my fat table is lost or corrupt. Need Help!!

[James]

Earlier today I connected my dvd drive to one of the power cables from
my computer while it was still on so I could eject a cd. I thought it
would be safe since the cable comes directly from the power supply.
Anyway, when I connected it I heard my hard drive power down and then
found that the whole computer had frozen. Now I cant access the drive.
The letter shows up in windows (I had to reinstall windows to another
partition) but when I try to access it, it asks if I want to format
it.

I downloaded findpart and here are the results:

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

Findpart, version 4.39 - for Windows 95/98/ME/NT/2000/XP.
Copyright Svend Olaf Mikkelsen, 1999-2004.

OS: Windows 5.1.2600

Disk: 1 Cylinders: 7299 Heads: 255 Sectors: 63 MB: 57255

-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
0 - 0B 63 10185147 4973 0 1 1 633 254 63 B OK
Fdisk F6 sector 21 0 1
Fdisk F6 sector 21 1 1
634 1 0B 63 24515127 11970 634 1 1 2159*254 63 NB OK
634 2 05 24515190 22009050 10746 2160* 0 1 3529*254 63 634 OK
0 - 0B 10185273 24515127 11970 634 1 1 2159 254 63 BU OK
2160 1 0B 63 22008987 10746 2160* 1 1 3529*254 63 R0 OK
2160 2 05 46524240 21703815 10597 3530* 0 1 4880*254 63 634 OK
0 - 0B 34700463 22008987 10746 2160 1 1 3529 254 63 B OK
3530 1 0B 63 21703752 10597 3530* 1 1 4880*254 63 R0 OK
3530 2 05 68228055 23888655 11664 4881* 0 1 6367*254 63 634 OK
0 - 0B 56709513 21703752 10597 3530 1 1 4880 254 63 B OK
4881 1 0B 63 23888592 11664 4881* 1 1 6367*254 63 R0 OK
4881 2 05 92116710 10233405 4996 6368* 0 1 7004*254 63 634 OK
0 - 0B 78413328 23888592 11664 4881 1 1 6367 254 63 B OK
6368 1 83 63 10233342 4996 6368* 1 1 7004*254 63 OK 3 OK
6368 2 05102350115 610470 298 7005* 0 1 7042*254 63 634 OK
7005 1 82 63 610407 298 7005* 1 1 7042*254 63 OK
7005 2 05102960585 4112640 2008 7043* 0 1 7298*254 63 634 OK
7043 1 0B 63 4112577 2008 7043* 1 1 7298*254 63 NB OK
7043+- 0B 0 4112576 2008 7043 1 1 7298 254 62 B OK

-----FAT CHS -Size Cl --Root -Good -Rep. Maybe --Bad YYMMDD DataMB
0 1 33 9928 4 2 9928 0 0 0 040123 3374
634 1 33 Second FAT not found.
2160 1 37 10738 8 2 10738 0 0 0 030512 10423
3530 1 39 10589 8 2 10589 0 0 0 030329 8719
4881 1 37 11654 8 2 11654 0 0 0 000101 5550
7043 1 33 4009 4 2 4009 0 0 0 031206 1811

Partitions according to partition tables on first harddisk:

-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
0 1*0B 63 10185147 4973 0 1 1 633 254 63 OK OK
0 2 0F 10185210107073225 52281 634 0 1 7298*254 63 OK

634 1 0B 63 24515127 11970 634 1 1 2159*254 63 NB OK
634 2 05 24515190 22009050 10746 2160* 0 1 3529*254 63 OK

2160 1 0B 63 22008987 10746 2160* 1 1 3529*254 63 R0 OK
2160 2 05 46524240 21703815 10597 3530* 0 1 4880*254 63 OK

3530 1 0B 63 21703752 10597 3530* 1 1 4880*254 63 R0 OK
3530 2 05 68228055 23888655 11664 4881* 0 1 6367*254 63 OK

4881 1 0B 63 23888592 11664 4881* 1 1 6367*254 63 R0 OK
4881 2 05 92116710 10233405 4996 6368* 0 1 7004*254 63 OK

6368 1 83 63 10233342 4996 6368* 1 1 7004*254 63 OK 3 OK
6368 2 05102350115 610470 298 7005* 0 1 7042*254 63 OK

7005 1 82 63 610407 298 7005* 1 1 7042*254 63 OK
7005 2 05102960585 4112640 2008 7043* 0 1 7298*254 63 OK

7043 1 0B 63 4112577 2008 7043* 1 1 7298*254 63 NB OK


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

The lost partition is the first partition in the logical partition (at
cyl 634).

Anyone know how to fix this?

Thanks

 

[Svend Olaf Mikkelsen]

Findpart, version 4.39 - for Windows 95/98/ME/NT/2000/XP.
Copyright Svend Olaf Mikkelsen, 1999-2004.

OS: Windows 5.1.2600

Disk: 1 Cylinders: 7299 Heads: 255 Sectors: 63 MB: 57255

-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
0 - 0B 63 10185147 4973 0 1 1 633 254 63 B OK
Fdisk F6 sector 21 0 1
Fdisk F6 sector 21 1 1
634 1 0B 63 24515127 11970 634 1 1 2159*254 63 NB OK
634 2 05 24515190 22009050 10746 2160* 0 1 3529*254 63 634 OK
0 - 0B 10185273 24515127 11970 634 1 1 2159 254 63 BU OK
2160 1 0B 63 22008987 10746 2160* 1 1 3529*254 63 R0 OK
2160 2 05 46524240 21703815 10597 3530* 0 1 4880*254 63 634 OK
0 - 0B 34700463 22008987 10746 2160 1 1 3529 254 63 B OK
3530 1 0B 63 21703752 10597 3530* 1 1 4880*254 63 R0 OK
3530 2 05 68228055 23888655 11664 4881* 0 1 6367*254 63 634 OK
0 - 0B 56709513 21703752 10597 3530 1 1 4880 254 63 B OK
4881 1 0B 63 23888592 11664 4881* 1 1 6367*254 63 R0 OK
4881 2 05 92116710 10233405 4996 6368* 0 1 7004*254 63 634 OK
0 - 0B 78413328 23888592 11664 4881 1 1 6367 254 63 B OK
6368 1 83 63 10233342 4996 6368* 1 1 7004*254 63 OK 3 OK
6368 2 05102350115 610470 298 7005* 0 1 7042*254 63 634 OK
7005 1 82 63 610407 298 7005* 1 1 7042*254 63 OK
7005 2 05102960585 4112640 2008 7043* 0 1 7298*254 63 634 OK
7043 1 0B 63 4112577 2008 7043* 1 1 7298*254 63 NB OK
7043+- 0B 0 4112576 2008 7043 1 1 7298 254 62 B OK

-----FAT CHS -Size Cl --Root -Good -Rep. Maybe --Bad YYMMDD DataMB
0 1 33 9928 4 2 9928 0 0 0 040123 3374
634 1 33 Second FAT not found.
2160 1 37 10738 8 2 10738 0 0 0 030512 10423
3530 1 39 10589 8 2 10589 0 0 0 030329 8719
4881 1 37 11654 8 2 11654 0 0 0 000101 5550
7043 1 33 4009 4 2 4009 0 0 0 031206 1811

Partitions according to partition tables on first harddisk:

-PCyl N ID -----Rel -----Num ---MB -Start CHS- --End CHS-- BS CHS
0 1*0B 63 10185147 4973 0 1 1 633 254 63 OK OK
0 2 0F 10185210107073225 52281 634 0 1 7298*254 63 OK

634 1 0B 63 24515127 11970 634 1 1 2159*254 63 NB OK
634 2 05 24515190 22009050 10746 2160* 0 1 3529*254 63 OK

2160 1 0B 63 22008987 10746 2160* 1 1 3529*254 63 R0 OK
2160 2 05 46524240 21703815 10597 3530* 0 1 4880*254 63 OK

3530 1 0B 63 21703752 10597 3530* 1 1 4880*254 63 R0 OK
3530 2 05 68228055 23888655 11664 4881* 0 1 6367*254 63 OK

4881 1 0B 63 23888592 11664 4881* 1 1 6367*254 63 R0 OK
4881 2 05 92116710 10233405 4996 6368* 0 1 7004*254 63 OK

6368 1 83 63 10233342 4996 6368* 1 1 7004*254 63 OK 3 OK
6368 2 05102350115 610470 298 7005* 0 1 7042*254 63 OK

7005 1 82 63 610407 298 7005* 1 1 7042*254 63 OK
7005 2 05102960585 4112640 2008 7043* 0 1 7298*254 63 OK

7043 1 0B 63 4112577 2008 7043* 1 1 7298*254 63 NB OK

For further examination, you can download iam1.bat in

http://inet.uni2.dk/~svolaf/iam1.zip

and run iam1.bat, which contains:

findpart chsdir 1 634 1 1 summary fp1-1.txt backupbootsector
findpart chsdir 1 634 1 1 summary +fp1-1.txt backupbootsector fat1
findpart chsdir 1 634 1 1 summary +fp1-1.txt backupbootsector fat2
findpart finddir 1 634 637 +fp1-1.txt
findpart findbad 1 634 2159 firstlast +fp1-1.txt

Mail me by mail the summary in fp1-1.txt.

The batch file will search for bad sectors in the area of the
partition, so the search will take some time. If you suspect that the
search runs very slow due to bad sectors, you can interrupt the batch
file. No bad sectors however were found in the sectors, which Findpart
did read.

 

[Svend Olaf Mikkelsen]

Earlier today I connected my dvd drive to one of the power cables from
my computer while it was still on so I could eject a cd. I thought it
would be safe since the cable comes directly from the power supply.
Anyway, when I connected it I heard my hard drive power down and then
found that the whole computer had frozen. Now I cant access the drive.
The letter shows up in windows (I had to reinstall windows to another
partition) but when I try to access it, it asks if I want to format
it.

I downloaded findpart and here are the results:

The lost partition is the first partition in the logical partition (at
cyl 634).

Anyone know how to fix this?

Thanks

Reply no. 2.

The partition did not contain bad sectors, and was mainly OK based on
the Findpart Chsdir output with the fat1 and fat2 options:

Chsdir, version FP 4.39.

Disk 1 CHS: 7299/255/63 Location: 634/1/1

Total clusters: 3058412 Cluster KB: 4
Last used cluster: 3058413 Reserved: 32
FAT sectors: 23896 Root cluster: 3
FAT used clusters: 2179385 FAT entries: 138740
Used clusters: 2177529 Entries: 138740
Directories: 11984 Directories MB: 50
Files: 126756 Files MB: 8164
Partition MB: 11970 Free MB: 3433

Used clusters do not match the FAT.
Backup boot sector used.
NB files: 11

The partition was repaired by copying the FAT32 backup bootsector in
CHS 634/1/7 to CHS 634/1/1.

From the output shown, it can be seen that the number of entries in
the directories did match the number of entries in the FAT, and that
there was a close used cluster match between FAT and directories.