What are the partition schemes on the different disks? Open Disk Utility and
click on the drive (not the named volume within that drive), should say at the
bottom of the window what the partition scheme is.
Regards
Sam
MacAmbulance Ltd.
Providing Affordable Mac/PC Support and Web Development
Sam Mullen ACMT
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On 2 Aug 2014, at 08:26, Andrew Tett <[email protected]> wrote:
> Here is a problem that I have asked about before, but I can't believe that I
> am the only one to have experienced it:
>
> I have available both personally and for work use a selection of Mac laptops.
> I have old G4s running 10.3 and 10.4 and at work we use Intel Mac laptops
> running 10.7 and 10.8. My daughter even has one with 10.9.
>
> For work I have access to USB Hard Disks (around a terrabite in size) and the
> ones that have been Mac HFS formatted in my 10.7 machine are perfectly
> readable in that OS and older but completely unvisible in 10.8 and 10.9. I
> can read all disks formatted in the 10.8 + machines on everything.
>
> What changed with 10.8 onwards that means this is apparently so? They all
> come up as Mac HFS Journalled when I look at them on the machines that they
> are able to be read on, so there appears to be no difference between them.
>
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