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-*- mode: outline; coding: utf-8; fill-column: 80 -*-
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* Debian package.
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204
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$ sudo apt-get install lvm
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* See partitions.
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$ sudo sfdisk -l
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or use gparted(1).
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* Setup physical volume.
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$ sudo pvcreate /dev/sdc3
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Physical volume "/dev/sdc3" successfully created
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* Setup volume group.
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$ sudo vgcreate vg0 /dev/sdc3
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Volume group "vg0" successfully created
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* Show info about volume group.
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$ sudo vgdisplay
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0
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--- Volume group ---
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VG Name vg0
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21
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System ID
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0
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Format lvm2
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Metadata Areas 1
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Metadata Sequence No 1
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VG Access read/write
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VG Status resizable
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MAX LV 0
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Cur LV 0
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Open LV 0
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Max PV 0
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Cur PV 1
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Act PV 1
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VG Size 77.22 GB
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PE Size 4.00 MB
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Total PE 19769
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Alloc PE / Size 0 / 0
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0
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Free PE / Size 19769 / 77.22 GB
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VG UUID ZOQvrP-PnJ2-kKsH-7aLU-eOa3-K5M2-sRstJH
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* Create logical volume.
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$ sudo lvcreate -L 10G -n home vg0
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Logical volume "home" created
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* Show info about logical volume.
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$ sudo lvdisplay
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--- Logical volume ---
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LV Name /dev/vg0/home
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VG Name vg0
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LV UUID XWJFnF-LjQg-Xsvm-IeQI-68mX-jiYd-pSpA00
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LV Write Access read/write
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LV Status available
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# open 1
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LV Size 20.00 GB
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Current LE 5120
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Segments 1
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Allocation inherit
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Read ahead sectors 0
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Block device 254:0
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--- Logical volume ---
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LV Name /dev/vg0/swap
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VG Name vg0
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LV UUID BHBQd0-1RlO-hHn7-jAij-Gyg6-KnqE-lRBgPY
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LV Write Access read/write
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LV Status available
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# open 1
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LV Size 1.00 GB
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Current LE 256
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Segments 1
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Allocation inherit
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Read ahead sectors 0
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Block device 254:1
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0
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* Create fs on logical volume.
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$ sudo mke2fs -j /dev/vg0/home
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mke2fs 1.40-WIP (14-Nov-2006)
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Filesystem label=
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OS type: Linux
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Block size=4096 (log=2)
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Fragment size=4096 (log=2)
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1310720 inodes, 2621440 blocks
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131072 blocks (5.00%) reserved for the super user
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First data block=0
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Maximum filesystem blocks=2684354560
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80 block groups
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32768 blocks per group, 32768 fragments per group
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16384 inodes per group
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Superblock backups stored on blocks:
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32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
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Writing inode tables: done
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Creating journal (32768 blocks): done
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Writing superblocks and filesystem accounting information: done
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* Remove logical volume.
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22
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$ sudo lvremove /dev/vg0/home
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0
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* Move home dir to lvm.
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$ su
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...
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$ mv /home /home2
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$ lvcreate -L 10G -n home vg0
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$ mke2fs -j /dev/vg0/home
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$ emacs /etc/fstab
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...
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$ cat /etc/fstab
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...
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/dev/vg0/home /home ext3 defaults 0 2
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...
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$ mount -a
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$ (cd /home2; tar -cf - .) | (cd /home; tar -xpf -)
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$ rm -r /home2
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* Creating swap on lvm.
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$ su
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...
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$ lvcreate -L 1G -n swap vg0
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$ mkswap -v1 /dev/vg0/swap
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$ emacs /etc/fstab
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...
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$ cat /etc/fstab
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...
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/dev/vg0/swap swap swap defaults 0 0
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...
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$ swapon -a
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