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Partition

Posted on 2000-02-28
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Last Modified: 2011-09-20
Hi from France,

I need you to solve a bizarre problem.
The last year, I have partionned my HD of 1.2 GO in 500 MO and 538 MO.
Today, I need to retrieve my original HD of 1.2 GO.
So, I create a boot disk, I restart my PC, and I execute fdisk.
I delete the 2 logical drive in extended part.
When I want to delete the extended part, fdisk say me:
"Impossible, 2 logical drive in extended part."
When I return in menu "Delete extended part or logical" fdisk say me:
"No logical drive in extended part."
If I want to delete the primary dos part, I get:
"Impossible, there's an extended part with 2 logical drive".

What are you think of it ??

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Question by:Alphomega
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12 Comments
 
LVL 6

Expert Comment

by:1cell
ID: 2565938
debug the MBR to delete all partition information

Prompt    What to Type
-         FCS:200 400 0
-         RAX
AX 0000   0301
-         RBX
BX 0000   0600
-         RCX
CX 0000   0001
-         RDX
DX 0000   0080
-         E100 CD 13
-         P
-         Q

then use fdisk to recreate the partitions.  obviously, any data will be lost.

0
 
LVL 6

Expert Comment

by:1cell
ID: 2565944
wow, that didn't format very well

what you see          what you type
-                     FCS:200 400 0
-                     RAX
AX 0000               0301
-                     RBX
BX 0000               0600
-                     RCX
CX 0000               0001
-                     RDX
DX 0000               0080
-                     E100 CD 13
-                     P
-                     Q

this is all done after rebooting to MS-DOS mode or to a boot disk.
0
 
LVL 6

Expert Comment

by:1cell
ID: 2565946
still not good, let me know if you don't understand the format.
0
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Author Comment

by:Alphomega
ID: 2566193
Oh, I don't undestand very well.

1) Reboot with floppy disk
2) type Debug [return]
3) Write your text
4) ????????

Is that ???
0
 
LVL 6

Accepted Solution

by:
1cell earned 600 total points
ID: 2566224
ok, yes reboot with boot disk and type debug, then hit enter

you will see a "-".  type FCS:200 400 0 and hit enter
you will see a "-", type RAX and hit enter
you will see "AX 0000", type  0301  and hit enter
you will see "- ", type RBX and hit enter
you will see "BX 0000", type 0600 and hit enter
you will see "-", type RCX and hit enter
you will see "CX 0000", type 0001 and hit enter
you will see "-", type RDX and hit enter
you will see "DX 0000", type 0080 and hit enter
you will see "-", type E 100 CD 13 and hit enter
you will see "-", type P and hit enter
you will see "-", type Q and hit enter
0
 

Author Comment

by:Alphomega
ID: 2566426
Oh, I don't undestand very well.

1) Reboot with floppy disk
2) type Debug [return]
3) Write your text
4) ????????

Is that ???
0
 

Author Comment

by:Alphomega
ID: 2566455
Oh, I don't undestand very well.

1) Reboot with floppy disk
2) type Debug [return]
3) Write your text
4) ????????

Is that ???
0
 

Author Comment

by:Alphomega
ID: 2566459
Adjusted points to 150
0
 

Author Comment

by:Alphomega
ID: 2566460
wonderful,

you're a top master.

it's merit 50 points increase

thanks a lot
0
 
LVL 6

Expert Comment

by:1cell
ID: 2566461
did it work?
0
 

Author Comment

by:Alphomega
ID: 2566470
really good
0
 
LVL 6

Expert Comment

by:1cell
ID: 2566496
glad I could help!
0

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