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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!microsoft!hexnut!jvert
- From: jvert@microsoft.com (John Vert)
- Subject: Re: OS/2 Boot Manager and NT incompatibility; Read on!
- Message-ID: <1992Dec16.035049.11528@microsoft.com>
- Date: 16 Dec 92 03:50:49 GMT
- Organization: Microsoft Corporation
- References: <1992Dec14.034749.11780@cdf.toronto.edu> <1992Dec14.192226.16205@microsoft.com> <1992Dec15.124936.18461@ugle.unit.no>
- Lines: 73
-
- In article <1992Dec15.124936.18461@ugle.unit.no> amund@itk.unit.no (Amund Skavhaug) writes:
- >In article <1992Dec14.192226.16205@microsoft.com>, jvert@microsoft.com (John Vert) writes:
- >|>
- >|> [ giant anti-MS polemic deleted ]
- >|>
- >|> The reason that the NT Beta will not install with Boot Manager is NOT
- >|> because Microsoft hates IBM, or because Microsoft wants to make your life
- >|> miserable, or any other shadowy Microsoft conspiracy. The reason is
- >|> that Boot Manager plays games with the partition table. Notably, the
- >|> partition that NTLDR gets started from is no longer marked ACTIVE.
- >|> Instead, the Boot Manager partition is marked ACTIVE. Whether or not
- >|> you think IBM has broken the "rules" of the MBR and partition table,
- >|> the fact is that without a lot of amazing gymnastics (like Doug Hamilton
- >|> has outlined elsewhere) you cannot get Boot Manager and NTLDR to agree
- >|> on what partition should be marked ACTIVE.
- >|>
- >|> Since installation of NT over Boot Manager will likely result in either
- >|> an unbootable NT or an unbootable OS/2, Windows NT Setup does its best
- >|> to prevent this. You may consider this "sneaky" or "underhanded" if
- >|> you like. But the truth is that this configuration is not supported
- >|> for a REASON that has nothing to do with marketing.
- >|> jvert@microsoft.com (speaking, of course, for myself)
- >|>
- >
- >-- This is not true.
- >I made a primary dospartition active, then tried to install the october
- >NT beta (on floppies). On the first diskette NT hung, disk drive on,
- >had to switch off the power. So ... NT does not check for an active
- >bootmanager partition, it checks if it is there at all !
- >Then I took a brand new IDE disk, removed the old with both dos and
- >os2 on. Installed NT on a partition first on it. At NT boot time it
- >asked me if I wanted to boot NT or previous operating system...
- >there WAS NO previous operating system on the disk, I low level formatted it
- >before I started !
- >Then afterwards I installed bootmanager , installed the dos/os2 disk as a
- >slave disk. Booting os2 or dos from bootmanager was ok. Then I tried
- >NT from the bootmanager menu, it starts, then it looks for NTLDR and
- >dies. And I came up with the same conclusion as jvert@microsoft.com...
- >BUT then I booted dos, used norton utilities, changed bootmanagers
- >partitiontable id from 0A to 00.(Use diskedit.exe, it its EASY)
- > NB Still bootmanager was active !
- >Then I booted NT from the bootmanager menu, no problem at all !
- >What does this mean ? It is easy to make NT coexist with os2, and
- >jvert@microsoft.com is either misinformed, a lier, or MS has got
- >some really incompetent programmers (and these has told jvert).
- >
- >This is NOT `advocacy`, but information about how to try NT and os2
- >on the same machine easily....And watch NT eating up 16MB ram,
- >30MB swapfile before any programs are started :-)
- >
- >Regards, Amund Skavhaug
- >
- >Division of Engineering Cybernetics : Phone +47 7 594376
- >The Norwegian Institute of Technology : Fax +47 7 594399
- >N-7034 Trondheim : Email amund@itk.unit.no
- >NORWAY
- >
-
- Actually, what it REALLY means is that you have marked the active partition
- as UNUSED by setting its ID to 0. NTLDR skips unused partitions, so it
- does not find an active partition at all. If it does not find an active
- partition, it defaults to the first recognized partition, which actually
- might turn out to be the right one. (It might NOT be the right one, but
- it's a pretty good guess)
-
- You may, of course, still consider me a liar, misinformed, and incompetent.
- Direct those followups to alt.flame, which appears to be where Amund
- developed his amazingly professional demeanor. Also, please do not feel
- obligated to send me personal mail informing me what an incompetent
- fool I am, I have plenty of that left over from my last post..
-
- jvert@microsoft.com. (speaking for myself, of course)
-
-