Recovering a lost partition - help needed

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

I've lost access to a FAT32 partition.

Following situation:

Samsung SpinPoint SP1614N (160 GB)
Partitioned:
* primary with about 15 GB (C:)
* an extended with one logical drive -> rest of the disc space

OS: Win98SE

I do have access to the primary partition (C:) but have lost my
extended one.

Things I've tried so far:

* PartitionMagic:
finds the extended but marks the logical partition as "Unallocated".
The operation "undelete" doesn't fix the problem.

* DOS Active Partition Recovery 2.1:
basically the same as for PartitionMagic, marks "Unallocated" but
can't help.

* Norton Disk Doctor:
no help either. Scans the disc but can't restore anything.

* findpart:
I've read some threads where this tool was recommended so I tried it.
"findpart all fp.txt" lead to the result that is inserted below.


Is there a way to restore the partition or the lost data?
Can somebody tell me how to interpret the result of findpart?

Any help would be appreciated :-)

Thanks
Kai


Findpart, version 4.43 - for Windows 95/98/ME/NT/2000/XP.
Copyright Svend Olaf Mikkelsen, 1999-2004.

OS: Windows 4.10.2222 All

Disk: 1 Cylinders: 19457 Heads: 255 Sectors: 63 MB: 152625

--PCyl N ID -----Rel -----Num ---MB --Start CHS- ---End CHS-- BS CHS
0 - 0C 63 31471272 15366 0 1 1 1958 254 63 B OK
Fdisk F6 sector 1981 0 1
Fdisk F6 sector 1981 1 1
Fdisk F6 sector 1982 0 1
Fdisk F6 sector 1983 0 1
Fdisk F6 sector 1983 1 1
Fdisk F6 sector 18429 0 1
Fdisk F6 sector 18429 1 1

------FAT CHS -Size Cl --Root -Good -Rep. Maybe --Bad YY-MM-DD DataMB
0 1 33 15360 8 2 15360 0 0 0 04-06-03 7354

Partitions according to partition tables on first harddisk:

--PCyl N ID -----Rel -----Num ---MB --Start CHS- ---End CHS-- BS CHS
0 1*0C 63 31471272 15366 0 1 1 1958 254 63 OK OK
0 2 0F 31471335281105370137258 1959* 0 1 19456*254 63 OK

No signature CHS: 1959 0 1
8 answers Last reply
More about recovering lost partition needed
  1. Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

    Kai Bergmann wrote:
    >
    > I've lost access to a FAT32 partition.
    >
    > Following situation:
    >
    > Samsung SpinPoint SP1614N (160 GB)
    > Partitioned:
    > * primary with about 15 GB (C:)
    > * an extended with one logical drive -> rest of the disc space
    >
    > OS: Win98SE
    >
    > I do have access to the primary partition (C:) but have lost my
    > extended one.

    <cut remainder of message, for brevity>

    Hello, Kai:

    Windows 98SE is limited to a maximum partition size of 127GB, and
    your extended one (145GB) is well above that. Beginning with Windows
    Millennium (which I currently run on my own PC, containing two
    SP1614N's), there's much better support for larger hard disks.

    I think that's your problem, now, but don't know whether there's a
    real solution to it (i.e., data recovery).

    Sorry, I can't be of more help.


    Cordially,
    John Turco <jtur@concentric.net>
  2. Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

    On 23 Jun 2004 14:47:51 -0700, kai-usenet@gmx.at (Kai Bergmann) wrote:

    >I've lost access to a FAT32 partition.
    >
    >Following situation:
    >
    >Samsung SpinPoint SP1614N (160 GB)
    >Partitioned:
    >* primary with about 15 GB (C:)
    >* an extended with one logical drive -> rest of the disc space
    >
    >OS: Win98SE
    >
    >I do have access to the primary partition (C:) but have lost my
    >extended one.
    >
    >Things I've tried so far:
    >
    >* PartitionMagic:
    >finds the extended but marks the logical partition as "Unallocated".
    >The operation "undelete" doesn't fix the problem.
    >
    >* DOS Active Partition Recovery 2.1:
    >basically the same as for PartitionMagic, marks "Unallocated" but
    >can't help.
    >
    >* Norton Disk Doctor:
    >no help either. Scans the disc but can't restore anything.
    >
    >* findpart:
    >I've read some threads where this tool was recommended so I tried it.
    >"findpart all fp.txt" lead to the result that is inserted below.
    >
    >
    >Is there a way to restore the partition or the lost data?
    >Can somebody tell me how to interpret the result of findpart?
    >
    >Any help would be appreciated :-)
    >
    >Thanks
    >Kai
    >
    >
    >
    >Findpart, version 4.43 - for Windows 95/98/ME/NT/2000/XP.
    >Copyright Svend Olaf Mikkelsen, 1999-2004.
    >
    >OS: Windows 4.10.2222 All
    >
    >Disk: 1 Cylinders: 19457 Heads: 255 Sectors: 63 MB: 152625
    >
    >--PCyl N ID -----Rel -----Num ---MB --Start CHS- ---End CHS-- BS CHS
    > 0 - 0C 63 31471272 15366 0 1 1 1958 254 63 B OK
    > Fdisk F6 sector 1981 0 1
    > Fdisk F6 sector 1981 1 1
    > Fdisk F6 sector 1982 0 1
    > Fdisk F6 sector 1983 0 1
    > Fdisk F6 sector 1983 1 1
    > Fdisk F6 sector 18429 0 1
    > Fdisk F6 sector 18429 1 1
    >
    >------FAT CHS -Size Cl --Root -Good -Rep. Maybe --Bad YY-MM-DD DataMB
    > 0 1 33 15360 8 2 15360 0 0 0 04-06-03 7354
    >
    >Partitions according to partition tables on first harddisk:
    >
    >--PCyl N ID -----Rel -----Num ---MB --Start CHS- ---End CHS-- BS CHS
    > 0 1*0C 63 31471272 15366 0 1 1 1958 254 63 OK OK
    > 0 2 0F 31471335281105370137258 1959* 0 1 19456*254 63 OK
    >
    > No signature CHS: 1959 0 1

    The default search did not locate traces from the lost FAT32
    partition. I suggest you initially do:

    findpart finddir 1 1958 3000 fp-a.txt

    and

    findpart gb32 1 fp-b.txt

    and mail me the files fp-a.txt and fp-b.bat, since the fp-a.txt file
    may be large.


    Note that there can be a risk that lost data are in the area of the
    primary partition due to 32 GB or 128 GB problems. Ideally the disk
    should be examined from pure DOS, and nothing written to the primary
    partition. If lost data are in the primary partition, or data in the
    primary partition were damaged, it however may be difficult to recover
    the infected files, so the choice could be made to just examine from
    Windows 98.
    --
    Svend Olaf
  3. Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

    On 23 Jun 2004 14:47:51 -0700, kai-usenet@gmx.at (Kai Bergmann) wrote:

    >I've lost access to a FAT32 partition.
    >
    >Following situation:
    >
    >Samsung SpinPoint SP1614N (160 GB)
    >Partitioned:
    >* primary with about 15 GB (C:)
    >* an extended with one logical drive -> rest of the disc space
    >
    >OS: Win98SE
    >
    >I do have access to the primary partition (C:) but have lost my
    >extended one.
    >
    >Things I've tried so far:

    Reply no. 2.

    From mail I have:

    >Finddir, version FP 4.43.
    >Copyright Svend Olaf Mikkelsen, 2004.

    >OS: Windows 4.10.2222
    >
    >Disk: 1 Cylinders: 19457 Heads: 255 Sectors: 63 MB: 152625
    >
    >Start cylinder: 1958 End cylinder: 3000
    >
    >--------- CHS ----- LBA -- Cluster (2) ----- LBA -KB YYMMDD
    > 1979 93 49 31798542 3539 031224
    > 1979 101 57 31799054 1965 70 40 31572174 32 031224
    > 1979 105 61 31799310 1965 70 40 31572174 32 031224

    > 3000 0 1 48195000 searched
    >
    >------FAT CHS ------LBA Confidence Distance Type Sig
    > 2003 92 53 32184043 17 32 NB

    Showing that the FAT expected to be present between CHS 1959/0/1 and
    1965/70/40 is lost.

    It is a FAT32 without FAT recovery problem, meaning that it must be
    attempted to copy files to another disk using recovery programs.


    I have been working on detecting the cause of this, and using a yet
    internal version of the GB32 test program, I have:

    >GB32, version 1.2 Copyright Svend Olaf Mikkelsen, 2001-2004.
    >
    >OS: DOS 7.10 WINDOWS 4.10
    >
    >Disk: 1 Cylinders: 19457 Heads: 255 Sectors: 63 MB: 152625
    >
    >Comparing sector 0 to 999 with an area later on the disk:
    >
    >Distance 4096*255*63: 0 matches.
    >Distance 65536*16*63: 0 matches.
    >Distance 65536*15*63: 0 matches.
    >
    >No known 32 GB problems were observed.
    >
    >The known 128 GB problem may be present.
    >
    >Method 2:
    >
    >The known 128 GB problem was not found.

    In the meantime I have discovered another Windows 98 128 GB problem,
    and I am trying to figure out the exact nature of the problem. When
    ready, I will update the GB32 program to detect the Windows 98 128 GB
    problems I know of.
    --
    Svend Olaf
    http://www.partitionsupport.com/utilities.htm
  4. Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

    > In the meantime I have discovered another Windows 98 128 GB problem,
    > and I am trying to figure out the exact nature of the problem. When
    > ready, I will update the GB32 program to detect the Windows 98 128 GB
    > problems I know of.
    > --
    > Svend Olaf
    > http://www.partitionsupport.com/utilities.htm

    It appears the Intel Application accelerator can be used to make different
    (Windows) OS'es capable of dealing with larger disks (>128 Gb), however make
    sure to use the latest version.

    http://support.intel.com/support/chipsets/iaa/sb/CS-009319.htm

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

    svolaf@inet.uni2.dk (Svend Olaf Mikkelsen) wrote in message news:<40e17e40.52476651@dtext.news.tele.dk>...
    > Showing that the FAT expected to be present between CHS 1959/0/1 and
    > 1965/70/40 is lost.
    >
    > It is a FAT32 without FAT recovery problem, meaning that it must be
    > attempted to copy files to another disk using recovery programs.


    Thanks again for your help.

    I've tried to recover the contents of the partition using a tool
    called "getDataBack" and it was possible to bring back much of the
    data.

    There seems to be problems with fragmented files. Can you recommend a
    tool that I can use to bring the other data back too?



    > I have been working on detecting the cause of this, and using a yet
    > internal version of the GB32 test program, I have:
    >
    > >GB32, version 1.2 Copyright Svend Olaf Mikkelsen, 2001-2004.
    > >
    > >OS: DOS 7.10 WINDOWS 4.10
    > >
    > >Disk: 1 Cylinders: 19457 Heads: 255 Sectors: 63 MB: 152625
    > >
    > >Comparing sector 0 to 999 with an area later on the disk:
    > >
    > >Distance 4096*255*63: 0 matches.
    > >Distance 65536*16*63: 0 matches.
    > >Distance 65536*15*63: 0 matches.
    > >
    > >No known 32 GB problems were observed.
    > >
    > >The known 128 GB problem may be present.
    > >
    > >Method 2:
    > >
    > >The known 128 GB problem was not found.
    >
    > In the meantime I have discovered another Windows 98 128 GB problem,
    > and I am trying to figure out the exact nature of the problem. When
    > ready, I will update the GB32 program to detect the Windows 98 128 GB
    > problems I know of.


    I thought that if i had the problem I would be able to see only 128
    gigs. To that moment when my partition "dissapeared" everything was
    working fine.


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

    I had a bigger problem and when I used so many versions of GetDataBack
    I found that the latest releas 2.31 dated 25-6-2004 is the only
    version that can recover files over 120MB from a formatted drive ..
    all the other versions could not retrive more than 100MB as a single
    file. but could not find a working serial for it.
    you may need to wait for a week from today and some one will post the
    new serial here.
  7. Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

    "W-DoVe" <zagil69@yahoo.com> wrote in message
    news:de4f1859.0406300647.7622e196@posting.google.com...
    > I had a bigger problem and when I used so many versions of GetDataBack
    > I found that the latest releas 2.31 dated 25-6-2004 is the only
    > version that can recover files over 120MB from a formatted drive ..
    > all the other versions could not retrive more than 100MB as a single
    > file. but could not find a working serial for it.
    > you may need to wait for a week from today and some one will post the
    > new serial here.

    This is NOT a group where we're in the habit of posting serials for
    commercial software. So please piss off (pardon the langauge) and keep your
    illegal serials to yourself!

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

    kai-usenet@gmx.at (Kai Bergmann) wrote in message news:<6b49a59f.0406231347.1e4bfeca@posting.google.com>...
    > I've lost access to a FAT32 partition.

    > Is there a way to restore the partition or the lost data?
    > Can somebody tell me how to interpret the result of findpart?

    Try "testdisk"
    <http://www.cgsecurity.org/index.html?testdisk.html>
    Free, command line tool.
    My primary disk had bad sectors and crashed Windows severely, the
    secondary with my data was scrambled too. Testdisk rebuilt the
    partition table and it was all back.
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