kpartx − Create device maps from partition tables
kpartx [−a | -d | -l] [−v] wholedisk
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.
|
−a |
Add partition mappings | ||
|
−r |
Read-only partition mappings | ||
|
−d |
Delete partition mappings | ||
|
−u |
Update partition mappings | ||
|
−l |
List partition mappings that would be added −a | ||
|
−p |
set device name-partition number delimiter | ||
|
−f |
force creation of mappings; overrides ’no_partitions’ feature | ||
|
−g |
force GUID partition table (GPT) | ||
|
−v |
Operate verbosely | ||
|
−s |
Sync mode. Don’t return until the partitions are created |
To mount all the partitions in a raw disk image:
kpartx −av disk.img
This will output lines such as:
loop3p1 : 0 20964762 /dev/loop3 63
The loop3p1 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/loop3p1
When you’re done, you need to remove the devices:
kpartx −d disk.img
multipath(8) multipathd(8) hotplug(8)
This man page was assembled By Patrick Caulfield for the Debian project. From documentation provided by the multipath author Christophe Varoqui, <christophe.varoqui@opensvc.com> and others.