1

I have a two-disk NAS in RAID 1 that's not cooperating. I tried taking one of the disks out and plugging it into my iMac via a USB enclosure to copy the files off of it, but MacOS can't read the disk. I assume it's probably Ext3 or Ext4, some kind of Linux format. How can I get the files off of the disk?

1

Linux is very flexible when it comes to filesystem formats and disk setups.

The most common problem you will encounter is the most popular filesystem for Linux: ext4, which is of course not supported under macOS.

To gin access to these filesystems, you need either OSXFuse and a slow implementation or the commercial Paragon ExtFS.

A great many more exotic filesystem setups cannnot be dealt with from within macOS.

A more convoluted but more flexible solution method might involve either booting your Mac into Linux and copy the files or using a Vitual Machine that runs Linux to extrcat the files.

Virtual Box usually can handle USB (provided the settings are right) and most Linux installations in three as well (again: settings). The Linux installation needs support for the actual filesystem (mainstream distributions usually do.) Asthe RAID was 1 aka mirroring, one of the disks should then be readable.

  • Thanks! If I use virtual box with Ubuntu, will Ubuntu be able to mount the drive even though macOS can’t? – John Nov 12 '18 at 17:16
  • @John on VMWare, you can transfer the USB Disk control directly to the VM, I’ve never tried it on VirtualBox, but I assume there’s something similar. – At0mic Nov 12 '18 at 17:19

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .