Which commands and types of logical volumes are currently supported in LVM 2?
If you are using the stable 2.4 device mapper patch from the lvm2 tarball, all the major functionality you’d expect using lvm1 is supported with the lvm2 tools. (You still need to remove snapshots before upgrading from lvm1 to lvm2) If you are using the version of device mapper in the 2.6 kernel.org kernel series the following commands and LV types are not supported: • pvmove • snapshots The beginnings of support for these features are in the unstable device mapper patches maintained by Joe Thornber.