--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lvm.rst	Mon Feb 22 12:46:36 2016 +0200
@@ -0,0 +1,168 @@
+.. -*- coding: utf-8; -*-
+.. include:: HEADER.rst
+
+=====
+ LVM
+=====
+.. contents::
+   :local:
+
+Debian package
+==============
+::
+
+  $ sudo apt-get install lvm
+
+List partitions
+===============
+::
+
+  $ sudo sfdisk -l
+
+or use gparted(1).
+
+Setup physical volume
+=====================
+::
+
+  $ sudo pvcreate /dev/sdc3
+  Physical volume "/dev/sdc3" successfully created
+
+Setup volume group
+==================
+::
+
+  $ sudo vgcreate vg0 /dev/sdc3
+  Volume group "vg0" successfully created
+
+Show info about volume group
+============================
+::
+
+  $ sudo vgdisplay
+  --- Volume group ---
+  VG Name               vg0
+  System ID
+  Format                lvm2
+  Metadata Areas        1
+  Metadata Sequence No  1
+  VG Access             read/write
+  VG Status             resizable
+  MAX LV                0
+  Cur LV                0
+  Open LV               0
+  Max PV                0
+  Cur PV                1
+  Act PV                1
+  VG Size               77.22 GB
+  PE Size               4.00 MB
+  Total PE              19769
+  Alloc PE / Size       0 / 0
+  Free  PE / Size       19769 / 77.22 GB
+  VG UUID               ZOQvrP-PnJ2-kKsH-7aLU-eOa3-K5M2-sRstJH
+
+Create logical volume
+=====================
+::
+
+  $ sudo lvcreate -L 10G -n home vg0
+  Logical volume "home" created
+
+Show info about logical volume
+==============================
+::
+
+  $ sudo lvdisplay
+  --- Logical volume ---
+  LV Name                /dev/vg0/home
+  VG Name                vg0
+  LV UUID                XWJFnF-LjQg-Xsvm-IeQI-68mX-jiYd-pSpA00
+  LV Write Access        read/write
+  LV Status              available
+  # open                 1
+  LV Size                20.00 GB
+  Current LE             5120
+  Segments               1
+  Allocation             inherit
+  Read ahead sectors     0
+  Block device           254:0
+
+  --- Logical volume ---
+  LV Name                /dev/vg0/swap
+  VG Name                vg0
+  LV UUID                BHBQd0-1RlO-hHn7-jAij-Gyg6-KnqE-lRBgPY
+  LV Write Access        read/write
+  LV Status              available
+  # open                 1
+  LV Size                1.00 GB
+  Current LE             256
+  Segments               1
+  Allocation             inherit
+  Read ahead sectors     0
+  Block device           254:1
+
+Create fs on logical volume
+===========================
+::
+
+  $  sudo mke2fs -j /dev/vg0/home
+  mke2fs 1.40-WIP (14-Nov-2006)
+  Filesystem label=
+  OS type: Linux
+  Block size=4096 (log=2)
+  Fragment size=4096 (log=2)
+  1310720 inodes, 2621440 blocks
+  131072 blocks (5.00%) reserved for the super user
+  First data block=0
+  Maximum filesystem blocks=2684354560
+  80 block groups
+  32768 blocks per group, 32768 fragments per group
+  16384 inodes per group
+  Superblock backups stored on blocks:
+          32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
+
+  Writing inode tables: done
+  Creating journal (32768 blocks): done
+  Writing superblocks and filesystem accounting information: done
+
+Remove logical volume
+=====================
+::
+
+  $ sudo lvremove  /dev/vg0/home
+
+Move home dir to lvm
+====================
+::
+
+  $ su
+  ...
+  $ mv /home /home2
+  $ lvcreate -L 10G -n home vg0
+  $ mke2fs -j /dev/vg0/home
+  $ emacs /etc/fstab
+  ...
+  $ cat /etc/fstab
+  ...
+  /dev/vg0/home   /home  ext3  defaults  0  2
+  ...
+  $ mount -a
+  $ (cd /home2; tar -cf - .) | (cd /home; tar -xpf -)
+  $ rm -r /home2
+
+Creating swap on lvm
+====================
+::
+
+  $ su
+  ...
+  $ lvcreate -L 1G -n swap vg0
+  $ mkswap -v1 /dev/vg0/swap
+  $ emacs /etc/fstab
+  ...
+  $ cat /etc/fstab
+  ...
+  /dev/vg0/swap   swap  swap  defaults  0  0
+  ...
+  $ swapon -a
+