Mac mini (Mid 2011) Symptom Charts — Mass Storage 57
2011-07-21
Mass Storage
Internal Drive(s) Not Recognized
Unlikely cause: power supply, AirPort/Bluetooth card, fan, speaker
Quick Check
Symptoms Quick Check
Drive Is Not Recognized
Drive Does Not Boot
• Flashing Question Mark
• Boots to Grey Screen
• Boots to Blue Screen
1. Use a known good mouse. A stuck mouse button
will not allow boot.
2. Start up from known-good original system media
or an up-to-date, bootable OS X volume like:
-the same Mac mini model connected and setup
in Target Disk Mode,
-a compatible known-good up-to date Mac OS X
installed on an external drive,
-by pressing the Cmd-R keyboard keys while
restarting, to access the Mac OS X Utilities
available from Recovery HD.
Note: The computer may need to be connected
to a network with Internet access.
3. Verify S.M.A.R.T. status of drive using Disk Utility.
4. Repair disk using Disk Utility.
5. Erase disk and reinstall Mac OS. Note: Make sure
data has been backed up before erasing internal
drive.
Deep Dive
Check Result Action Code
1. Start up from known-good
original system media or an up-
to-date, bootable OS X volume
Verify that user internal drive
is available for Disk Utility to
repair.
Yes Go to step 2
No Go to step 5
2. Run Disk Utility ‘Repair Disk’
function and verify that it
completes successfully.
Yes Go to step 3
No Go to step 4
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