Updating boot support partitions as required Xxx chating hind girls
The above steps did the trick and everything was working again as expected.
This is a good example of why it’s very valuable to have a bootable USB thumb drive set up with whatever version of OS X is running on your Macs, because without a separate boot drive some of these errors would be unresolvable.
Disk Utility usually works trouble-free, but a frustrating “Couldn’t Unmount Disk” error can halt whatever the attempted task is right in its tracks.
This can happen during partitioning, disk verification and repair, and even during formatting, and there’s usually little to no additional information provided as to how to resolve the problem or even what the problem is.
An external HDD of mine is showing as ‘Untitled’ everywhere from Devices to the ‘top’ of the computer [Command - Shift - C]. It’s a Freecom 56068 3TB Quattro e SATA/Fire Wire800/USB 3.0 3.5 Inch Drive [one of three]. Now there's no sign of them [I'm guessing they're still there, just unrecognized because of the technical hiccup that resulted in renaming the disk 'Untitled']. As I said in the OP it's a 3TB disk and it's telling me 3TB are available when there should be only around 270GB.
It gives available space as '3TB' when there is actually only about 270 GB left. Can anyone tell me what's happened and whether it can be salvaged? I'll try your suggestion then and come back to you in the next 24 hours. It sounds like something in the drive has gotten scrambled a bit. If I click on the volume in Devices I just get a blank Finder window.
For older Macs running prior versions of OS X, typically anything running OS X 10.6 or earlier will have a Super Drive, and thus shipped with a bootable DVD that can serve this same purpose.If the Unable to Unmount Error is triggered by first aid or formatting a non-boot partition, you may be able to fix the error by booting from the Recovery partition that is included with all new versions of OS X.This will Again, if the disk throwing the errors is the same as the primary boot partition that Recovery is also on, the above method may not work to resolve the problem. 2.7 TB of films, software and text documents were there a few hours ago. What happens if you click on the name "Untitled" (on the HD icon on the desktop)…and change it? I’ve changed the setting but it made no difference. If I click on the volume in Devices I just get a blank Finder window.