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This tip is BAD
Mac OS X hints REALLY needs a rating system. This is an extremely poor way of just doing the following:
This tip is BAD
This is a pretty bad hint--encrypted disk images have been around since 10.2 at least.
What I was expecting was that it would auto-mount the protected folder on login with a password stored in one's keychain. Although this hint didn't supply that, can you do that with a regular protected disk image?
This tip is BAD
Very simple: when you create the disk image make sure to check the box "store password in keychain". The drag'n drop the image (the file .sparseimage, not the virtual drive) in your Startup Items in the Account pane of the System Preferences.
Correction on sparseimage remark
The sparseimage size you pick is the MAXIMUM size it will expand to, not the size it starts out as. Sorry about the error...
Sparseimage may not work in every version of apples diskutility
I have tryed to create a sparse disk image with my version of the disk utility with Versionnumber: 10.4 (145) and OS X 10.3.2 and it is not possible! Small images dosn“t grow and if you create a image with 700 MB it has the size of 700 MB on the Harddrive.
sparse images fragment
One reason not to use sparse images is that they heavily fragment on your drive as they need to 'grow'. This isn't the case with Panther's file-vaulted home directories because when a user logs out the OS can automatically defragment and claim unused space in the file-vaulted image. I doubt this would happen if you follow this tip.
sparse images fragment
Is this true? Why wouldn't Mac OS X clean up the fragmented image once it was dismounted, like it will any other file?
sparse images fragment
defrag only works in Panther on files < 20MB in size. The idea is that a file of 20MB or less is probably going to fit into an available continuous block of space so the whole thing gets rewritten. Computers and drives are fast enough now that most people won't see the overhead from the extra work. |
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