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Old May 20th, 2008, 02:11 AM   #1
New Neighbour
Join Date: May 2008
Posts: 2
Missing Partitions

I'm so desperate for my hard disk. I have recently lost the partition table on a 300GB Samsung Firewire drive which contains my works. I would like to try to recover the data from this drive, but I can find no (command-line or otherwise) to do this. I have got 5 Journaled HFS+ partitions in my external hard disk.

Before this problem exist; I selected the fourth partition which capacity is 56GB, and choose 'Erase' with as a disk type 'MS-DOS File System' with Mac OS 10.4.11. But Disk Utility failed in 3 seconds, and gives an error. Then all my 5 HFS+ (Journaled) partitions stopped mounting and is not even recognized by Disk Utility which says no partition map found, and drive is unformatted. And isn't even recognized in Disk Utility which shows only disk name.

I think my apple partition map table corrupted by Disk Utility. All my data still in hard disk, but I don't know how can I mount them again. Disk Utility's verify and repairs buttons doesn't appear for Samsung HDD in Tiger & Leopard. I used some applications for repair my hard disk and partitions. But all of them are failed. Desperately seeking a way to repair or recreate corrupted Apple partition map.

Please, could you help me for mounting my 5 partition in my hard disk. How can I have got my all data again?


I used these apps;
Data Rescue II 1.2 gives some part of hard disk as a corrupted files with correct file and folder names under Unknown named folder. All of them is a trash.

FileSalvage 6.1.5 scans disk for 38 hours then crashed after started "File Name Rebuilder". When I checked some of files, like "50647.qxd", I see it's working. I've got 198.892 files which 300GB of meaningless lots of files without any file or folder names.

TestDisk 6.9 CGSecurity - This can't detect my partitions names which only found three partitions with correct size. Next 4 and 5 partitions have got wrong size. If I can't find any other valuable solution, I'll try as a last solutions from this web address; Broes » Blog Archive » Restore an Apple Partition Map

VirtualLab Client also found all my five partitions. I bought quota from binarybiz, but recovered files are corrupted.

Terminal - I used "pdisk -i" to print the "Partition maps", but given "No valid block on dev/rdisk1/

StellarPhoenix 2.3 found all my missing five partitions. But it's trial application.

Boomerang Data Recovery 1.1.6 found some of my missing partitions. However it's trial.

These applications do not repair / see / detect my hard disk;
Drive Genius 2.0.2
SpeedTools™ Utilities 2.8
DiskWarrior 4.1
DiskStudio 1.6.1
MacForensicsLab 2.5.1
TechTool Pro 4.6.1
VolumeWorks 1.5
iDefrag 1.6.5
iPartition 3.0.1
Carbon Copy Cloner 3.1
Clone X 3.1
CopyCatX 4
Disk Utility tiger or leopard
Drive 10

Disk Utility gives this information for my Samsung Hard Disk;

Name : Initio

Type : Disk

Partition Map Scheme : Unformatted

Disk Identifier : disk1

Media Name : Initio HD300LD
Media Type : Generic

Connection Bus : FireWire

Connection ID : 4521213288251392

Device Tree : fw/[email protected]/[email protected]/@0:0

Writable : Yes

Ejectable : Yes

Mac OS 9 Drivers Installed : No

Location : External

Total Capacity : 279,5 GB (300.069.052.416 Bytes)

S.M.A.R.T. Status : Not Supported

Disk Number : 1

Partition Number : 0

5 Missing Partition Table inside this hard disk:



Rev.A, LBA 586, 072.368 300.0GB T133

DiskTracker list of Samsung partition names, before missing
Disk Utility shows only disk name as 279.5 GB Initio. And there isn't
any partition under disk. All of my 5 partitions unmounted which names
are "Samsung1, Samsung2, Samsung3, Samsung4, Samsung5". You can see
their names in my last DiskTracker scan. And disk name was Samsung,
but now it's change to Initio because of this accident.

Mac OS X 10.4.11, Build 8S165

Mac OS X 10.5.2, Build 9C31

eMac 700 MHz, PPC G4, 768mb sdram, 200 GB ATA WD HDD HFS+, 500GB FW My Book HFS+, 300GB FW Seagate HFS+, 300GB FW Samsung HFS+.

Last edited by powerscape; Jun 10th, 2008 at 11:08 PM.
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Old Jul 14th, 2008, 11:51 AM   #2
New Neighbour
Join Date: Jul 2008
Posts: 1
Post Corrupt Partition Table

I am having the identical problem! I too am seeing the entire drive within the Apple Disk Uitility but cannot find the four partitions located on the drive. None of the partitions will mount.

Did you ever find a solution for restoring what must be a corrupt partition table?
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Old Jul 15th, 2008, 01:26 AM   #3
Posts: n/a
If you have access to a windows box (or a running version of windows on that box) you might try running this command:

fdisk /mbr

It shouldn't cause any (further) damaged if it doesn't work -- but in theory it might clear out anything that FAT tried to do with the partition table .. and it just might get your drive back to a normal state. Have seen this happen in the past ... but it's just a shot in the dark.
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Old Aug 19th, 2009, 04:37 PM   #4
New Neighbour
Join Date: May 2008
Posts: 2
Missing Partitions Problem Solved

I forgot to mention that how I solved my problem in 2008. After formatting process, my partition map is gone. So, I need a convenient data recovery application for my problem. There're lots of recovery apps for macintosh. For example; Data Rescue II, MacForensicsLab, OfficeSalvage, FileSalvage, StellarPhoenix, Boomerang Data Recovery, VirtualLab Client, RescuePRO, DiskWarrior 4.1... But none of them is not usefull for my problem. I need an application that can deal with NTFS, and HFS+ partitions. So, R-STUDIO Network Edition have got all this features with very large format detection capability. File systems supported: FAT (FAT12, FAT16, FAT32), NTFS, NTFS5 (created or updated by Windows 2000/2003/XP/Vista), HFS/HFS+ (Macintosh), Little and Big Endian variants of UFS1/UFS2 (FreeBSD/OpenBSD/NetBSD/Solaris) and Ext2FS/Ext3FS (Linux). R-Studio is powerful and cost-effective data recovery software which recovers files from HFS/HFS+ (Macintosh), FAT/NTFS (Windows), UFS1/UFS2 (FreeBSD/OpenBSD/NetBSD/Solaris) and Ext2FS/Ext3FS (Linux) partitions. It also recovers data on disks, even if their partitions are formatted, damaged or deleted.

You need;
1 PC, R-STUDIO Network Edition 4.5, and MacDrive 7 application,
1 external hard drive enclosure for corrupted drive,
1 another external hard drive enclosure for recovery drive.

• I installed R-STUDIO Network Edition 4.5 and MacDrive 7 in my Dell Notebook.
• I plugged my corrupted drive to the PC.
• Then I plugged the other HFS+ formatted external drive to the PC.
• 300 GB corrupted drive scanned completely 4 hours by R-STUDIO.
• This point you need to learn how to use R-Studio. I selected my missing four partitions exactly. After file list open, I marked my missing folders. Next, recovery progress...
• That's all. Indeed, all my files in my good drive now.
• Later, unmount my good drive from PC.

If you do not want to use this easy data recovery method, second way is rewrite your partition map by yourself with TestDisk. But you should use this solution is your last chance. Because, you might screw your partition map with wrong partition and sector size info while rewriting new partition map. You must have got exact partition map without any error. However do not forget to clone your hard disk to any other hdd for your insurance. The TestDisk was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally deleting a Partition Table). It will also find accidentally deleted partitions (either Apple Partitions, the newer EFI partitions and Windows MBR Partitons) and provide the necessary information for you to restore them using the Apple pdisk command (for Apple Partitions) or the gpt command for (for EFI partitions)

I wish best luck for you.
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