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- Newsgroups: comp.os.ms-windows.programmer.win32
- Path: sparky!uunet!microsoft!hexnut!jvert
- From: jvert@microsoft.com (John Vert)
- Subject: Re: Installing NT
- Message-ID: <1992Jul30.073720.6505@microsoft.com>
- Date: 30 Jul 92 07:37:20 GMT
- Organization: Microsoft Corporation
- References: <1992Jul27.091312.1@vthvax.tamu.edu> <Bs5v9D.3p@fmsrl7.srl.ford.com>
- Lines: 77
-
- In article <Bs5v9D.3p@fmsrl7.srl.ford.com> vscarafi@eccdb1.pms.ford.com (Vincent F. Scarafino) writes:
- >joel@vthvax.tamu.edu writes:
- >> I'm having trouble installing WNT. One problem is that I have to let
- >> OS/2 remain on a bootable partition. I know this is unsupported but
- >> I have no choice. I also only have 8 meg of ram. Will NT install with
- >> only 8 meg of ram? Here's what i did:
- >>
- >> - I partitioned the disk with a 1 meg primary boot partition, a primary 135 meg
- >> os/2 partition, and 2 135 meg extended dos partitions.
- >>
- >> - Installed os/2 with it's (flexboot) program.
- >>
- >> - Rebooted. Selected dos from os/2's bootloader.
- >>
- >> - Used dos2nt to install NT on C drive and edited the ini files.
- >>
- >> - Rebooted. Selected dos from os/2's boot manager, which brought
- >> up NT's boot manager. Selected NT...
- >>
- >> Windows NT
- >> Portable Bootloader
- >> (c) Microsoft
- >>
- >> Warning! - Incorrect EISA memory configuration info.
- >> Windows NT will use the ISA memory configuration information.
- >>
- >> Loading...
- >>
- >> MS Windows NT
- >> MnInit: 8192 Kb Available memory
- >> *** Fatal system error: 0x00000069
- >> *** Phase 1 i/o init failed.
- >> (hang)
- >>
- >> I seems to me like os/2 and it's bootloader is not my problem. Is it my
- >> memory or is it really the EISA configuration? Since dos and os/2 work
- >> correctly, I would think the EISA configuration sould work under NT.
- >>
- >> I know this is a bit of a kludge but could someone point out any invalid
- >> assumptions i have made?
- >>
- >> Joel
- >>
- >I get the same EISA memory configuration error when I bring up NT. It doesn't
- >cause me any problems. I have 12 meg of memory, though. Is your swap file
- >at least 20 meg in size? That was documented as requirement for NT to come
- >up.
- >
- >Vince
-
-
- The EISA memory warning is just that, a warning. On EISA machines, NTLDR
- scans the EISA bus in order to determine how much memory is available.
- This usually works, but we have found a number of systems that do not
- update the EISA configuration information automatically when memory is
- added to the system. So NTLDR also checks the ISA memory configuration
- with the standard BIOS call. This ALWAYS works (probably because this is
- the one DOS uses, so PC makers actually test it!)
-
- So this warning just means that the ISA BIOS call says 8Mb (or 12Mb) but
- the EISA configuration reports less. (probably 4 or 1Mb) You can make
- this warning go away by running the EISA configuration disks and manually
- updating the entry for installed memory. I think this is in the release
- notes.
-
- When NTLDR detects this incorrect EISA configuration, it just
- ignores the EISA data and uses the ISA data. It is not responsible for
- your system failing to boot.
-
- (Why use the EISA at all if it's not always right? It allows us to
- support EISA machines with more than 64Mb of RAM, and it allows us to
- support EISA machines with discontiguous chunks of RAM. The ISA BIOS
- call will not handle either of these cases.)
-
- jvert@microsoft.com
- Not a Microsoft Spokesperson
- I just work here
-