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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Post 3+ Months Ago

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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Post 3+ Months Ago

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
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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.
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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?
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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?
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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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Post 3+ Months Ago

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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Post 3+ Months Ago

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
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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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Post 3+ Months Ago

ok, I finally got it. It formatted the way i need to do it. That was the first step. Can someone help me what would i do next to make a copy of my MBR? Thanks.
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Post 3+ Months Ago

sure, why not, it only took you three days to format a floppy!

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
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Post 3+ Months Ago

I read the instructions on how to do it. They said when i put the floppy disk in and restart my computer. I will get a number of options. I do not get any options.
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Post 3+ Months Ago

Grrrrr,
listen you need to 'sys' that floppy so you can boot from it !

this is often done by being at the C:\ prompt and typing; sys a:

if I'm not mistaking,
I do not do this every day and it's been a while since I had any involvement with DOS stuff.

then from what I can see they recommend, you copy
DISKSAVE.EXE which enables a binary image of the 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 "format a: /s" from a DOS or Win9x machine.

Once you boot with the disk you will have a number of options:
F2 - Backup the Master Boot Record - prompts for a path and filename to save the MBR binary image.

F3 - Restore Master Boot Record

F4 - Backup the Boot Sector - prompts for a path and filename to save the Boot Sector.

F5 - Restore Boot Sector



don't know what to tell ya, i don't usually spend days on thinking about Boot Records.


if you did not do: "format a: /s"

but only managed to do: "format a:"
then I can only bet your floppy is not bootable.

try going back into FULL DOS mode and when on the C: drive

type: sys a:

I believe that will make a bootable floppy for you.

shoot me if I'm wrong ....


then reboot using that floppy,
then try the above where it mentions you should have some F-Key functions.

I searched my system and I can't find any DISKSAVE.EXE

so I have no idea what gives.

best of luck ...

if not - call MicroSoft head office.
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Post 3+ Months Ago

Steen wrote:
best of luck ...

if not - call MicroSoft head office.


Haha
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Post 3+ Months Ago

I really think he should stop spending all this time on thinking about MBR's and go out and get a girlfriend instead.

- just realized also that DISKSAVE.EXE is for NT only.

see:

http://www.windows2000faq.com/Articles/ ... leID=13754
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Post 3+ Months Ago

Steen wrote:
I really think he should stop spending all this time on thinking about MBR's and go out and get a girlfriend instead.


I don't know man, for some reason I think he would have alot of questions for his girlfriend too :) sorry couldn't resist haha.
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Post 3+ Months Ago

Well man. This did not work. I tryed sys a: and then format a: /s. I still get no options when i restart the computer with the floppy in place. Hey i can resist on this because i don't have to go far for a girlfriend. I have college girls that live next to me. Just think. On saturday i was sitting on the porch with them. If you guys want to know more please PM or i PM you guys.
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Post 3+ Months Ago

look I almost hit 'Next Thread' instead of 'Reply'
I wonder why ...

ok, the reason that you do not get the options is because
right now you only have a bootable disk by the sounds of it.

which means it will boot to an A:\ prompt as it should.

if you sys'd that floppy properly, you should have some system utilities on it ... but that's not what you are after.

reason there is no option for you to play with as in the F-Key as specified in some of the text we've been reading about is because,
the DISKCOPY.EXE was to be copied to the floppy,
however, I afterwards corrected myself explaining that's only to be had from an NT workstation OS.

you need a utilily on that floppy now in order to obtain
some options to manage your Boot Record.

Honestly, I'm trying to find the answer for you on Google
but i'm mostly running into places that promote disk utility programs
which require purchasing for usage and somehow that strikes me
as something we should not even bother to suggest to you.

I can only assume, this is not an easy task thus why I'm mostly
only finding disk utility programs to do this.

guess, others have tried before you and ended up writing appz for it instead.

there is something about Fdisk /MBR
but i would not try that as it's only for the MBR on the current drive,
and will update it or correct it on the C:\

mentions that you do not get an option to choose the disk to set the MBR for.

I'll do some more checking for you, however -
YOU ARE DRIVING ME NUTS WITH YOUR MBR !!!!!!!

Q - do you not have disk utilities like: Partition Majic or something ?
Q - what system OS are you trying to make a backup for the MBR for ?

< pulls hair from head >
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Post 3+ Months Ago

Honestly, I have a gut feeling we are going to get you to the part
were we have you backing up your MBR to that floppy and then,
we are going to have to deal with you asking,
why it says: not enough space on A:\

something tells me an image of MBR isn't going to fit on a 1.44 floppy.

Seriously !

Someone help me here - PLEASE !!!!!!!!!!!
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Post 3+ Months Ago

Couldn't i put the image on a CD? or does it have to go on a floppy?
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Post 3+ Months Ago

from my knowledge, you can't burn a cd from DOS.
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Post 3+ Months Ago

Then, What should i do to fit a back up of the MBR on a 1.44 floppy?
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Post 3+ Months Ago

Wait ... I have to go get a f*cking stiff drink now !

we don't know what the size of it will be just yet,
let's get you backup up your MBR first,
then we'll deal with where you fit it.

btw - you sure them collage girls on the porch aren't interested in your bootable floppy ?

tell them it took you three days to make it and they may just be impressed and come back to your room.

then if I was you, I'd be talking them into backing up your MBR for ya ...

j/k

< grins evilly while pulling his hair >
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Post 3+ Months Ago

ok... Are you going to help me back up the MBR now?
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Post 3+ Months Ago

stop complicating your life, and just use this product at the top of the list on this link.

http://www.peachseed.com/search.html?so ... up%20Tools
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Post 3+ Months Ago

There was an error reading the physical sector. It told me to hit Ctrl+B to backup the MBR. An error reading the sector.
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Post 3+ Months Ago

of course there was...
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Post 3+ Months Ago

He's doing it on purpose !

... playing us at this point.
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Post 3+ Months Ago

Why would there be an error??
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Post 3+ Months Ago

because YOU did it.... i dont know of any other reason that this seemingly simple post would go to 4 pages long...
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Post 3+ Months Ago

i need some sleep... your stressin' me out sir...
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Post 3+ Months Ago

actually in all seriousness, check your bios and make sure there isnt a boot sector protection on the there that would cause the error
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Post 3+ Months Ago

I did not do it.
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Post 3+ Months Ago

There was nothing about boot sectors in my BIOS. and the answer is no. I did not make the error appear out of no where. I'm not magic to make an error... sorry it wasn't me.
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Post 3+ Months Ago

he just means that it seems you are having probs more so than someone
else might. Or at least, you're not really trying and hoping someone
will just give you the answer.

IMO, you should be going out to google or wherever else and searching
for the help you need. Obviously we are not up to par on helping you
the way you need.

This has gone on long enough, and it's not even helpful. :roll:
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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

I don't think i have the box. There is no way that are going to take back my computer. I will tell you why. The connector on my motherboard where my monitor plugs in. It broke off a while ago. So, I had to get a PCI Video Card. So i can plug my monitor in the video card.
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Post 3+ Months Ago

Image
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Post 3+ Months Ago

Dude, don't worry about backing up the sutpid MBR! It's pointless and stupid... If your computer ever screws up, just format it again. I mean who the hell backs up their MBR these days.

Use Norton Disk Edit, it does the job fine :D
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Post 3+ Months Ago

Thank you, Brandon,
and welcome to the OZZU Board ...
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Post 3+ Months Ago

Hey Gents. The MBR on a FAT/FAT32 is 512 bytes. Should fit on a floppy easily.
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Post 3+ Months Ago

amen! but don't forget beer ;)
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Post 3+ Months Ago

Hi folks,

First, if ur running XP then do a bootable floppy by going in any XP machine inserting a Floppy in and then right click properties format then tick the create MS-DOS bootable disk . click ok.

Now, as previously said the MBR is only 512 long and casn be saved on a floppy.
Notice that the partition are stored from bit 447 until 512 (0 til 446 being allocated for the OS to be able to boot).

Now, one do not need to save his mbr unless he is gonna install an other os on it (such as Linux) as this can be restored using fdisk/mbr.

Then my point. (which I'm currently using*...)

If you really are scared to mess up with your mbr and you are running XP then what u can do is:
Copy the boot.ini, ntdetect.com and ntldr to a standard blank floppy disk (NOT A BOOTABLE FLOPPY this time).

If you ever mess up with ur mbr then just put that floppy in and press power on your PC you'll be sorted.

Thierry

PS: *this is because I meessed up with my mbr and that I have now one floppy to boot to linux RH 9 and another one for XP!!!

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