Re: [Freedos-user] Re: Re: Re: Re: GRUB for DOS How-To

[Michael Devore]

At 06:16 PM 12/30/2004 +0100, Eric Auer wrote:
 Which reminds me that VDS should probably be
on by default
No.
 but on the other hand is probably not stable enouh for
that yet?
Cite?
 And, by the way, what exactly where the effects of the SB
switch for EMM386? Would be cool if that stuff could be either (if it
has no bad side effects) on by default or could have some auto-enable
feature which turns on the SB stuff when needed (for SBPCI DOS drivers).
No.  It's only for programs which use INT 3 since versions of SB drivers 
will mung default INT 3 to a GPF.  NEWDES is an application known to have 
the problem.  Other applications which use default INT 3 interrupt or which 
have forgotten to turn off INT 3 embedded debugging code before release 
will also have problems when the SB drivers are loaded.

Never should be a default on condition.

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Re: [Freedos-user] Re: Re: Re: Re: GRUB for DOS How-To

[16BIT]

Eric Auer wrote:
Hi all,

1) Is it a bad practice to use the include monochrome area switch with 
MS-DOS and its EMM386?

I think yes, unless you desperately need the 32k extra UMB space.
[rest of text cut]
This is obviously true. As far as my own computing, I rarely need that 
extra 32K in DOS. I thought maybe Windows liked it for VMMs, but since I 
deleted Windows it does not really matter to me what Windows likes.

The reason I use EMM386 with is for the UMBs it provides. I recently 
discovered that UMBPCI.SYS works with my computer. (It didn't before so 
I presume updates have included support for my chipset.)

In any event, yesterday I reconfigured my FreeDOS to use HIMEM.EXE as 
the XMS manager and UMBPCI.SYS for the UMB support.

I now have 627 K free base memory with this configuration as opposed to 
624 K with EMM386.

And 160 K  available UMBs.
I also learned that it is not good practice to demonstrate the use of 
the I=B000-B7FF, if for no other reason than it adds unnecessary 
complication and could potentially cause some users problems they would 
not have otherwise.

Thanks.



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