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Additionally, you can set a fixed size for the volume group by selecting the `Fixed` option from the `Size policy` menu and entering a size for the volume group.
After you finish configuring the volume group settings, click `Save` to return to the main `Manual Partitioning` screen.
anaconda/CustomSpoke_AddLVM.png
Click the `+` button at the bottom of the list showing existing mount points. A new dialog window will open.
Configure other settings specific to the logical volume - its `Mount Point`, `Desired Capacity`, `File System`, and `Name`. Press `Update Settings` to apply any changes to the configuration.
Create LVM Logical Volume
Creating a Logical Volume Managament (LVM) Layout
Creating LVM Logical Volumes and Groups
Follow the procedure below to create LVM logical volumes and volume groups.
For each mount point you create, review its settings and make sure that it is assigned to the correct group, that it has sufficient capacity, and that it has a descriptive name so you can identify the volume later if you need to.
If you need to create more than one volume group, open the `Volume Group` drop-down menu and select the `Create a new volume group` option. A new dialog window will open, identical to the one described in the previous step. Again, select a name, storage devices, encryption settings, RAID level and size policy for the new group, and click `Save`. The new volume group will then become available in the `Volume Group` drop-down menu; you can then go through your existing mount points and change this setting to assign them to a different volume group.
If you select a redundant RAID type (such as `RAID1 (Redundancy)`), the volume group will take up twice its actual size on your disks. A 5 GB volume group with RAID1 will take up 10 GB of space.
In the `Configure Volume Group` dialog, you can change the volume group's name, its `RAID level` (see xref:Installing_Using_Anaconda.adoc#sect-installation-gui-manual-partitioning-filesystems[Device, File System and RAID Types] for information about available RAID types), and you can also specify which physical devices (disks) this volume group should reside on. You can select one or more disks which will be used to hold this volume group by holding down kbd:[Ctrl] and clicking each disk in the list.
In the new dialog window, specify a mount point for which you want to create a separate logical volume - for example, `/`. Optionally, specify a size for the volume using standard units such as MB or GB (for example, `50GB`). Then, click `Add mount point` to add the volume and return to the main partitioning screen.
In the `Volume Group` menu, you can see that the volume has been assigned to an automatically created volume group, which is named after the {PRODUCT} variant you are installing (for example, `fedora-server`. Click the `Modify` button under the drop-down menu to access the volume group settings.
_Logical Volume Management_ (LVM) presents a simple logical view of underlying physical storage space, such as hard drives or LUNs. Partitions on physical storage are represented as _physical volumes_ that can be grouped together into _volume groups_. Each volume group can be divided into multiple _logical volumes_, each of which is analogous to a standard disk partition. Therefore, LVM logical volumes function as partitions which can span multiple physical disks.
Repeat this procedure for any additional logical volumes you want to create. Note that when creating additional LVM logical volumes, a new volume group is not automatically created each time; instead, any additional volumes are assigned to an existing group.
See xref:appendixes/Understanding_LVM.adoc#appe-lvm-overview[Understanding LVM] for additional information about the concepts behind Logical Volume Management.
Some partition types - notably the `/boot` directory and the BIOS Boot and EFI partitions - can not be placed on logical volumes. Use standard physical volumes for them. See xref:Installing_Using_Anaconda.adoc#sect-installation-gui-manual-partitioning-recommended[Recommended Partitioning Scheme] for more information.
The configuration dialog does not allow you to specify the size of the volume group's _physical extents_. The size will always be set to the default value of 4 MiB. If you want to create a volume group with different physical extents, create it manually by switching to an interactive shell and using the [command]#vgcreate# command, or use a Kickstart file with the [command]#volgroup --pesize=pass:attributes[{blank}]_size_pass:attributes[{blank}]# command.