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I had an HFS+ formatted drive that was going bad and wouldn't mount at all on OSX. I created an image using ddrescue on linux, and was able to save most of it.
I can mount the drive and see the data just fine in linux using this:
mount -o loop -t hfsplus dd_image mountpoint
This doesn't work on my OSX system since hfsplus isn't a valid filesystem type. If I try:
mount -t hfs image mountpoint
It complains that it needs a block device. What's the fix here?
There isn't one. Disappointed me many times. – squircle – 2010-06-07T23:06:44.090
You've gotta be kidding me... no way to mount a DD image on OSX at all? It's friggin' BSD... – Paul McMillan – 2010-06-07T23:22:33.647
OSX file systems are HFS+ which is unique to Apple (They had to support old MacOS and so changed from the BSD system they had in NeXT). Note that this is all Unix complient – user151019 – 2010-06-08T10:31:32.587