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Rob1980

macrumors member
Original poster
Hi Please can someone help I am trying to partition my 250GB external USB drive so i can get time machine up and running but i keep getting a error i have attached a couple of snaps for people to help.
 

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I assume that the external is formatted HFS+ and that you have tried repairing the permissions and the disk
 
yah i've had that same message before when i tried to partition my external 320 hdd, i just totally erased my ext. hdd and restarted my computer and everything was fine,

even though this problem has happened a few times with different drives i just erase and restart (sometimes a few times) and everything works fine (fingers crossed 😀)
 
yah i've had that same message before when i tried to partition my external 320 hdd, i just totally erased my ext. hdd and restarted my computer and everything was fine,

even though this problem has happened a few times with different drives i just erase and restart (sometimes a few times) and everything works fine (fingers crossed 😀)

Thanks i will try that tonight. Just means i have to move 100Gbish to my other external which will take ages🙁
 
Disk Utility doesn't re-partition on the fly. You will have to copy the existing data off, erase it, repartition it, and then copy the data back. Or pay for a 3rd party partitioner.
 
Oh i thought that 10.5 could "partition on the fly". Will move the data, earse and try again tonight. Still at work🙁
 
Oh i thought that 10.5 could "partition on the fly". Will move the data, earse and try again tonight. Still at work🙁

<= 10.4.x could not.

I'm not sure if 10.5.x allows for this. Let me check.

There seems to be a lot of thought that you should be able to do this, but even more posts about how it doesn't work. I think it'll just be safer to do it the old fashioned way.
 
An hour to go this is slower than i thought LOL
 

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