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How to get read/write permission on encrypted disk image


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jimshabadoo

 
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I recently bought a Macbook Pro and am having some difficulty figuring out permissions on an encrypted disk image. Here's my situation:

1. I partitioned an external hard drive into two parts: one is Mac OS Extended (Journaled), the other is FAT (for Windows stuff).
2. I created a password protected disk image on the Mac partition of the external hard drive and put private files in there.
3. After the disk image is mounted, I can access the files with no problem, but I can't delete them or move them around within the disk image or add additional files to the disk image.

When I check the info, it says I only have read permission and I don't see a way to change that. My question: is this disk image "fixed"? In other words, am I forever prevented from modifying anything within the encrypted disk image?

Thanks for your help!
A new Mac user
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chscag

 
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By nature Disk Images are read only. Same as if you were trying to add files to an *.ISO, no can do. Don't use an image to store the encrypted files. If you need to protect the files, use an encryption program instead.

Try "Truecrypt" since it's free.

Regards.
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jimshabadoo

 
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Ah - thanks for the advice. I'll give it a shot.
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technologist

 
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Originally Posted by chscag View Post
By nature Disk Images are read only.
No. The default .dmg format is read/write.
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Same as if you were trying to add files to an *.ISO, no can do.
Sure you can. Not sure if Disk Utility or the Finder alone can do it, but it's absolutely possible.

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Don't use an image to store the encrypted files.
By all means, use encrypted images to store files securely, so long as you intend to access them only from other Macs.

I would try starting over with a new .dmg first.
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