Tag: unmount
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If a /dev/diskX can’t be force unmounted…
As a sequel to Fix for disk erase failed couldn’t unmount disk, if you really cannot even force unmount a disk, chances are it’s being used by some process. I found this tip helpful to locate the process (and then kill it). You may want to give it a try if you can’t force unmount…
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Fix for disk erase failed couldn’t unmount disk
If you’re trying on a Mac using Disk Utility to erase a hard drive and it won’t unmount, giving you an error similar to Disk erase failed. Couldn’t unmount disk, then you may have to force an unmount through the terminal. Launch up Terminal.app (through /Applications/Utilities or through a Spotlight search). Then paste in the…