1. Oooops, we don't have space anymore!
# df -h
2. Look the current layout of LV and VG
# vgdisplay -m
# lvdisplay
3. Umount the path from lv will be removed
# umount /dev/cl/home
4. Remove lv
# lvremove /dev/cl/home
5. Remove VG
# vgremove cl
6. Now it's time to extend the /dev/mapper/centos-root
# lvextend -r -l +100%FREE /dev/mapper/centos-root
7. Take the extra space to /dev/centos/root (XFS)
# xfs_growfs /dev/centos/root
* For ext3/ext4 use: resize2fs /dev/centos/root
8. See th result
# df -h
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