I have created and mount my drive using root. And now I dont have permissions to write anything on it.[ahmed@arkan Desktop]$ ls -altotal 12drwxr-xr-x.  5 ahmed ahmed   74 Apr 21 17:38 .drwx------. 21 ahmed ahmed 4096 Apr 21 11:15 ..-rw-r--r--.  1 ahmed ahmed  558 Apr 14 22:56 mdadm configdrwxr-xr-x.  3 ahmed root  4096 Apr 16 21:24 Raid_Datadrwxrwxr-x.  2 ahmed ahmed   43 Apr 21 17:40 Sample HTMLdrwxrwxr-x.  2 ahmed ahmed   47 Apr 21 17:28 Site[ahmed@arkan Desktop]$ The drive name is Raid_Data. I tried fixing it but still, it is still under groups root. 
Fixing permissions on external drive
centos;permissions;not root user