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Chris-Moore
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Cannot resize partition Mac OSX Lion drive after cloning

I had a drive error on my Macbook Pro's 500Gb drive so took the opportunity to clone the drive to a new 1Tb drive so I could max out the drive.

The cloned partition works well but I cannot expand it past the original 500Gb.

I have tried using Disk Utility and when expanding the partition it looks like it completes then it resets the partition size back.

I have tried offline via another Lion startup disk and a USB key and cannot expand the partition either.

Any ideas as to how I can expand the partition past the 500Gb and use the whole drive?

I have run Fix Permissions and the Disk check/repair but this has not helped either.

Any advice would gratefully received!
Mac OS X

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Chris-Moore

8/22/2022 - Mon
rindi

Not being a MAC guy, I don't know about this, but on m$ Systems there are sometimes similar issues if you expand to use the entire drive, and when you leave a small amount untouched it works. Maybe it is similar with Lion. Have you tried expanding the disk so that there is still some small untouched space left (on windows I usually leave about 10MB...)?
Chris-Moore

ASKER
Yup, know about the MS issue - am a PC guy normally so this Mac is a challenge - Partition Magic or EASEUS Partition Manager would have done this in a heartbeat!!!

Tried different sizes on the Macbook but no luck.

Thanks for the response though!
strung

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Chris-Moore

ASKER
Thanks Strung - done this and it goes through the motions like it is working and then the partition resets back to 500Gb.
strung

It's not encrypted by any chance?
strung

You may have to wipe the drive, repartition, then re-clone.
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Chris-Moore

ASKER
Not encrypted.

The clone was done via a hardware device.  If the drive is wiped and repartitioned it would end up with the same 500Gb cloned drive/partition.
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strung

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strung

If you partition to the full terrabyte using Disk Utility, then clone with CCC, it will not change the partition size.
strung

I have done this many, many times when I upgraded drives.  CCC will clone from the boot drive while booted. (Good idea to boot in safe mode, though, and don't open any files or apps.)
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Chris-Moore

ASKER
The hardware clone it a bit copy of the drive so it 100% the same format/drive structure.

I will need to clone the existing to another drive and then reformat/partition the 1Tb drive and try again.......I will report back.

Are the special options I should be using with CCC as I am not too familiar with the tool and does it hav any issues with Lion compatibility?

Thanks for your advice so far.
strung

Works fine. No special issues. Just make sure it is set to make the target drive bootable.

You can clone directly from the existing drive to the terabyte drive, by the way.
Chris-Moore

ASKER
Planning on trying over the weekend so will report back!
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