I recently attached a SSD to my system, with the old HDD in the DVD drive bay I set up the file mount option in the /etc/fstab file.

The permissions are as follows for SSD:

/dev/sda2   /home/arun/SSD/     auto rw,user,nodev,nofail,x-gvfs-show   0 0

for HDD

/dev/sdb2   /home/arun/HDD/     auto rw,user,nodev,nofail,x-gvfs-show   0 0

The differnce is the HDD do not give me any write permissions unless i am operating as root.

What I tried:

  1. using 'sudo chmod 777 /home//HDD' to change the permissions. command passes correctly but nothing reflects in action(root permission still needed), file permissions do not get a 'w' when i do 'ls -l'

  2. using 'sudo chown /home//HDD' , error: operation not permitted.

I was able to write to this HDD, before I cleaned both my disks and Installed the operating system Ububntu 16.04 LTS.

both the commands were run recursively and non-recursively.

Can This be due to the fact that I installed it in the DVD drive bay? Do I need to change something in the BIOS setting?

  • 1
    Post the output of lsattr /home/arun/HDD. Also, it may be better to create anSSD and HDDdirectory in /mnt and change your /etc/fstab to mount the drives there rather than mounting them in your home directory. Apr 1, 2018 at 17:38

1 Answer 1


run from root this command:

chown -R arun:arun /home/arun/HDD 

and after try to write something in it.

  • already tried, same error: operation not permitted
    – ArunMKumar
    Apr 1, 2018 at 17:29
  • 1
    is that an fat16 or fat32 or exfat filesystem? if yes they can't handle permissions. Apr 1, 2018 at 17:36
  • 1
    NTFS won't take the permissions either. Apr 1, 2018 at 17:55
  • yes you are right, you have to set permission on mount. something like this : /dev/sda2 /home/arun/HDD/ auto rw,user,fmask=0022,dmask=0000,nodev,nofail,x-gvfs-show 0 0 Apr 1, 2018 at 18:14
  • thanks @D'ArcyNader it was a FAT32 partition, now formatted to ext4. problem gone now.
    – ArunMKumar
    Apr 24, 2018 at 10:01

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .