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I've downloaded some gopro footage to my local hd and then copied the files from my hd to an external drive. Whenever I want to change the access rights it will switch back to read only in Nautilus. Likewise if I change the ones for the files below. How can I give full rights? I need to process the footage on a mac.

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sudo parted -l /dev/sdb

Modell: JMicron Generic (scsi)
Festplatte  /dev/sdb:  500GB
Sektorgröße (logisch/physisch): 512B/512B
Partitionstabelle: msdos

Nummer  Anfang  Ende   Größe  Typ      Dateisystem  Flags
 1      1049kB  500GB  500GB  primary  ext2
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  • Is the external drive mounted as read-only? Try to change the permission from the command line as the root user and check what happens.
    – heemayl
    Jan 25, 2015 at 17:36
  • My user (nuc) can change and delete files, but only on this nuc. How?
    – empedokles
    Jan 25, 2015 at 17:41
  • Does mount say anything useful?
    – heemayl
    Jan 25, 2015 at 17:44
  • @heemayl : I've postet above what it says.
    – empedokles
    Jan 25, 2015 at 17:50
  • Looks like it is mounted as FUSE FS. Check the solutions given here
    – heemayl
    Jan 25, 2015 at 18:09

1 Answer 1

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From this line
/dev/sdb1 on /media/nuc/500GB type fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
I see that external drive filesystem is NTFS and it was by default mounted without respect to NTFS permissions. In this case all files/directories will have the same permissions and attempts to change them will be ignored.

I have solved similar problem by making permanent share with explicit settings:
write line
UUID=C848-2413 /mnt/E_DRIVE vfat rw,user,exec,umask=002
into /etc/fstab where UUID is from sudo blkid. (Then mkdir /mnt/E_DRIVE, setting permissions, then umount / mount.)

Simpler alternative is to install special tool:
https://apps.ubuntu.com/cat/applications/quantal/ntfs-config/

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  • The special tool somehow doesn't allow me to delete files via delete button. Is this normal? I could reformat it, if you can tell me a file format that both ubuntu and mac osx understands.
    – empedokles
    Jan 25, 2015 at 18:57
  • You can reformat external HDD as FAT/FAT32/ext2f file system then copy again from linux HDD to it (I assume you have a copy of the files, please check before formatting.) From what I see in guides.macrumors.com/Drives_and_Filesystems they all are supported by macos x. Jan 25, 2015 at 19:02
  • I formated to ext2. But unfortunately I don't own the drive anymore (from what I see in nautilus). I deinstalled the suggested special tool, but it didn't change anything.
    – empedokles
    Jan 25, 2015 at 19:48

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