Introduction to LVM2
The LVM2 package is a package that
manages logical partitions. It allows spanning of file systems
across multiple physical disks and disk partitions and provides for
dynamic growing or shrinking of logical partitions.
This package is known to build and work properly using an LFS-7.6
Download (FTP): ftp://sources.redhat.com/pub/lvm2/LVM2.2.02.115.tgz
Download MD5 sum: 450744ce2ffd15c017d04bb314979e00
Download size: 1.5 MB
Estimated disk space required: 27 MB (additional 10 MB to run
the test suite)
Estimated build time: 0.4 SBU (additional 40 SBU to run the
mdadm-3.3.2 (for checks) and xfsprogs-3.2.2 (for
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/lvm2
Enable the following options in the kernel configuration and
recompile the kernel:
There are several other Device Mapper options in the kernel
beyond those listed below. In order to get reasonable results if
running the regression tests, all must be enabled either
internally or as a module.
Device Drivers --->
[*] Multiple devices driver support (RAID and LVM) ---> [CONFIG_MD]
<*/M> Device mapper support [CONFIG_BLK_DEV_DM]
<*/M/ > Crypt target support [CONFIG_DM_CRYPT]
<*/M/ > Snapshot target [CONFIG_DM_SNAPSHOT]
<*/M/ > Mirror target [CONFIG_DM_MIRROR]
Installation of LVM2
Install LVM2 by running the
./configure --prefix=/usr \
The check command must be run as the
root user. Also the tests are known to hang if
at least one partition on a hard drive is not set up as a Linux LVM
partition (type 8e00). To test the results, issue: make check as the
root user. The test timings are very dependent
on the speed of the disk(s), and on the number of enabled kernel
options. It seems that the tests do not run to completion (hang and
time out after five hours) with recent kernels (starting with
Now, as the
switch enables building of the shared application library.
switch enables building of the shared command library. It is
required when building the event daemon.
switch enables installation of pkg-config support files.
switch enables synchronisation with Udev processing.
--enable-dmeventd: This switch enables
building of the Device Mapper
blkdeactivate, dmeventd (optional),
dmsetup, fsadm, lvm, lvmconf, lvmdump, vgimportclone. There are
also numerous symbolic links to lvm that implement specific
libdevmapper.so, liblvm2app.so and
liblvm2cmd.so; optional: libdevmapper-event.so,
/etc/lvm and /lib/device-mapper
utility to deactivate block device.
(optional) is the Device Mapper event daemon.
is a low level logical volume management tool.
is an utility used to resize or check filesystem on a
provides the command-line tools for LVM2. Commands are implemented via
sympolic links to this program to manage physical devices
(pv*), volume groups (vg*) and logical volumes (lv*).
is a script that modifies the locking configuration in
the LVM2 configuration
is a tool used to dump various information concerning
is used to import a duplicated VG (e.g. hardware
contains the Device
Mapper API functions.
Last updated on 2015-01-25 14:34:54 +0000