Sometimes it is necessary to resize partitions (e.g. updates to GitLab require additional space on /opt). Here's what we need to do. If you have an LVM parition, you're in luck! Things are pretty straightforward.

1.   Run vgdisplay (Volume Group Display) to verify we have space to expand our partition.
   •     The line PE Free / Size should have space available.
2.   Next, add space to the parition with lvresize (Logical Volume Resize):

   sudo lvresize --size +100M /dev/mapper/opt

3.   Now that the volume has been expanded, let's commit those changes to the filesystem:

   sudo xfs_growfs /dev/mapper/opt

Profit!