13:30:57.030 hdiutil DIHLDiskImageAttach: creating DIHelperProxy Jeffs-MacBook-Pro:~ Jeff$ hdid /Users/Jeff/Jeff\ Projects.dmg -nomount -verbose -debug I'm relatively technical, and once I understand what I'm looking for I can try to fix the others. I have a few other files like this and would really like to recover those as well. I would really like to repair this file, so just in case someone who knows how to fix this sort of thing, I've shared the file here. I have read on one of these forums (I can't seem to find it anymore) that someone had a similar issue and someone helped them through a lot of digging around in the broken file (something to do with headers?).and in the end they managed to repair the broken DMG file. Repair in File Salvage (this actually recovered a single mp3 file, so this makes me think the data is still there) converting the DMG in Disk Utility to a R/W image. I have tried the following with no success. When I try, I get this error.'No Mountable File Systems'.
Hello, I have an important backup DMG file that I can't mount. Corrupt DMG file - 'No Mountable File Systems'