Microsoft > Windows XP
bootsect.dos in XP & DOS dual boot - how to fix it?
MIRKOSOFT:
Hi!
I tried to create dual boot DOS & XP by NTLDR.
DOS item I set by:
C:\="MS-DOS 7.10"
at boot selection between XP and DOS when I select DOS it reports that bootsect.dos is missing.
I know that I did never DOS FAT32 partition active and booted only from floppy, what I do to today, XP boot floppy have too.
I found over the web that bootsect.dos is possible to restore by typing
SYS C:
but I don't want to touch boot info so Q is:
Is possible to create or get bootsect.dos by any way?
Thank you for all suggestions.
Miro
Geek-9pm:
Yes, it can be done. But I do not recommend it.
This is almost no reason to have bother an older version of MS-DOS and Windows XP on the same computer.
Forget about doing it with a large drive. It will drive you crazy.
Can you explain why u need it?
Here is one of many videos about how to install MS DOS 7.1 (skip the ads.)
Use a small hard drive and a small partition for MS-DOS. . Yes small. And Leave space for XP. Do not start with XP already on it.
Did do it the way he says? Really?
You must do the drive the old MS dos ways is how to have to start.
After That install Windows XP. Just maybe XP will do it right for you.
MIRKOSOFT:
Hi!
Ok, what I want and what I did.
I have old notebook with IDE 80GB HDD.
HDD has three partitions
1. MS-DOS 5GB FAT32
2. XP 30GB FAT32
3. OSX86 30GB HFS+
rest is free
Notebook has OSX bootloader and I'm booting into DOS by floppy and XP too, directly to OSX - this is reason why I need do not touch bootloader (I know not any OSX bootloader for floppy).
Purpose:
I'm retrocomputing fan and I'm programming for DOS. XP I'm using only for compatibility with other currently not working software on my Windows 10 x64, even when it is not possible to run iby NTVDMx64.
I have OSX for creating software for Universal Binaries (10.4 is last OSX supporting it) and when I learn anything more with OSX, I'll programming also for new OSX versions.
I want to add to free space on HDD also Linux - but don't know how to install Linux bootloader to first Linux partition instead MBR.
Linux purpose is same like OSX.
DOS I'm using also for my favorite retrocomputers - 8/16-bit Commodore computers - and have software which allows Commodore computer read/write from/to PC HDD, floppy or read CD/DVD, but software requires DOS, max. Windows 98.
I'm programming on my PC and retrocomputing is my hobby.
So why still NTLDR?
I have XP bootfloppy and I added there DOS and possible is also to add Linux - so I will need not to exchange floppies to boot...
DOS item has only problem with bootsect.dos
Linux item is yet missing 'cause I don't know how to install Linux bootloader into 1st Linux partition instead MBR.
If is possible to get any bootloader for OSX86 which can be placed on floppy it can solve all - bootloader must to stay OSX - it is not possible to boot OSX by other - I tried GRUB and selection of OSX caused only reboot, Windows/DOS bootloader works not totally.
So, that's it.
If you can help me with bootsect.dos and even installing Linux bootloader info 1st partition I will be really thankful.
Miro
Geek-9pm:
In order to provide you a quick and detailed response I am using dictation. My typing is very slow and I make lots of typos. Using dictation is much faster, but subject to other problems. In some cases the dictation program does not fully understand what I'm talking about. So bear with me.
First of all, what you are trying to do and want to do is within a reasonable possibility. However, the amount of effort involved may be more than what you need at this point. What I mean to say is that there may be another solution that would serve your objectives without taking up so much of your time and attention and also the risk of possibly doing harm to your operating system.
I think in about the OS 10 system you have. That is a valuable asset and you would not want to do anything to damage it or lose your license. I assume that you do have a license for it and I will not ask anymore questions about that concern. The operating system made by Apple is a very important tool and it will serve you well if you show it due respect. Do not try to tamper with it or modify. It was not built for that kind of thing.
At this point the best recommendation I can make for you is to acquire another notebook computer that you can use just for your DOS experiments. For MS-DOS almost anything will do, even very, very old notebooks run MS-DOS very well. So I think the best use of your personal resources would be to invest in a cheap notebook that can run MS-DOS. That way you a lot have to do any kind of experimentation with the machine that has the Apple operating system on it.
However, if you really insist on having just one computer that runs all your operating systems there are ways of doing that. But I am very reluctant to give you that information without first warning you that there is great risk involved in trying to make the system do something that it was not designed for.
I'm going to give you time to respond to this and I am going to look over your response more carefully to see if I can better understand what your objectives are. I get the impression you are a student and you have limited resources and limited experience with them do it yourself computer hacking. I am a very, very old computer hacker and I know how to do the kind of things you want to do and I have enough common sense to avoid it whenever I can.
Please provide some more details about exactly what portable computer you now have. In particular, information about the firmware or the BIOS is important.
I will be back in two hours or less. :)
MIRKOSOFT:
Thank you for very serious reply and warnings.
So, what about all and why:
My main modern computer runs Windows 10 Pro x64 incl. NTVDMx64.
There I'm programming projects for own modern applications. Later want to extend my field of competence to OSX and Linux platforms.
My hobby is retrocomputing and I know also programming software for 16-bit DOS and 16-bit Windows.
Notebook is very old HP Compaq Presario N1000v.
There have installed OSX86 10.4 Tiger, Windows XP SP3 x86 and MS-DOS 7.10 on single disk.
Reason for selection OSX 10.4 is that this system is last which support UniBin platform.
Windows XP I'm using for tools which running not on Windows 3.11 and also on NTVDMx64
MS-DOS has two purposes:
1. Programming applications for DOS and for tools from DOS era
2. Some software for my hobby - Commodore 8/16-bit computers is written only for DOS and also software which allows Commodore computer to read/write whole PC system (HDD, CD/DVD, floppy) requires DOS or at least Windows 98.
What works:
1. OSX86 works and boots directly from harddisk
2. Windows XP works and boots from floppy
3. MS-DOS works and boots from floppy
So, why NTDLR? To NTLDR is possible add MS-DOS item and Linux too - so reason is only for single this - boot comfort - not diskette exchange.
What I don't know:
Install Linux bootloader to 1st Linux partition
What failed:
After Linux installation it rewrites my MBR and OSX item in boot menu exist, but after choose it only reboots computer.
The same it makes with DOS.
When I tried to remove Linux MBR occupation it was never success - it loks like impossible to do it, so Linux is not yet installed.
What I can and makes me not problem:
I have whole disk backuped by Raw Copy tool, can install first OSes separately on for example 16GB CF card and copy them into my own order to destination disk.
This way I created current disk:
1. created MacOS partition table
2. installed MS-DOS 7.10 without making it active to FAT32 partition
3. installed XP to CF card to FAT32 partition and copied partition to disk
4. installed OSX86 directly to disk to HFS+ partition
5. created boot floppy of XP and DOS, but separate floppies, what enabled using both too
To Linux - it is Linux Mint based Commodore OS Vision 1.3 x86.
So, don't worry about any crash or failure, I want to do for it all - risk is sometimes anything good and we all can learn also on our failures.
So, my Qs are only two:
1. how to get bootsect.dos without affecting OSX86 bootloader?
2. how to install Linux bootloader to 1st Linux partition instead of MBR?
No problem with reinstalling, data corrupt or loosing - maybe I learn even more than I expected.
Thank you in advance.
Miro
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