Hello, my server provider installed Debian 9 stretch 64bit and this is the disk space layout after installation: https://pastebin.com/E0DHUhrG The tmpfs and udev filesystems seems not to be using any disk space according to that figures. But they have big quotas? Code: /dev/sda1 * 2048 1031962623 1031960576 492.1G 83 Linux /dev/sda2 1031964670 1166012415 134047746 63.9G 5 Extended /dev/sda5 1031964672 1166012415 134047744 63.9G 82 Linux swap / Solaris I would like to have one big LVM volume, around 80% of the disk space and i am expecting i will be tight on disk space on this volume. In the future will it anyhow limit me to have udev tmpfs so high quota when my main/largest LVM volume will need more disk space in future? Would be wise to convert everything to LVM so i can resize them easily in future? Here is mentioned that it may not be good idea to convert root partition into LVM. I see i can use "fdisk /dev/sda" to change /dev/sda1 type from Linux to Linux LVM. But when reading this page, i am unsure if this LVM change in fdisk is all what i need to do, if i do not need to install some LVM software. apt-get install lvm2 says: The following NEW packages will be installed: dmeventd libdevmapper-event1.02.1 liblvm2app2.2 liblvm2cmd2.02 libreadline5 lvm2 Also there is LVM2. What is a difference between Linux LVM type created by fdisk and lvm2 installed by "apt-get install lvm2" ? Thank You for advises what is needed to convert my setup to LVM.