Disk Utility erase tab for hard disk is missing after accidental OS deletion when installing Win 8.1 (BootCamp)
Hi there everyone,
This is my first post and I hope I can get this issue resolved with your help .
So the issue that I am having is that my Disk Utility is not showing giving me the option to reformat my entire hard drive.
The reason I want to this is because my Boot Camp Assistant won't partition my drive. This error comes up:
So after looking through the internet and forums i couldn't resolve this Boot Camp issue. So I decided to try and just wipe out my whole disk but as you can see I am unable to do that.
Prior to this issue, I had tried to download Windows 8.1 using a bootable USB stick and have accidentally deleted my Macintosh HD partition from the Windows install menu by opening up a terminal (fn+option+F10 was the key used to open up this terminal if I remember correctly). I was pretty upset about that, thankfully I have a backup around. Not knowing what to do I proceeded to installing Windows 8.1 anyway. Half way through the installation there was an error which I did not record. I simply exited the installer and proceeded to the Recovery System start up menu and it installed a version of OS X Lion from the internet. Then I installed Yosemite thinking everything is OK.
I decided to try to install Windows 7 now and the issue mentioned at the beginning ensued. Previously there was a disk0s1 and disk0s2 that can be seen from the Disk Utility but I could delete one of them. The other one I could only erase but could not delete the partition itself. From terminal i determined these two partitions were from the previous Windows installation attempt. The size was relatively small for both.
I ran a disk repair for the Macintosh HD volume and this error pops up:
I am using MacBook Pro (15-inch, early 2011) with:
2.2 GHz Intel Core i7
4 GB 1333 MHz DDR3
Intel HD Graphic 3000
750.16 GB TOSHIBA MK7559GSXF (SATA)
Yosemite V10.10.1
Below are the drive info from terminal:
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *750.2 GB disk0
1: Apple_HFS disk0s1 314.6 MB disk0s1
2: EFI EFI 209.7 MB disk0s2
3: Apple_CoreStorage 748.7 GB disk0s3
4: Apple_Boot Recovery HD 650.0 MB disk0s4
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *748.4 GB disk1
Logical Volume on disk0s3
C0E588EC-8B91-43D2-8493-392DB9911387
Unencrypted
and
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group CF5FCF1D-64F3-4F5C-8A32-583BDF73FA2A
=========================================================
Name: Macintosh HD
Status: Online
Size: 748741939200 B (748.7 GB)
Free Space: 18960384 B (19.0 MB)
|
+-< Physical Volume 79D6A32D-71A9-479B-82AF-E287ABF820E9
| ----------------------------------------------------
| Index: 0
| Disk: disk0s3
| Status: Online
| Size: 748741939200 B (748.7 GB)
|
+-> Logical Volume Family 5A69641B-025B-438B-A572-AE008B8138B0
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume C0E588EC-8B91-43D2-8493-392DB9911387
Disk: disk1
Status: Online
Size (Total): 748370657280 B (748.4 GB)
Conversion Progress: -none-
Revertible: Yes (no decryption required)
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
I hope someone out there can help me out here. I have tried all I could to no avail. Looking forward to your replies
Cheers
Please boot into Internet Recovery (Command+Opt+R) and ensure you see the spinning globe. If you do, you can use diskutil cs commands to initialize your disk and re-install/restore from a TM backup.
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