Changing the folder ownership on external HDD












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I try to give permission of a folder to MySQL to move a database to another disk, but strangely, I receive a permission error.



tom@mypc:~$ mkdir /media/tom/Web/test
tom@mypc:~$ sudo chown -R mysql:mysql /media/tom/Web/test
[sudo] password for tom:
tom@mypc:~$ sudo ls -al /media/tom/Web/test
total 8
drwxr-xr-x 2 mysql mysql 4096 Feb 4 04:13 .
drwxr-xr-x 9 tom tom 4096 Feb 4 04:13 ..
tom@mypc:~$ sudo -u mysql ls /media/tom/Web/test
ls: cannot access '/media/tom/Web/test': Permission denied


Note that this error does not appear if I create the folder on my main HDD. I read several Q&A threads stating that the problem is the NTFS format of the HDD, but my external HDD is ext4.



The problem exists for all secondary HDDs (both internally connected with SATA cable and externally with USB). I reckon the problem is associated with mount.



This is a typical entry of fstab



UUID=00e8ae0c-c00c-43dc-bc84-fa0abda33da5 /media/tom/Web ext4 defaults 0 0








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    I try to give permission of a folder to MySQL to move a database to another disk, but strangely, I receive a permission error.



    tom@mypc:~$ mkdir /media/tom/Web/test
    tom@mypc:~$ sudo chown -R mysql:mysql /media/tom/Web/test
    [sudo] password for tom:
    tom@mypc:~$ sudo ls -al /media/tom/Web/test
    total 8
    drwxr-xr-x 2 mysql mysql 4096 Feb 4 04:13 .
    drwxr-xr-x 9 tom tom 4096 Feb 4 04:13 ..
    tom@mypc:~$ sudo -u mysql ls /media/tom/Web/test
    ls: cannot access '/media/tom/Web/test': Permission denied


    Note that this error does not appear if I create the folder on my main HDD. I read several Q&A threads stating that the problem is the NTFS format of the HDD, but my external HDD is ext4.



    The problem exists for all secondary HDDs (both internally connected with SATA cable and externally with USB). I reckon the problem is associated with mount.



    This is a typical entry of fstab



    UUID=00e8ae0c-c00c-43dc-bc84-fa0abda33da5 /media/tom/Web ext4 defaults 0 0








    share

























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      I try to give permission of a folder to MySQL to move a database to another disk, but strangely, I receive a permission error.



      tom@mypc:~$ mkdir /media/tom/Web/test
      tom@mypc:~$ sudo chown -R mysql:mysql /media/tom/Web/test
      [sudo] password for tom:
      tom@mypc:~$ sudo ls -al /media/tom/Web/test
      total 8
      drwxr-xr-x 2 mysql mysql 4096 Feb 4 04:13 .
      drwxr-xr-x 9 tom tom 4096 Feb 4 04:13 ..
      tom@mypc:~$ sudo -u mysql ls /media/tom/Web/test
      ls: cannot access '/media/tom/Web/test': Permission denied


      Note that this error does not appear if I create the folder on my main HDD. I read several Q&A threads stating that the problem is the NTFS format of the HDD, but my external HDD is ext4.



      The problem exists for all secondary HDDs (both internally connected with SATA cable and externally with USB). I reckon the problem is associated with mount.



      This is a typical entry of fstab



      UUID=00e8ae0c-c00c-43dc-bc84-fa0abda33da5 /media/tom/Web ext4 defaults 0 0








      share














      I try to give permission of a folder to MySQL to move a database to another disk, but strangely, I receive a permission error.



      tom@mypc:~$ mkdir /media/tom/Web/test
      tom@mypc:~$ sudo chown -R mysql:mysql /media/tom/Web/test
      [sudo] password for tom:
      tom@mypc:~$ sudo ls -al /media/tom/Web/test
      total 8
      drwxr-xr-x 2 mysql mysql 4096 Feb 4 04:13 .
      drwxr-xr-x 9 tom tom 4096 Feb 4 04:13 ..
      tom@mypc:~$ sudo -u mysql ls /media/tom/Web/test
      ls: cannot access '/media/tom/Web/test': Permission denied


      Note that this error does not appear if I create the folder on my main HDD. I read several Q&A threads stating that the problem is the NTFS format of the HDD, but my external HDD is ext4.



      The problem exists for all secondary HDDs (both internally connected with SATA cable and externally with USB). I reckon the problem is associated with mount.



      This is a typical entry of fstab



      UUID=00e8ae0c-c00c-43dc-bc84-fa0abda33da5 /media/tom/Web ext4 defaults 0 0






      permissions mount hard-drive filesystem external-hdd





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