Omnia Apple Mac NAS - Sharing HFS+ Drives [MacOS/OS X, non-APFS] (e.g. Time Machine, Shared Folder, ..)



Hello, i could find a few topics on HFS+ mounting here and a tutorial on specific HFS+ sharing in OpenWRT but nothing gathered under one topic about a simple a HFS+ share with Omnia.

Maybe we can concentrate the necessary steps and guidelines here (specifically for HFS+) as having spent most of the past two days trying to make sense of different bits and topics i know it would help anyone interested to have it all in one place, and i definitely need this at this point.

From other topics and OpenWRT iv gathered:

  • creating a ‘Mount Point’ in ‘System’ (LuCI) with device identifiable by ssh ‘blkid’ in many ways but likely the ‘/dev/sda2’ in the case of a HFS+ drive normally formatted by Apple’s ‘DIsk Utility’.
    recommended mount point is ‘/mnt/‘drive name’’ in my case /mnt/cloud9
    suggested advanced settings are identifying the HFS+ filesystem and running a filesystem pre-check; of all indicated possible options everywhere, the following appears more complete: ‘force,rw,sync’

  • making sure to install ‘hfsfsck’, ‘kmod-fs-hfsplus’, and ‘mkhfs’ packages available in ‘System’ ‘Software’ and confirming it is mountable by ssh with ‘mount -t hfsplus /dev/sda2 /mnt/cloud9’ - where /dev/sda2 is our desired mount and ‘cloud9’ is our own drive name. this all works for me, then we can find a tutorial here on how to proceed with a ‘NTFS’ formatted drive, so here we could go onto distributing this for HFS+?

  • packages ‘netatalk’ for the Apple ‘AFP’ protocol and the ‘avahi-daemon’ for advertising the share are recommended, and the OpenWRT TimeMachine tutorial explains this all in great length, but in cases where simple guest login is sufficient it seems that it could be made simpler. in my case my OS X system connects to the Omnia and asks for account login, accepts guest login but ultimately says no cloud9 share exists. connecting via samba successfully mounts /dev/sda1 which is good to know but not what i need.

can you help make this a definitive thread, and me go back to work?:slight_smile: cheers and thanks in advance


Just shortly about necessary (pre-)requisities about networked TM:

  1. You don’t need HFS+ formatted disk on Omnia to make a network share for macOS device. Disk filesystem is important only for device which has directly connected disk (e.g. Synology uses standard ext4/btrfs for the same scenario). Simply use the best filesystem for device/OS which has the disk directly attached (i.e. Omnia) and don’t try to overcomplicate that with non-native filesystem.
  2. For network Time Machine Apple switched from AFP to “standard” SMB thus any guides mentioning AFP is obsolete now.

Only Avahi remains as required component (macOS requires that SMB share has to be announced as TM share by Zeroconf - Bonjour/Avahi).

EDIT: Not sure, but it seems “fruit” VFS feature is necessary in Samba (i.e. it should be version 4).


TL;DR thank you @kmarty. thanks to you iv finally got my shared ‘cloud9’ mounted on OS X - it is not yet writeable in spite of force,rw option - would you have an idea on how to make this so?

continuing how-to,

  • in this case HFS+ is needed to be able to quickly grab the drive and use it directly off-site (saving native filesystems reminder).

  • TL;DR disabling mountd (legacy) solved mac mounting of HFS+ share.
    mountd was somehow interfering with accessing sda2 and this thread here solved this Vfat partition always mounts.

  • As pointed out by @kmarty, available online OpenWRT tutorials on this subject are at least partly outdated and easier SMB is to be used as Apple standard.

One tutorial specifically addresses mounting HFS+ shares as writeable Mount read-write HFS+ drive in OpenWRT but the given solutions (force,rw option & hfsfsck,kmod-fs-hfs, kmod-fs-hfsplus, mkhfs, and sshfs packages install) arent solving this in my case yet.