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I'm starting to use a mac, and would like to install different operating systems on it, and, if possible, share some partitions. (like home)

I'm planning to install Debian along with Mac OS X Snow Leopard, and share it's home directory, of, if possible, at least, create a new partition only for my mp3 files.

Anyone knows a guide for it? Or risks in doing it... thanks!

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If you're not requiring direct device access or 3D capabilities, a virtual machine running Debian would be an easy and lightweight option, not to mention more flexibility in how you use your (limited) disk space. –  Daniel Beck Dec 16 '10 at 7:25

3 Answers 3

You can mount your OSX partitions with "mount -t hfs". Doing that on a read-only basis (ie: "mount -t hfs -o ro /dev/sdaX") is very safe. I don't trust writes to it though. If you're transferring files between systems, it is better to setup an additional hfs formatted partition for that purpose.

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Read-only sharing of home would defeat the purpose, if I understand the intend of the OP correctly. –  Daniel Beck Dec 16 '10 at 7:23
    
OSX won't read filesystems common to Linux like ext*. Linux can read hfs and hfsplus, but I wouldn't trust it for /home use. When actually writing to an hfsplus system, you have to unmount it and fsck.hfsplus it before OSX sees it. Therefore, I really don't see a reliable way to share /home between the two systems. He can try it, but I'd back everything up daily. –  Pete Ashdown Dec 16 '10 at 16:08
up vote 1 down vote accepted

It's possible to use ext3 on a mac. I'm going through that route.

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If you are using several operating systems and you are not maxing out the CPU or disk speed the it might be easier to start with running the OSs in a virtual machine. There are severla including a free one Virtual Box This can allow the OS in the box to access data in shared directories on the host OS.

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Why the downvote? –  Mark May 29 '12 at 17:12

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