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to include: http://wiki.bluelightav.org/display/BLUE/LVM+Howto
On
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Debian and Ubuntu
We will assume that you create the LVM on a RAID partition called md1. Adapt this to your situation.In the examples the LVM physical volume (PV) is md1.
To name a volume group, please use the first two components of the hostname, separtated by dot (.), ie for example ac001.blue, for the naming convention please look at http://wiki.bluelightav.org/x/ewEW
To create more volume groups, use the same beginning and add _(description), where description is a meaningful identifier. ie , for example ac001.blue_2TB_backup
Create the physical volume
Note: this step can be omitted; it is implied by the next step.
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pvcreate /dev/md1 |
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Here we are going to create an LV for swap. 10G gives the size of the volume (10 Gb). Adapt it to your needsGB)
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lvcreate -L 10G -n root ac001.blue |
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To add another volume redo the lvcreate step.
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Format the logical volume (LV)
For a file system. The example formats the LV with JFS, Blue Light's standard file system other than for the /boot partition:
mkfs.
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jfs /dev/ac001.blue/root
Check the filesystem
lvs
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For a swap device:
mkswap /dev/ac001.blue/swap
Resize a logical volume (LV)
http://wiki.bluelightav.org/display/BLUE/How+to+resize+LVM+partitions
Rename an LV
Umount any file system contained by the concerned LV and rename
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umount <drive><device> lvrename <vgname> <oldlvname> <newlvname> |
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Activate LVMs
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vgchange -ay |
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A great howto is here http://www.gagme.com/greg/linux/raid-lvm.php
Chrooting and
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installing GRUB 2 on LVM setup
Boot with a live CD or CrowBar
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