How do I fix my hard drive locked when reinstalling OS X?
2 Answers
- Select Disk Utility from the utilities window of macOS Recovery, then click Continue.
- Select your harddrive in the sidebar.
- Click the Erase button (MAKE SURE YOU DO HAVE BACKUP)
- Format: Choose Mac OS Extended (Journaled)
- Scheme: Choose GUID Partition Map.
- Go back to the OS X installation guide.
Can a Macintosh HD be restored to OS X base?
I need to restore my old “Macintosh HD” to /dev/disk0 instead of only seeing the OS X Base System. Trawling through online forums, people have had this sort of problem when there’s a HDD failure or a cable problem, but mine is a direct result of restoring the OS X Base System over the primary internal drive.
Is there a way to reinstall OS X after erase?
If the newer OS X version is blocking you from using the Install Disc, then you will need to startup in Recovery and use Disk Utility to erase the drive. see > How to reinstall macOS – Apple Support You need to install the original OS X that is on the install disc and let the new owner update with their Apple id.
How can I restore my MacBook to its base system?
• under internal where it says OS X base System, click erase • make sure the format is Max OS Extended (Journaled) • Enter Reinstall MacOS Sierra or Reinstall OS X • Then Select the Macintosh HD drive • finally your MacBook should be back to normal and good as new. The OS X Base system should be a disk image a little over 2 GB in size.
Why is my OS X not backing up?
Trawling through online forums, people have had this sort of problem when there’s a HDD failure or a cable problem, but mine is a direct result of restoring the OS X Base System over the primary internal drive. When I try to erase the “APPLE SSD” thing it says: “Erase Process has failed.” and the details say: Couldn’t unmount disk.