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Help! Problem with extended Partition Under MS Windows XP

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Anonymous
a b G Storage
February 7, 2005 9:12:39 PM

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

Hi group,

Recently, I've had a problem with my Primary HD. My computer freezed
under windows xp and I was forced to reboot the machine. When It came
alive again, I figured out that two logical partitions of one extended
partition were corrupted. I don't know what part of data on my disk is
bad or corrupted: MBR, Partitions Table, Boot Sector etc...

Windows XP can see the partitions but it not recognizes it's file
system structure (NTSC, FAT2 etc...). It says that the partition is not
formatted and asks if I want to format it now. I answer NO, of course.
But if I boot with a windows Me or Windows 98 boot disk, I can see all
the file structure. All the files are on old DOS format (8.3).

I know all my files are in there, so I'm sure I can recover them. I
just don't know how.

Here's what some application log or report tell me about the partitions
on the disk

/////////////////

Findpart, version 4.63 - for Windows 95/98/ME/NT/2000/XP.


Disk: 1 Cylinders: 7476 Heads: 255 Sectors: 63 MB: 58643

-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
0 - 07 63 30732281 15005 0 1 1 1912 254 62 B OK
0 - 07 63 25607547 12503 0 1 1 1593 254 63 BU OK
0 - 07 25607610 5124735 2502 1594 0 1 1912 254 63 B OK
1912+- 07 63 30732281 15005 1912 254 63 3825 253 61 B OK
0+- 07 63 30732281 15005 0 1 2 1912 254 63 BU OK
1913 1 0B 63 44034102 21501 1913* 1 1 4653*254 63 NB OK
1913 2 05 44034165 45335430 22136 4654* 0 1 7475*254 63 1913 OK
0 - 0B 30732408 44034102 21501 1913 1 1 4653 254 63 BU OK
4654 1 0B 63 45335367 22136 4654* 1 1 7475*254 63 NB OK
0 - 0B 74766573 45335367 22136 4654 1 1 7475 254 63 BU OK

-----FAT CHS -Size Cl --Root -Good -Rep. Maybe --Bad YYMMDD DataMB
1913 1 35 Second FAT not found.
4654 1 33 11064 16# 2#11064 0 0 0 030817 20586

Partitions according to partition tables on first harddisk:

-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
0 1*07 63 30732282 15005 0 1 1 1912*254 63 NB OK
0 3 0F 30732345 89369595 43637 1913* 0 1 7475*254 63 OK

1913 1 0B 63 44034102 21501 1913* 1 1 4653*254 63 NB OK
1913 2 05 44034165 45335430 22136 4654* 0 1 7475*254 63 OK

4654 1 0B 63 45335367 22136 4654* 1 1 7475*254 63 NB OK

////////////////////////////

Partition Information Program
Sep 16 2002 - DOS32 Version
Copyright (c) 1994-2002, PowerQuest Corporation

============================================================================

Disk 0: 7476 Cylinders, 255 Heads, 63 Sectors/Track.

BiosExtensions: 0x2100 Subsets (0x00000005): Access EDD
The BIOS supports INT 13h extensions for this drive.

============================ Partition Tables
==============================

Partition -----Begin---- ------End----- Start Num

Sector # Boot Cyl Head Sect FS Cyl Head Sect Sect
Sects

---------- - ---- ---- ---- ---- -- ---- ---- ---- ----------
----------

0 0 80 0 1 1 07 [1023 254 63] 63
25607547 [Large Drive Placeholders]

0 1 1 1593 254 63
Actual Values

0 1 00 [1023 0 1] 17 [1023 254 63] 25607610
5124735 [Large Drive Placeholders]

1594 0 1 1912 254 63
Actual Values

0 2 00 [1023 0 1] 0F [1023 254 63] 30732345
89369595 [Large Drive Placeholders]

1913 0 1 7475 254 63
Actual Values

30732345 0 00 [1023 1 1] 0B [1023 254 63] 30732408
44034102 [Large Drive Placeholders]

1913 1 1 4653 254 63
Actual Values

30732345 1 00 [1023 0 1] 05 [1023 254 63] 74766510
45335430 [Large Drive Placeholders]

4654 0 1 7475 254 63
Actual Values

74766510 0 00 [1023 1 1] 0B [1023 254 63] 74766573
45335367 [Large Drive Placeholders]

4654 1 1 7475 254 63
Actual Values

BiosExtensions: 0x2100 Subsets (0x00000005): Access EDD
EGeo 0x0000 16383 16 63 120103200 0 512


==================================================================================

Disk 0: 58643.5 Megabytes

============================= Partition Information
==============================

Volume Partition Partition Start
Total

Letter:Label Type Status Size MB Sector # Sector
Sectors

------------- --------------- -------- -------- ---------- - ----------
----------

NTFS Pri,Boot 12503.7 0 0 63
25607547

Hidden NTFS Pri 2502.3 0 1 25607610
5124735

ExtendedX Pri 43637.5 0 2 30732345
89369595

EPBR Log 21501.1 None - 30732345
44034165

FAT32 Log 21501.0 30732345 0 30732408
44034102

EPBR Log 22136.4 30732345 1 74766510
45335430

FAT32 Log 22136.4 74766510 0 74766573
45335367

/////////////////


Please. Any help would much appreciated. Thx.
Anonymous
a b G Storage
February 9, 2005 10:41:29 AM

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

On 7 Feb 2005 18:12:39 -0800, "edguit@r" <etahim@ig.com.br> wrote:

>Hi group,
>
>Recently, I've had a problem with my Primary HD. My computer freezed
>under windows xp and I was forced to reboot the machine. When It came
>alive again, I figured out that two logical partitions of one extended
>partition were corrupted. I don't know what part of data on my disk is
>bad or corrupted: MBR, Partitions Table, Boot Sector etc...
>
>Windows XP can see the partitions but it not recognizes it's file
>system structure (NTSC, FAT2 etc...). It says that the partition is not
>formatted and asks if I want to format it now. I answer NO, of course.
>But if I boot with a windows Me or Windows 98 boot disk, I can see all
>the file structure. All the files are on old DOS format (8.3).
>
>I know all my files are in there, so I'm sure I can recover them. I
>just don't know how.
>
>Here's what some application log or report tell me about the partitions
>on the disk

>Findpart, version 4.63 - for Windows 95/98/ME/NT/2000/XP.
>
>
>Disk: 1 Cylinders: 7476 Heads: 255 Sectors: 63 MB: 58643
>
>-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
> 0 - 07 63 30732281 15005 0 1 1 1912 254 62 B OK
> 0 - 07 63 25607547 12503 0 1 1 1593 254 63 BU OK
> 0 - 07 25607610 5124735 2502 1594 0 1 1912 254 63 B OK
> 1912+- 07 63 30732281 15005 1912 254 63 3825 253 61 B OK
> 0+- 07 63 30732281 15005 0 1 2 1912 254 63 BU OK
> 1913 1 0B 63 44034102 21501 1913* 1 1 4653*254 63 NB OK
> 1913 2 05 44034165 45335430 22136 4654* 0 1 7475*254 63 1913 OK
> 0 - 0B 30732408 44034102 21501 1913 1 1 4653 254 63 BU OK
> 4654 1 0B 63 45335367 22136 4654* 1 1 7475*254 63 NB OK
> 0 - 0B 74766573 45335367 22136 4654 1 1 7475 254 63 BU OK
>
>-----FAT CHS -Size Cl --Root -Good -Rep. Maybe --Bad YYMMDD DataMB
> 1913 1 35 Second FAT not found.
> 4654 1 33 11064 16# 2#11064 0 0 0 030817 20586
>
>Partitions according to partition tables on first harddisk:
>
>-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
> 0 1*07 63 30732282 15005 0 1 1 1912*254 63 NB OK
> 0 3 0F 30732345 89369595 43637 1913* 0 1 7475*254 63 OK
>
> 1913 1 0B 63 44034102 21501 1913* 1 1 4653*254 63 NB OK
> 1913 2 05 44034165 45335430 22136 4654* 0 1 7475*254 63 OK
>
> 4654 1 0B 63 45335367 22136 4654* 1 1 7475*254 63 NB OK

In the Findpart output it can be seen that the boot sectors of the two
logical partitions are damaged. It is not known if the other file
systems structures are OK. If they are, these commands can copy data
to current directory and below:

findpart chsdir 1 1913 1 1 backupbootsector copy

findpart chsdir 1 4654 1 1 backupbootsector copy

You will need access to a partition with room for the files to do
that.
--
Svend Olaf
Anonymous
a b G Storage
February 11, 2005 7:10:52 AM

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

Thanks for yuor reply Svend. Now I can see the problem on boot sector
of logical partitions. I'll try to fix them using DIY Darecovery
DiskPatch.

Thanks one more time.
Related resources
Anonymous
a b G Storage
February 11, 2005 6:52:45 PM

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

"edguit@r" <etahim@ig.com.br> wrote in message news:1108123852.145560.5660@l41g2000cwc.googlegroups.com
> Thanks for yuor reply Svend. Now I can see the problem on boot sector
> of logical partitions. I'll try to fix them using

> DIY Darecovery DiskPatch.

You really know how to insult a guy. ;-)

>
> Thanks one more time.
Anonymous
a b G Storage
March 10, 2005 10:20:36 PM

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

I want to apologize If I insulted you. :-(
Anonymous
a b G Storage
March 14, 2005 10:07:17 PM

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

ok
i know your problem
i suggest you use partition table doctor to repair boot sector
It provides very useful functions: Backup partition table, Restore
partition table, Rebuild partition table, Fixboot.

see more: http://www.ptdd.com
!