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            <h1>Resizing/Extending Logical Volumes (LVM) in Proxmox</h1>
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          <h2>What is LVM?</h2>

<blockquote><em>LVM stands for Logical Volume Management. It is a system of managing logical volumes, or filesystems, that is much more advanced and flexible than the traditional method of partitioning a disk into one or more segments and formatting that partition with a filesystem. - <a href="https://wiki.ubuntu.com/Lvm" target="_blank">https://wiki.ubuntu.com/Lvm</a></em></blockquote>

<h2>WARNING</h2>

<blockquote>Below are the steps I took when I replaced my Proxmox 32GB microSD with a 64GB and cloned the installation from the old card to the new one. Do not attempt these steps without first having a backup as there is a high risk of data loss if the partition changes are unsuccessful</blockquote>

<h2>Extending a LVM Volume</h2>

<ol>
	<li>Log into the device using LVM, in this example I&#39;ll be extending the pve-root and data volumes in Proxmox</li>
	<li>Run the following commands in terminal
	<div class="codeBlock"># login as root if needed (not needed for proxmox)<br />
	sudo su<br />
	# list disks and partitions<br />
	fdisk -l<br />
	# list volume groups<br />
	vgdisplay<br />
	# list logical volumes<br />
	lvdisplay<br />
	# edit partitions with fdisk, change device id as needed<br />
	fdisk /dev/sda<br />
	# print the partition table<br />
	p<br />
	# delete a partition<br />
	d<br />
	# enter the lvm partition number<br />
	3<br />
	# create a new partition<br />
	n<br />
	# enter the new partition number, same as the number deleted<br />
	3<br />
	# press enter to accept the default first sector<br />
	# press enter to accept the default last sector<br />
	# when prompted about removing the LVM signature, enter N<br />
	n<br />
	# set the partition type<br />
	t<br />
	# enter the partition number<br />
	3<br />
	# set the type to Linux LVM<br />
	30<br />
	# write the changes<br />
	w<br />
	# list disks and partitions, noting the size increase<br />
	fdisk -l<br />
	# extend the existing physical volume<br />
	pvresize /dev/sda3<br />
	# extend the pve-root logical volume to 100% available free space<br />
	lvresize -L +8GB /dev/pve/root<br />
	# extend the underlying file system<br />
	resize2fs /dev/mapper/pve-root<br />
	# list logical volumes, noting root is now 8GB larger<br />
	lvdisplay<br />
	# extend the data to 100% available free space<br />
	lvextend -l +100%FREE pve/data<br />
	# list logical volumes, noting data is now over 35GB<br />
	lvdisplay</div>
	</li>
</ol>

<p>Further Reading: <a href="https://wiki.ubuntu.com/Lvm" target="_blank">https://wiki.ubuntu.com/Lvm</a></p>          </div>
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