| Error | Cause | Solution | |-------|-------|----------| | | USB too small or corrupted | Use 16GB+ USB; reformat GUID partition map | | "Operation not permitted" | Terminal missing Full Disk Access | Go to System Settings → Privacy & Security → Full Disk Access → add Terminal | | "createinstallmedia: command not found" | Wrong path to .app | Verify Install macOS.app is in /Applications | | DMG won’t mount | Damaged DMG | Re-download DMG; verify checksum | | Bootable USB not recognized | Wrong partition scheme | Use Disk Utility → Erase USB with GUID Partition Map + Mac OS Extended (Journaled) |
Keep that USB in a drawer. You'll thank yourself next Tuesday when the spinning beach ball never goes away. create mac os x bootable usb installer from dmg
The terminal will appear frozen. This is normal. dd does not show a progress bar. To see progress on newer macOS, press Ctrl + T . Wait for the command to finish (it may take 30–60 minutes). You will see a summary showing the number of records transferred. | Error | Cause | Solution | |-------|-------|----------|
Rating: 2/5 Stars
This website uses cookies.