Packages and Binaries:
Gpart is a tool which tries to guess the primary partition table of a PC-type disk in case the primary partition table in sector 0 is damaged, incorrect or deleted.
It is also good at finding and listing the types, locations, and sizes of inadvertently-deleted partitions, both primary and logical. It gives you the information you need to manually re-create them (using fdisk, cfdisk, sfdisk, etc.).
The guessed table can also be written to a file or (if you firmly believe the guessed table is entirely correct) directly to a disk device.
Currently supported (guessable) filesystem or partition types:
- BeOS filesystem type.
- BtrFS filesystem type.
- FreeBSD/NetBSD/386BSD disklabel sub-partitioning scheme used on Intel platforms.
- Linux second extended filesystem (Ext2).
- MS-DOS FAT12, FAT16 and FAT32 “filesystems”.
- IBM OS/2 High Performance filesystem.
- Linux LVM and LVM2 physical volumes.
- Linux swap partitions (versions 0 and 1).
- The Minix operating system filesystem type.
- MS Windows NT/2000 filesystem.
- QNX 4.x filesystem.
- The Reiser filesystem (version 3.5.X, X > 11).
- Sun Solaris on Intel platforms uses a sub-partitioning scheme on PC hard disks similar to the BSD disklabels.
- Silicon Graphics journaled filesystem for Linux.
Gpart is useful in recovery actions and forensics investigations.
How to install:
sudo apt install gpart
Guess PC-type hard disk partitions
[email protected]:~# gpart --help gpart: invalid option -- '-' Usage: gpart [options] device Options: [-b <backup MBR>][-C c,h,s][-c][-d][-E][-e][-f][-g][-h][-i] [-K <last sector>][-k <# of sectors>][-L][-l <log file>] [-n <increment>][-q][-s <sector-size>] [-V][-v][-W <device>][-w <module-name,weight>] gpart v0.2.3-dev (c) 1999-2001 Michail Brzitwa <[email protected]>. Guess PC-type hard disk partitions. Options: -b Save a backup of the original MBR to specified file. -C Set c/h/s to be used in the scan. -c Check/compare mode. -d Do not start the guessing loop. -E Do not try to identify extended partition tables. -e Do not skip disk read errors. -f Full scan. -g Do not try to get the disk geometry. -h Show this help. -i Run interactively (ask for confirmation). -K Scan only up to given sector. -k Skip sectors before scan. -L List available modules and their weights, then exit. -l Logfile name. -n Scan increment: number or 's' sector, 'h' head, 'c' cylinder. -q Run quiet (however log file is written if specified). -s Sector size to use (disable sector size probing). -V Show version. -v Verbose mode. Can be given more than once. -W Write guessed primary partition table to given device or file. -w Weight factor of module.
Updated on: 2022-Aug-05