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Unrecognized disk label on my external HD

 
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Old 04-05-2014
Unrecognized disk label on my external HD
Hi everyone,
I have an external hard drive and I accidentally deleted the partition table.
Can I restore my files?
If I try to run the f-disk command this is what it says
Code:
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x1549f232

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *   313845760   621045759   153600000   83  Linux
/dev/sda2       621045760   625141759     2048000   82  Linux swap / Solaris
/dev/sda3            2048   313845759   156921856    7  HPFS/NTFS/exFAT

Partition table entries are not in disk order

Disk /dev/sdb: 2000.4 GB, 2000396746752 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907024896 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdb doesn't contain a valid partition table

Any ideas?
 
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LEARN ABOUT NETBSD

apmlabel

APMLABEL(8)						    BSD System Manager's Manual 					       APMLABEL(8)

NAME

     apmlabel -- update disk label from Apple Partition Map

SYNOPSIS

     apmlabel [-fqrw] device

DESCRIPTION

     apmlabel is used to update a NetBSD disk label from the Apple Partition Map found on disks that were previously used on Mac OS systems (or
     other APM using systems).

     apmlabel scans the APM contained in the first blocks of the disk and generates additional partition entries for the disk from the entries
     found.  Driver and patches partitions are ignored.

     Each APM entry which does not have an equivalent partition in the disk label (equivalent in having the same size and offset) is added to the
     first free partition slot in the disk label.  A free partition slot is defined as one with an fstype of 'unused' and a size of zero ('0').
     If there are not enough free slots in the disk label, a warning will be issued.

     The raw partition (typically partition c, but d on i386 and some other platforms) is left alone during this process.

     By default, the proposed changed disk label will be displayed and no disk label update will occur.

     Available options:

     -f  Force an update, even if there has been no change.

     -q  Performs operations in a quiet fashion.

     -r  In conjunction with -w, also update the on-disk label.

     -w  Update the in-core label if it has been changed.

SEE ALSO

     disklabel(8), dkctl(8), pdisk(8)

HISTORY

     The apmlabel command appeared in NetBSD 5.0.

BSD
								   May 19, 2007 							       BSD