Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I think the question title explains itself, but I will give you some details...

I have a MacBook Pro Late 2011 with Ubuntu 13.10 and OS X Mavericks sharing the same hard drive with OS X using most of it. In the OS X partition, I have my development folder with all my working projects, learning projects, etc.

What I want to do is to share this folder between the OSs, because I work in both systems depending the language or project, and I have to manually sync both devel folders all the time, and I'm tired of it.

I don't know if this is even posible... maybe changing the folder permissions (I already tried, but I have to update new file permissions all the time), I don't know if I can tell both systems to write custom permissions for files inside particular folders, or if there's an app to help me do this.

What can I do?

And thank you for your help.


For now, I'm using the default settings for this folder, and as I said, the fold belong to OS X and I can access to it from Ubuntu using sudo. I also have a similar folder in the Ubuntu partition where I can work when I'm using this system, but everytime I ha to manually sync both folder so I can access them from each system.

Everytime I copy files from one folder to another, I have to set the right permissions again for every file and folder, it sux.

share|improve this question
Please describe your current configuration and what you could do and what not. Do you could see the devel folder from OSX in Ubuntu and vice versa? – UsersUser Dec 1 '13 at 19:05
I don't know how much data you have to transfer this way, but if it's not too much, you could simply use a cloud storage service to automatically sync your folders for you. When you modify the file in, say, Ubuntu, it'll be uploaded to the service's servers, and when you log in to Mac OS, the file will automatically be re-downloaded in the same folder structure. This still makes you have each file twice, and it goes through the Internet, which sucks if you have a limited connection. Regardless it's a rather simple solution. Dropbox for instance is available for Mac OS as well as Linux. – Ariane Dec 2 '13 at 5:41
That's what I thought... I'm just looking for something more "native" @Ariane – Dave Gomez Dec 3 '13 at 12:22
up vote 2 down vote accepted

It is possible, even though it requires a bit of work. Let me remind you, though, that support of HFS+ in Linux is not complete: Linux systems have read and write access only by disabling journaling, which decreases the ability of your disk to survive the usual hardware problems. You should consider an alternative solution: installing Ubuntu in a Virtual Machine. This would completely solve all of your problems.

As for the OP: the problem lies most likely in a difference between user ID and group ID (UID -GID) of the users accessing the partition under the two different OSes. UID/GID can be synchronized. The procedure requires a tad of work, you can find it discussed in full detail on this Web page. It is arranged in such a way that, if anything goes wrong, you can easily backtrack. It also contains the list of all the places in Ubuntu where you will have to change your UID/GID.

share|improve this answer
Awesome tutorial @MariusMatutiae, thank you for sharing. Sorry I can't give you points for this (can't yet). – Dave Gomez Dec 3 '13 at 12:24

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.