Translations:Add a Storage Partition & Modify your System to Suit/15/en
From Manjaro
Due to GParted doing its work with root permissions we need to change the ownership (owner:group) of the new partition, which we do by modifying the ownership of the directory name (that was created in the last command above) from root:root to <user.name>:users. To do that use the following Terminal command:
root # chown <user.name>:users /data/<new.partition's.name> <span class="mw-ui-button copy-to-clipboard-button" style="float: right; cursor: pointer; border-radius:5px; margin-top:5px" role="button" data-clipboard-text=" chown <user.name>:users /data/<new.partition's.name> " aria-disabled="false">COPY TO CLIPBOARD