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Do you need to expand volume group for LVM resize?
Note: If you do not have any or enough free space in the volume group, you will first need to expand the volume group to complete the resize. Alternatively if you have multiple LVM partitions, you could shrink a different logical volume first to create space within the volume group.
How to check the size of the LVM partition?
You can see the LV Size 800.00 Mib line which indicates the new size. You can also mount the filesystem and check it using the command df -Ph command Note that we resize the filesystem with resize2fs command before reducing the logical volume with lvreduce command.
How to increase logical volume ( LVM ) on fly?
Logical Volume (LV) : This is also called partition, it sits within a VG ( volume group ) and has a file system written to it. We can increase the lvm on fly with no downtime or mount the volume without interruption.
How big is the free space in LVM?
Above you can see there is 5GB of free space is available in the volume group, as shown by “Free PE / Size 1279 / 5.00 GiB”.
Can a file system be mounted on a LVM volume?
File System: A file system such as ext4 will be on the logical volume. This process is extremely easy to do with LVM as it can be done on the fly with no downtime needed, you can perform it on a mounted volume without interruption.
How to shrink home partition in LVM online?
Online resize LVM partitions – shrink home / extend root By default, most Linux Installers create separate /home partition, occupying most of the drive space. When server is used mostly for system services, you may transfer free space from /home partition to /root.
How to resize LVM partition in Ubuntu 12.04?
It combines functionality of GParted and system-config-lvm. Moreover, it allows some operations on live (mounted) partitions that system-config-lvm doesn’t allow However, the volume has to be unmounted for shrinking. It is in universe repository since Ubuntu 12.04, so just do sudo apt-get install kvpm