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I am having an issue with my iMac. It is a late 2013 model with a 3 TB fusion drive. While trying to remove and start over on a windows bootcamp partition, there was a crash on the windows side and now I can not remove the partitions or run bootcamp.
I have tried running all the terminal commands in all the different threads I could find.
iMac (27-inch, Late 2013), OS X Yosemite (10.10)
Ok I think I am getting really close. Might even be close enough to try installing windows again. After doing this I got the following results. Running bootcamp it then was able to start the restore and successfully removed the bootcamp partition. I have not started the new bootcamp yet because I still have 2 Macintosh HD partitions and it says the full size of the fusion drive is not available for repartitioning. Is there another step I should take to merge those back into one? By the way I really do appreciate the reference to the commands. I am going to print all of this when we are done so I will understand what is going on and how to work with it if this ever happens again.
Jamess-iMac:~ jamesrobertson$ diskutil eraseVolume fat32 BOOTCAMP disk0s4
Started erase on disk0s4 Untitled
Unmounting disk
Erasing
4096 bytes per physical sector
/dev/rdisk0s4: 1011209024 sectors in 15800141 FAT32 clusters (32768 bytes/cluster)
bps=512 spc=64 res=32 nft=2 mid=0xf8 spt=32 hds=255 hid=3283247104 drv=0x80 bsec=1011455992 bspf=123440 rdcl=2 infs=1 bkbs=6
Mounting disk
Finished erase on disk0s4 BOOTCAMP
A MBR can be created using what is now the configuration, to allow Windows to be installed. Are you installing W7 or W8/8.1?
You have two entries named "Macintosh HD" but not two OSX installations. One is a Logical Volume Group, the other is an Logical Volume.
Disk Utility shows it as "Macintosh HD" under a 'Macintosh HD". It is rather unfortunate that Apple's default is to name both of them the same confusing the person behind the keyboard.
+-- Logical Volume Group F7493DDD-725F-4A2A-A5BD-782C14AAAC76
=========================================================
Name: Macintosh HD
LV Name: Macintosh HD
Volume Name: Macintosh HD
Thanks that got me back up and running.
Initially I used Windows 8.1, but after issues with that crashing do to the wireless drivers that I could not upgrade I decided to drop down to win 7. That was when all of these issues started. Now I see win 7 does not support usb 3 without a lot of work so I might try the win 8 install again and see if it crashes again.
Thanks for all the help.
Jimmy
If you can get W7 installed, the Apple Bootcamp and Intel drivers will support USB3, as long as the hardware does.
Thanks that got me back up and running.
Does this mean you have W7/W8 already installed?
I did get Win 7 to install yesterday and all updates in and backups done with no problems. I am fully up and running again thanks to all your help. Thanks again for the help and the references for what everything is.
Jimmy
Glad to see it work. Thanks for posting back and providing an update. 😎
Repairing bootcamp core storage issue
