Select the mounted Mac OS X Lion installer as the "Restore from" source and click . Method B: Using a Windows PC (TransMac)
What is running on the computer you are using to prepare the file?
Once finished, your USB drive is fully configured as a clean, fixed bootable drive ready to restore any compatible Intel-based Mac to OS X 10.7.2. Part 4: Technical Compatibility Check mac os x lion 1072 dmg file fixed
Mac OS X 10.7.2 was a critical update, bringing iCloud support to the Mac for the first time. Using a 10.7.2 "fixed" DMG ensures you have the necessary iCloud agent, which was essential for synchronizing bookmarks, documents, and Photo Stream, which was not available in the original 10.7.0 release. Important Considerations
If the installer fails from the main desktop, a known "fix" is to right-click the installer, select "Show Package Contents," and manually run the InstallESD.dmg found within the Contents/SharedSupport/ Corrupt Downloads: Select the mounted Mac OS X Lion installer
If you have tried all the Terminal commands and date resets, and Disk Utility still cannot verify the image, the file might have a damaged header. You can try conversion tools. For advanced users, converting the DMG to an ISO or IMG format using hdiutil commands can sometimes repair the block structure:
To perform a clean installation, convert the DMG file into a bootable USB flash drive (minimum 8 GB required). Prepare the USB Drive Insert your USB flash drive into the Mac. Open . Select your USB drive from the left sidebar. Click Erase . Part 4: Technical Compatibility Check Mac OS X 10
Select your newly formatted USB volume from the left menu. Click the Restore button located in the top menu bar.
The original DMG was fragmented or partially downloaded.