Macintosh HD not showing up

Question

Level 1

8 points

Macintosh HD not showing up

Good evening everyone,

I recently recovered a MacBook 12 "retina of 2016 of 256go, only problem (and not least), Mac os Yosemite installed on it does not start, the Apple logo appears, the loading bar advance then crash and bootloop (restarts without ceases without ever accessing the operating system).

By accessing the recovery, the disk utility detects only the "Mcos base system" partition (1 or 2 go no more) and no trace of the main SSD.

Even stranger, a boot by pressing the option key (which lets you choose the drive to boot from) displays "Macintosh HD"!

I have tried almost all existing keyboard combinations at startup but nothing works.

If any of you had an idea to save this poor MacBook in distress I would be so grateful !!

Regards,

Alexandre Ertault.

MacBook

Posted on Jun 26, 2019 3:09 PM

Reply

Answer 1

Kappy

Level 10

362,279 points

Jun 26, 2019 3:42 PM in response to MrBlead

Connect the computer to the charger.

Internet/Network Recovery of El Capitan or Later on a Clean Disk

Restart the computer. Immediately, at or before the chime, hold down the (Command-Option-Shift-R) keys until a globe appears.
The Utility Menu will appear in from 5-20 minutes. Be patient.
Select Disk Utility and click on the Continue button.
When Disk Utility loads select the target drive (will be the out-dented entry) from the side list.
Click on the Erase tab in Disk Utility's main window. A panel will drop down.
Set the partition scheme to GUID.
Set the Format type to APFS (SSDs only) or Mac OS Extended (Journaled.)
Click on the Apply button, then click on the Done button when it activates.
Quit Disk Utility and return to the Utility Menu.
Select Install OS X and click on the Continue button.