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I recently did a

ssh root@myserver "dd if=/dev/xvda " | dd of=/<localpath>/myimage.img

as instructed by my VPS server docs at linode. I did this before to another linux system and mounted it perfectly by doing

sudo mount -o loop myimage.img mountdirectory

But on my mac osx 10.7 I get the following error.

mount: You must specify a filesystem type with -t.

I tried -t ext, -t ext3, -t ext4 but all failed with an error like this

mount: exec /System/Library/Filesystems/ext4.fs/Contents/Resources/mount_ext4 for /<mount directory>: No such file or directory

How do I fix this?

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closed as off topic by Shane Madden, Scott Pack, voretaq7 Aug 31 '12 at 18:29

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Mac OS X isn't Linux - the supported filesystems are completely different. –  Shane Madden Jul 29 '12 at 18:36
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2 Answers 2

up vote 1 down vote accepted

Get VirtualBox and install Ubuntu on it. Pass the .img file to the VM as a disk. Edit the fstab in the VM to mount the disk image.

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Shamelessly stolen from the answer on this Ask Different question


The answer depends on the OS X version you are running:

If you are running 10.5 (Leopard) or 10.6 (Snow Leopard), Paragon’s ExtFS driver (commercial) will give you read and write access to ext2 / ext3 / ext4 file systems. Paragon does not list Lion as a compatible OS for the ExtFS driver version current as of November 1st, 2011, 8.0, and considering that the NTFS driver, which shares the same core, has been updated to version 9 for Lion compatibility, I’d suspect this is for a good reason.

If you are running 10.7 (Lion) and can’t wait (or don’t feel like investing into commercial software), you can setup a Linux virtual machine, mount your volume(s) there and share it / them via Samba or (S)FTP. This post has some details on how to achieve this using the free VirtualBox. Note this is not exactly a lightweight solution, even if using a prebuilt VirtualBox VM will spare you installing and configuring a Linux distro from scratch.

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