X-Files Wiki

This guide asumes gparted or similar has been used to extend the disk first.

vgdisplay

You will get an outpout similar to this one.

--- Volume group ---
VG Name               vg0
System ID             
Format                lvm2
Metadata Areas        1
Metadata Sequence No  7
VG Access             read/write
VG Status             resizable
MAX LV                0
Cur LV                1
Open LV               1
Max PV                0
Cur PV                1
Act PV                1
VG Size               <49.00 GiB
PE Size               4.00 MiB
Total PE              12543
Alloc PE / Size       9727 / <38.00 GiB
Free  PE / Size       2816 / 11.00 GiB
VG UUID               L6MTYI-RIC3-D40W-pJOq-tEvn-UQEe-BFvkb3

Here we have 11 GB free as shown by this line:

"Free PE / Size 2816 / 11.00 GiB"

Let's have a look at the logical volumes.

lvdisplay

You will get an outpout similar to this one.

--- Logical volume ---
LV Path                /dev/vg0/root
LV Name                root
VG Name                vg0
LV UUID                rCx5XM-BPPn-eJVj-CvbE-ahfX-7fpa-2XtgDN
LV Write Access        read/write
LV Creation host, time localhost, 2019-05-23 15:16:53 +0200
LV Status              available
# open                 1
LV Size                <38.00 GiB
Current LE             9727
Segments               1
Allocation             inherit
Read ahead sectors     auto
- currently set to     8192
Block device           253:0

We will expand "/dev/vg0/root" as shown by this line:

"LV Path /dev/vg0/root"

If we want to use all availabe space we can run the following command:

lvextend -l +100%FREE /dev/vg0/root

If however you only want to extend with like say 5 GB use this command:

lvextend -L+5G /dev/vg0/root

Now we need to resize the file system.

resize2fs /dev/vg0/root

Note you can skip the resize2fs part by using the -r (resizefs) flag in lvextend like this:

lvextend -r -l +100%FREE /dev/vg0/root

Once done check that everything is in order.

df -H