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Can't move 7gb .dmg file - need help fast

N

npriess

macrumors regular
Original poster
Tomorrow TNT will pick up my macbook pro - a replacement is on the way.

But I have to backup a 7gb .dmg file to an external drive.

But i fails (error 0)

What should I do? I have tried with different drives, but same problem occurs.
 
Sounds like your backup drive is formatted as FAT32 (MS-DOS) which means the individual maximum file size is 4GB's.

What is in the DMG? You could try slipping it up into 150 .RAR files.
 
It contains a program installation package.

And yes, my drive is formatted in FAT. Can I format in Mac OS (journaled) and still transfer the files to a windows pc?
 
Well, if you reformat the drive you'd loose all the data on it. But if you formatted it to HFS+ then yes, the 7GB file would go on.

There is software that allows Windows to read the HFS+ file system (MacDrive $50 though).
 
npriess said:
It contains a program installation package.

And yes, my drive is formatted in FAT. Can I format in Mac OS (journaled) and still transfer the files to a windows pc?
Click to expand...

If you have the app called MacDrive, so windows can access the drives, as MS doesn't bother to give windows users drivers to access mac formatted drivers, then yes windows will recognise it.

If the windows PC is formatted in NTFS then yes, you can then transfer it onto the windows PCs drive.
 
So, (correct me if I'm wrong) NTFS would be the best format to choose?

It works with both Mac OS and Windows?

But I guess the mac file format has some other advantages then?
 
npriess said:
So, (correct me if I'm wrong) NTFS would be the best format to choose?

It works with both Mac OS and Windows?

But I guess the mac file format has some other advantages then?
Click to expand...

NTFS would be excellent, but Mac OS can't write to it, it can only read.
 
If you don't want to reformat your drive, you can always split the dmg file into "chunks", and then when you want to put it back together into a full dmg file again, you can concatenate the file back together. Here's a program to do it with:

http://www.xs4all.nl/~loekjehe/Split&Concat/

Free, and works like a charm. Since you have a 7GB file, just split it into 1000MB chunks, so you'll have seven 1GB files. This may solve your problem moving it to a FAT partition, since FAT only supports up to 4GB file sizes.
 
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