[linux-lvm] Correct way to add disc to LVM
Craig Hagerman
craighagerman at gmail.com
Fri Oct 21 12:14:44 UTC 2005
Hi all,
I want to make sure I understand the correct way to add more disc
space under LVM. If you have LVM set up on one single HD, and then
want to extend that to cover a second HD what is the correct way to
proceed?
>From reading the HOWTO I think this is how it is done. Am I missing
anything essential here?
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Add physical volumes to a volume group:
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Use 'vgextend' to add an initialized physical volume to an existing
volume group.
# vgextend my_volume_group /dev/hdc1
^^^^^^^^^ new physical volume
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Extend logical volume:
---------------------------------------------------------------------
# lvextend -L12G /dev/myvg/homevol
will extend /dev/myvg/homevol to 12 Gigabytes.
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Increase size of file system to match the logical volume (assuming ext2 / 3):
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# umount /dev/myvg/homevol/dev/myvg/homevol
# resize2fs /dev/myvg/homevol
# mount /dev/myvg/homevol /home
Is this correct? Is this all you have to do?
Craig
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