Some Mac OS X 10.6 Users Report Difficulty Using .DMG Files

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Date: Thursday, October 1st, 2009, 03:17
Category: Software

snowleopard

As cool as Snow Leopard may be, if this issue happens, you’re going to notice it:

Per CNET, a number of users are experiencing issues concerning Mac OS X 10.6 Snow Leopard’s handling of .dmg files. Since upgrading to Snow Leopard these users are not able to mount the files or run packages stored in them.

Over on the Apple Support Discussions web site user “Logan G” described the following:

“Since upgrading to Snow Leopard, I cannot get any downloaded .dmg files to do anything. After downloading them, I double click on them and nothing happens. Nothing. No error message. No bouncing dock icons. Nothing. I’ve tried downloading them using Firefox and Safari with the same results. This is happening with all .dmg files, not just the same ones, so I know it’s not unique to a particular .dmg file.”

Several suggestions are made regarding a fix for this issue, although none seem to permanently solve the problem. First, check to be sure your Disk Image files are set to open with the correct program–in this case, DiskImageMounter. To check, highlight a disk image file and press (Command + I) to Get Info. In the Open with: section, if DiskImageMounter is not selected, choose it and click “Change All…”

Users can also try deleting the following files:
Home > Library > Preferences > com.apple.frameworks.diskimages.uiagent
Home > Library > Preferences > com.apple.diskimages.fsck

From here, log out, log back in again or restart your Mac. This appears to be a temporary fix only and a long term solution has yet to be discovered and reported back. If you’ve seen this on your end or, better yet, found a fix, let us know!!!

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