kpartx | create device mappings for partitions | Mehr ...
Kpartx can be used to set up device mappings for the partitions of any partitioned block device. It is part of the Linux multipath-tools.
multipath-tools | maintain multipath block device access | Mehr ...
These tools are in charge of maintaining the disk multipath device maps and react to path and map events. . If you install this package you may have to change the way you address block devices. See README.Debian for details.
multipath-tools-boot | Support booting from multipath devices | Mehr ...
This package contains the necessary support for booting from a multipath device: . * copy over multipath.conf and persistent bindings if necessary * load the necessary kernel modules * detect multipath block devices . Don't install this package if you're not booting from a multipath device.