Hi, I'm helping a friend transfer his data to his new server but having a bit of an issue. He has a bunch of Apple format (HFS+ I presume) drives. I've installed two of them physically inside the server but everything I have done to try and mount them hasn't worked.

 

To the best of my knowledge they are both full 3tb drives, HFS+ format. The show up in UnMenu Disk Management as:

ST33000651AS_9XK06WX1 * 3T /dev/sde

ST33000651AS_9XK0159Z * 3T /dev/sdc

partition (366,282,000 blocks): /dev/sdc1

 

Notably although I am led to believe they are of the same format, there is no sde1 listed.

 

I have SNAP for Unraid v5 installed. When I view the drives there I see the "No FS" label beside each of them.

 

I have tried manually mounting the drives doing "mkdir /mnt/hfs" then "mount -r -t hfsplus /dev/sde /mnt/hfs". This produces the following message:

mount: wrong fs type, bad option, bad superblock on /dev/sde,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

 

I've also tried the command "modprobe hfsplus" (which is silent in its response) then repeating the above manual attempt at mounting to no avail.

 

There is no mount button in UnMenu Disk Management.

 

I have no reason to think that the drives have been modified by the installation in the unraid box. They've not been added to the array or anything like that.

 

Can anyone suggest how I should try and troubleshoot this? Ideally I'd like to do the data transfers internally, rather than across the network since we have about 25tb to transfer in total. Idiot instructions appreciated since I am quite new to Linux and also Mac.

 

Many thanks!

 

EDIT: Attached syslog and confrim version of unraid is 5.0.5

hfssyslog.txt

I don't know how to do this...HFS+ is not mountable by unRAID with or without SNAP.

You're going to have to transfer them over the network.

 

If you mount the HFS+ drive to a MAC, and mount another (empty) drive to the same mac, and format the empty drive as NTFS*, then copy all data from Mac HFS+ to the NTFS drive, THEN, I believe the NTFS drive can be mounted on unRAID via SNAP.

 

*(you may need the free preference panel 'NTFS-3G' to mount this on your mac). 

 

But by this time, you've already spent way too much time. I'd just copy via the network...sorry.

 

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Some tips if you're going to copy via the network:

1. Do not have multiple 'copy' commands running simultaneously...That is, don't grab a group of files and drop them on unRAID and grab another group of files and drop them on unRAID while the first group is still copying. There's a couple of reasons for this:

a. its slower overall (because the drives are thrashing around trying to accommodate multiple writes)

b. if you  run out of disk space, one or more of the simultaneous copies will fail not-gracefully.

2. Do your writes in chunks...not an entire disk at a time. I'm not sure if its memory, or the mac (happens on PC, too), but there's something about huge file transfers that cause them to drop...typically at around the 10Gig mark.

 

One solution appears to be muCommander. Free:

http://www.mucommander.com/

which allows you to 'continue' when that drop occurs.  that at least saves you the trouble of restarting the copy from scratch.

 

Freefilesync gets some good reviews, but I've not personally tried it.

http://sourceforge.net/projects/freefilesync/

 

Others have recommended 'supercopier'. Again, I've not tried it. It too is free.  In its preferences, there's a setting that allows you to restart a failed download...so maybe it'll work on its own all night.

http://ultracopier.first-world.info/supercopier.html

 

Thanks for the info and the tips. It is very much appreciated.

 

I'm a bit gutted about the lack of HFS support. There are a few threads here with people talking about having mounted HFS, and I found a command earlier that showed HFS+ as a filesystem recognised by unraid... but the fact that you can't mount a drive with it seems puzzling! Perhaps this is a feature removed in version 5? To be fair, most of the threads I saw were pretty old.

 

I guess network transfer may be it... Might have to wait a while though. I don't have a Mac myself, so will have to borrow the server owner's, or get some sort of HFS+ drievr for my windows machine and then do it in chunks overnight.

 

Thanks again for your insight!

Wait a bit...

Its my experience that HFS+ can't be mounted, but I wasn't aware of any threads that indicated success...

let me search the forums a bit.

Meantime, before you borrow a Mac, wait and see if anyone else chimes in with a solution...

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Huh...

Haven't tried this way of mounting, but this thread suggests that Midnight Commander can see files using SNAP to mount.

(but the files AREN"T visible on a windows machine...your WINDOWS OS doesn't support HFS+)

http://lime-technology.com/forum/index.php?topic=16967.msg154432#msg154432