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Messages - OS4User

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Setup & Installation / Re: UEFI & SecureBoot?
« on: August 01, 2013, 05:27:33 pm »
What did help in some cases was to replace the eCS Loader with the OS/4 Loader - but you have to replace the kernel back to 104smp as well

looks like this issue is fixed in

Programming / Re: OS/4 kernel and extended KEE
« on: June 18, 2013, 11:24:47 pm »
  Since I last posted I have been using the OS4 kernel (retail) with no trouble. Maybe the freeze I got then was from something else (Flash??). I did have a POPUPLOG from DMISL.EXE which is something I've never had before...

would be interesting to see

  I have one question: Is os2krnl.ini necessary? I ask because I don't see anything in ___hlp$ that would make me think I need to add anything to os2krnl.ini, but maybe I don't understand the instructions....

OS/4 kernel with switched ON preload option will load all files which will be necessary on stage 1 of boot process into a kind of memory disk and then the hard drive will not be touched until the stage 2.

For this purpose kernel  builds a list of such files. This list includes  all BASEDEVs + PSD from config.sys,   BASEDEVs which loads without config.sys,  SNOOPERS from snoop.lst  and files mentioned in os4krnl.ini

Actually os4krnl.ini serves for a user to enable him to add files which are needed to be preloaded and about which the kernel didn't guess.

If during boot kernel will try to load some file which was not preloaded - user will receive a message something like  "Please add driver.sys to os4kernel.ini".

In majority of cases os4krnl.ini will be absent or empty. I personally can't imagine a situation when something has to be added there, but who knows.

Programming / Re: OS/4 kernel and extended KEE
« on: June 13, 2013, 11:38:25 pm »
What is ACPI4.SYS?

It will be an acpi driver for os/4 kernel. Current kernel is trying to load it, but in case it is missing nothing fatal happens.

Programming / Re: OS/4 kernel and extended KEE
« on: June 12, 2013, 02:22:04 pm »
  I gave this (4033) a try and when booting I get this error: 'File not found or corrupted: acpi4.sys'. I don't have this file (eCS 2.1).

acpi4.sys  is optional  -  system just will not use it.

It seemed to work well for about 5 minutes, but then my desktop froze and I had to hard reset.

It would be great if you could show com port log, especially at the moment of such freeze.

Is there anything in particular you want tested?

Nothing special just stability and working in general.

Programming / Re: OS/4 kernel and extended KEE
« on: June 12, 2013, 12:14:30 am »
A bug is fixed (freezing before switching to graphic mode)

Programming / OS/4 kernel and extended KEE
« on: June 10, 2013, 08:37:23 pm »
Started from ver 4032 OS/4 kernel will load clock03b.sys instead of clock01.sys.

Clock03b uses Extended KEE, which includes KernSetIRQ and KernEOI (

Clock03b contains two drivers  CLOCK$ and TIMER0$ so timer0.sys  no more needed, it will not be loaded any way even if it will not be removed from config.sys

As you may guess Clock03b has  two _32_  bit only  interrupt service routines (for IRQ0 and IRQ8).

Clock03b  has many advantages comparative to pair clock01 + timer0  -  it is based on source code from clock01 by  Tsurgaev A.V. (Цургаев А.В.)

For those who is brave enough here is a link to download and test it.

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