kpartx - Create device maps from partition tables.

SYNOPSIS

kpartx [-a|-d|-u|-l] [-r] [-p] [-f] [-g] [-s|-n] [-v] wholedisk

DESCRIPTION

This tool, derived from util-linux' partx, reads partition tables on specified device and create device maps over partitions segments detected.
It is called from hotplug upon device maps creation and deletion.

OPTIONS

-a     Add partition mappings.
-d     Delete partition mappings.
-u     Update partition mappings.
-l     List partition mappings that would be added -a.
-r     Read-only partition mappings.
-p     Set device name-partition number delimiter.
-f     Force creation of mappings; overrides 'no_partitions' feature.
-g     Force GUID partition table (GPT).
-s     Sync mode (Default). Don't return until the partitions are created.
-n     Nosync mode. Return before the partitions are created.
-v     Operate verbosely.

EXAMPLE

Mount all the partitions in a disk image

kpartx -av disk.img

This will output lines such as:

add map loop1p1 (254:4): 0 409597 linear 7:1 3

The loop1p1 is the name of a device file under /dev/mapper which you can use to access the partition, for example to fsck it:

fsck /dev/mapper/loop1p1

When you're done, you need to remove the devices:

kpartx -d disk.img