MBR

  • dsantamassino12
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Post 3+ Months Ago

How can i make a copy of my MBR (Master Boot Record)? I prefer the easiest way. Thanks
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  • UNFLUX
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i'm not 100% sure you can. anyone else?
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Post 3+ Months Ago

Yeah I am not sure on this one either. There might be some tool out there, but I have never heard of it. Any particular reason you want to copy this?
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yeah, What is one day i accedientally over ride my MBR and i don't how to reconfigure it at all. Un like if i did do that. My Uncle knows how to do it with a copy. The only thing i think he said but i'm not sure. I would have to get a hex editior. I think i would have to highlight the first 1024 cylinders or something like that. I do not know how to read hex notation.
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Post 3+ Months Ago

there are programs out there that will make a back up copy of your MBR but as i try to think i cant recall what software does it... anyone else know ???
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Post 3+ Months Ago

So far there were three mods that could not answer that for me. I really don't care if your mod or not. I'm asking any of your guys out there. Do you know any programs that would copy my MBR for me?? Thanks.
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Post 3+ Months Ago

You do know about http://www.google.com search, right ?

it's a search engine where you can type keywords into and get relative information back.

also, http://www.askjeeves.com

there you can ask questions and get directed to answers.

have you even tried ?

it's so easy to goto any board and post a question, then get frusterated
over the fact that noone has the correct or any answer for you.

when you are sitting in front of your computer,
you are in fact sitting at *the* largest library available to you.
providing you know how to use a search engine, ofcourse!

I'm not directing this in any bad way, just I would love to see someone
try a search engine once and a while to gain further knowledge about
any given subject in question.

We're all here to help oneanother ... but my comment would be try a search engine
if you are not getting any answers given here.

Look:

http://www.google.ca/search?hl=en&newwi ... gle+Search


Results: 12,700.   Search took 0.22 seconds


or .. perhaps this is something you could use;

http://web.ask.com/web?q=copying+Master ... rc=1&ste=0





I'll try being nicer, if you try being smarter!  ( j/k )
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Post 3+ Months Ago

Amen brotha!

but didn't you know, we at OZZU are supposed to be *all-knowing.* :roll:
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Post 3+ Months Ago

Q. How can I backup/restore my Master Boot Record?

A. A. The Windows NT Resource kit supplies a utility DISKSAVE.EXE which enables a binary image of the Master Boot Record (MBR) or Boot Sector to be saved.

DISKSAVE has to be run from DOS and so you will need to create a bootable DOS disk and copy DISKSAVE.EXE to the disk. To create a DOS bootable disk just use the command

C:\> format a: /s

from a DOS machine (do not do it from a Windows NT command session).

Once you boot with the disk you will have a number of options:

F2 - Backup the Master Boot Record - This function will prompt for a path and filename to save the MBR image to. The path and filename are limited to 64 characters. The resulting file will be a binary image of the sector and will be 512 bytes in size. The MBR is always located at Cylinder 0, Side 0, Sector 1 of the boot disk.

F3 - Restore Master Boot Record - This function will prompt for a path and filename for the previously save Master Boot Record file. The only error checking is for the file size (must be 512 bytes). Copying and incorrect file to the MBR will permanently destroy the partition table information. In addition, the machine will not boot without a valid MBR. The Path/filename is limited to 64 characters.

F4 - Backup the Boot Sector - This function will prompt for a path and filename to save the Boot Sector image to. The path and filename are limited to 64 characters. The resulting file will be a binary image of the sector and will be 512 bytes in size. The function opens the partition table, searches for an active partition, then jumps to the starting location of that partition. The sector at that location is then saved under the filename the user entered. There are no checks to determine if the sector is a valid boot sector.

F5 - Restore Boot Sector - This function will prompt for a path and filename for the previously save Boot Sector file. The only error checking is for the file size (must be 512 bytes). Copying and incorrect file to the Boot Sector will permanently destroy Boot Sector information. In addition, the machine will not boot without a valid Boot Sector. The Path/filename is limited to 64 characters.

F6 - Disable FT on the Boot Drive - This function may be useful when Windows NT will not boot from a mirrored system drive. The function looks for the bootable (marked active) partition. It then checks to see if the SystemType byte has the high bit set. Windows NT sets the high bit of the SystemType byte if the partition is a member of a Fault Tolerant set. Disabling this bit has the same effect as breaking the mirror. There is no provision for re-enabling the bit once it has be disabled.




Hey guys. I typed what they told me too. I tryed a couple of times. I was using MS-DOS 6.22 Operating System. At the command prompt. I typed this. C:\>format a: /s. I get a message that says it was invalid. What could be wrong?? How well do you guys know your way around DOS??
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Post 3+ Months Ago

I believe its case sensitive and needs to be:

C:\> format a: /S

notice the /s is actually /S
  • dsantamassino12
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Post 3+ Months Ago

nope i get this message. Invalid drive specification
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Post 3+ Months Ago

Ok, well then type;

format c: -u

and when it asks, are you sure, hit 'Y'


that should at least fix *our* problems for a while!


just kidding, please don't do that ...

< grins evily >

looks like your a: drive is not recognized in DOS mode.
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Post 3+ Months Ago

Is there a way that i can get my a: drive to regonize in DOS? Do i have to switch any directories? I don't know how to switch directories anyway.
  • UNFLUX
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Post 3+ Months Ago

change directory = cd <dir name>

change directory backwards = cd..
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Post 3+ Months Ago

I don't understand what Unflux is trying to say about changeing directories. I really only know very least DOS commands. I have no clue on how to change a directory so my a: drive can regonize in DOS. Can someone explain that to me a little better? I don't understand what i would put in at the DOS command so my a: drive can recognize. Thanks.
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Post 3+ Months Ago

ok this is what i typed and this is the message i got. I typed a=cd. and this is the message i got. 'a' is not recognized as an internal or external command, operable or batch file. I did that with the Command prompt in Windows XP this time not MS-DOS 6.22
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Post 3+ Months Ago

go to start, and click RUN. type cmd. when the dos window opens,
these commands will allow you to change directories.

to change directory, type "cd <dir name>" (no quotes) [ex. cd mydocs]
to change directory back to the previous on, type "cd.." (no quotes)

This is what you asked, so I'm telling you. Simple directions.
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Post 3+ Months Ago

If i change directories. Will my A: drive recognize in DOS? If you go back and read the instruction what i posted on how to make a copy of MBR. My A: drive is not recognize in DOS mode. I need to make the DOS bootable disk for my MBR. So like this. C:\> format a: /S. I get Invalid drive specification. The question is. If i change directories, will my A: drive recognize?
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Post 3+ Months Ago

I see. I misunderstood. Sorry.

The fact taht your system is not recognizing your a: is not effected by
changing directories. Although, I'm curious. in DOS, type this: a: and hit
enter. Does it show you an A: prompt?
  • dsantamassino12
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Post 3+ Months Ago

yes it does show me A:\>
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Post 3+ Months Ago

if I'm not mistaken, you have to be on a: to format a:. try it anyway...

type out A:\> format a: /S

see what that does.
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Post 3+ Months Ago

'A\' is not recognized as an internal or external command, operable program or batch file. That what it says when i use cmd but when i use MS-DOS 6.22. It most likely going to say invalid drive. It going to say the same for C:\> format a: /S and A:\> format a: /S
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Post 3+ Months Ago

Does anyone know why i was getting that message? Please reply back here. Thanks.
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Post 3+ Months Ago

Don't type "A:\>"

That is just the a prompt. To get to "A prompt" type in:

a:

then press enter. Then type out what unflux said leaving out the "A:\>" as thats just what you will see on your screen. If you see C:\> that just means you are at "C prompt"
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Post 3+ Months Ago

ok, I went format a: /S at the C prompt and i got this. Invalid parameter /S. Why is it invalid?
  • Steen
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Post 3+ Months Ago

Do you still have the box your computer came in ?
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Post 3+ Months Ago


http://www.vfrazee.com/ms-dos/6.22/help/index.htm

http://www.ahuka.com/dos/index.html



either that or pick up the book called,

DOS for Dummies


it's a very handy book and covers all the basics you would need ...

Seriously !
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dsantamassino12 wrote:
ok, I went format a: /S at the C prompt and i got this. Invalid parameter /S. Why is it invalid?


I noticed that the /S parameter only works on anything non Windows XP. It might not work for Windows 2000 either. In the newest versions of windows I do not think the /S parameter is valid anymore. I know it works in Windows 98.
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ok this what i did and i know it's right. I put in the Windows98 startup disk after it was done loading. It came up to the A:\>. I change over to C:\> by typing c:. I did this both ways after i got the message. I typed in the C:\> prompt. format a: /s and format a: /S. I got this message.

Insert new disketter for drive A: and press ENTER when ready...

Checking existing disk format.
verifying 1.44M
Not ready
format terminated
format another (Y/N)?

What wrong with my format? When i format it in windows without the /s or /S. My format was complete
  • UNFLUX
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Post 3+ Months Ago

Bigwebmaster wrote:
I noticed that the /S parameter only works on anything non Windows XP. It might not work for Windows 2000 either. In the newest versions of windows I do not think the /S parameter is valid anymore. I know it works in Windows 98.

he already answered this question for you.
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