Copy good, image bad.

[MMM]

We just tried to make a smart copy and image. It made the copy OK, but then it couldn't find it and failed making the image. Here is from the log:


| 10:51:31 PM | Info | created: /Volumes/Storage/OS X Backup Image.sparseimage.dmg
| 10:51:31 PM | Info | ......COMMAND => Changing permissions for /Volumes/Storage/OS X Backup Image.sparseimage to group read and write
| 10:51:31 PM | Error | chmod: /Volumes/Storage/OS X Backup Image.sparseimage: No such file or directory

What would cause this?

[MMM]

We also tried to manually make a disk image, both times didn't work. The first time it froze up after 3 hours. The second time it said that there was no space on the hard drive, even though there was well over 60 gigs available.

[dnanian]

Hi, MMM. You tried to create an image of your image? I'm confused -- please send the entire log into the support email address, and I'll take a look.

[MMM]

No, we set it to make a backup (which it did) and then after it was done with that it was to make an image (Options > Advanced > Create Image of Back up). We'll send you the log file.

[MMM]

We made the partition bigger, and that 'seems' to have fixed it.

We did have one more question thought, what is the difference between a

Backup Image.sparseimage

and a

Backup Image.sparseimage.dmg.

It appears to making both. Do we need them both?

[dnanian]

A sparse image is a read/write image that only takes up about as much space as the data.

A DMG is a read-only image that can't be updated once created.

When we create a DMG, we start with a sparse image, then convert that to read-only. That ensures it's as small as possible.