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I've been working through these two tutorials, in the hopes of setting up a Raspberry Pi to run Owncloud and Resilio Sync in tandem. First, I installed Owncloud and gave it access to a mounted external HDD as recommended in the guide, and it works, but trying to "merge" privileges for the external HDD so that both it and Sync have read/write access to the directory has proven frustrating (i.e. it doesn't work on Sync's end).

Sync is owned by the "pi" user. Owncloud is owned by the "www-data" user. I tried chown-ing Sync to run as "www-data" but that had no positive effect. Here's my current fstab entry:

UUID=[UUID HERE] /mnt/ownclouddrive auto nofail,uid=33,gid=33,umask=0027,dmask=0027,noatime 0 0

Also, it appears I need to fstab the drive in order for Owncloud to work.

What am I overlooking? I'm a novice to Linux, so any help is appreciated. Thank you!

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  • It's weird that the guide you linked to only has instructions for using an NTFS formatted external drive. It would be better to use a drive formatted with a Linux native filesystem, such as ext4 or xfs (both of which have case-insensitivity options that might be useful if storing files for MS Windows clients), that automatically supports Linux user and group ownership and permissions. It would also be faster because ext4/xfs/etc would be running in kernel space, while ntfs-3g runs in user space as a FUSE module.
    – cas
    Feb 28, 2022 at 0:41

1 Answer 1

Reset to default
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Change the fstab to ...gid=www-data,umask=0007,dmask=0007... to allow group access to the drive. Read man umask.

Then, add user pi to the www-data group: sudo adduser pi www-data. Read man adduser.

Logout and login - groups are set up at login time.

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  • That did the trick! Thank you waltinator.
    – qlabsmusic
    Feb 27, 2022 at 6:03
  • @qlabsmusic Please click the checkmark to "accept" my answer, if it solved your problem, and might help others.
    – waltinator
    Feb 27, 2022 at 14:03

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