have been tyring to setup dosemu 1.1.3 to run as suid. 
I need it to poll a POS (both definitions apply. it's an old system that should have been replaced 10 years ago. I kid you 
not.)
system through the serial port. It works fine if I run it as root.  But I would like it to run as the admin user so it can poll the 
data on a cron job. Only the admin user will have access to it. Not too worried about the security issue.  

So, I did a system wide install, suid the dosemu.bin file, moved the config files to /etc/. Set unrestricted for user all in the 
users file. Set security to 0. But it still does not work. Lock file issues. 

I have read all the docs I could find and have swamped google checking the web and groups for answers. 
Found a lot of info, and I have tried a lot of things, but I just can't get it to work. 
I have been working on this for over a week now with no luck. I am desperate. I want to toss out the old DOS 
computers but I can't unless I can get this POS system talking to the Linux system. 

Please help. I have to go to Windows if I can't get this to work. (yuck) 
Thank you. 
Eddie

Re: How do I run dosemu as suid.

[Stas Sergeev]

Hello.

Eddie  wrote:
> I have been tyring to setup dosemu 1.1.3 to run as suid.
There might be no problems
running dosemu suid-root
unless you are using 1.0.2
version, and you don't.
Pay attention to a startup
messages. If dosemu have no
root privs, you'll see this:
"Running unpriviledged in low feature mode"

> system through the serial port. It works fine if I run it as root.  But
But you don't need root for
accessing serial, unless, again,
you are using 1.0.2.
What it needs is an ability to
create a lock files and access
to /dev/ttySx. Check the necessary
permissions.

> I have been working on this for over a week now with no luck.
Seems strange. Are there any error
messages on startup? Try also
producing the log such as -D9+cs
maybe that will help.