Boot camp: "The startup disk cannot be partitioned or restored to a single partition"

Hey guys,

Would really appreciate some help on this!

I used to successfully use bootcamp and have an extra partition so i could use Windows aswell, until my HD crashed and i had to take it to the Apple Hospital. When i got the computer back and restored my old backup Time Machine clone, i couldn't create a new partition for Windows. It doesn't let me get passed the first screen.


What happens is: I load up Boot Camp as usual, push Continue passed the Introduction screen, then i get a msg pop up that says:

The startup disk cannot be partitioned or restored to a single partition.

The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows.

Then i push Ok and it goes back to the BootCamp introduction screen. I.e. i can't get passed this msg.

I looked in Disk Utility and of course my internal HD already is Mac OS Extended (Journaled) so i have no idea why it isn't being recognised as one partition.


What do i have to do to be able to install windows on this computer without having to format my entire Mac and installing everything again? I really need the exact clone of what i have right now. I do have an external HD for making backup clones using Time Machine though.


Some specs:

- Boot Camp Assistant version is 3.0.1

- Mac OSX 10.6.2 (yeah i guess i'm old school now)

- 2.66 GHz Intel Core i5, 4 GB RAM

- I have no other partitions currently, just my current mac one


Any questions just ask. I would love to resolve this tonight.

iMac (27-inch Late 2009), iOS 6.1.2

Posted on Oct 8, 2014 4:05 AM

Reply
104 replies

Oct 9, 2014 8:46 AM in response to Barncore

1. I would recommend the TM backup and restore. You can let it run overnight, but watch for a few minutes for it to provide an estimate.

2. To erase and restore.

a. Connect you Mac to the TM device via ethernet or USB (as the case maybe).

b. Put the "grey" Restore Disk 1 (Install Mac OSX) into DVD drive.

c. Power-Cycle and select the DVD to boot from.

d. After DVD boots to a menu, run Disk Utility from the DVD, erase your internal drive, and format it as a Mac OS X Extended Journaled disk.

e. Click on Restore via TM backup and select the internal drive as the destination.

f. Wait for a few minutes to check if restore has started and you get an estimate of time.

3. The output of the GPT command is the GUID partition table on your disk.

4. The output of the Fdisk is your MBR (or Hybrid MBR). Windows legacy use a BIOS emulation layer called CSM-BIOS for discovering HW on the Mac.

Oct 9, 2014 9:13 AM in response to Loner T

Thanks for the very clear and concise instructions LonerT! I'm gonna have to buy you a proverbial beer soon. 🙂


I have my TM backup ready to go. I have my grey Mac OSX disc inserted. One query...

c. Power-Cycle and select the DVD to boot from.

What is power cycle? I see no option for that..... or is that lingo for something?

Oct 9, 2014 9:16 AM in response to Barncore

Barncore wrote:


Well i already have a Time Machine backup from earlier today so i might aswell use that, if the result is equal (only difference being some minor complication, right?).

Do either of you have a good link i can use as a guide for this clone and restore bizzo?

Also, is it something i can let run while my sleep? (i'm about to go to bed)

The only difference is in the procedure, the clone is made by plugging in an external drive and telling CCC to clone the internal drive to it ... time passes ... once the internal is erased you just boot up from the clone, run CCC again and clone the external back to the internal. That's it.


Both methods take long enough that you should do it overnight, and you should set your Mac not to go to sleep.

Oct 9, 2014 10:38 AM in response to Loner T

Quick and potentially dumb question...

d. After DVD boots to a menu, run Disk Utility from the DVD, erase your internal drive, and format it as a Mac OS X Extended Journaled disk.

When you say "internal drive", do you mean the parent drive called '1 TB APPLE HDD HUA72blablabla' (i assume so, but wanna be sure) or the one within it called Macintosh HD'

Also, is there a quick way to make sure my TM backup is secure/not corrupted?

Oct 9, 2014 11:13 AM in response to Barncore

Yes, you should erase the 1TB drive (not just the Macintosh HD). When you reformat it, it should put back the EFI stuff automatically.


If you want to very the TM backup, connect your TM drive, and looks for a file called backups.backupdb (it is a directory) and if you expand it, you should see entries by date, which should show individual files as you go deeper into the tree.

Oct 9, 2014 11:23 AM in response to Barncore

Since the disk will stay in the Mac and not be sold to someone else, there is no real need for any Security Options. You will be restoring from Backup anyway. Security Erase Options are useful if you do not want a forensic recovery attempt made on your internal drive. You can use FileVault2 (disk encryption) later, if you want to.

Oct 11, 2014 12:18 AM in response to Loner T

So after a little bit of messing around i re-formatted my HD, restored via TM, ran boot camp, and fiiiiinally successfully created a new partition for windows. But in typical nature, the universe decided to give me yet another hurdle to jump through: I began the windows setup process (i.e. i could successfully boot from windows CD), but couldn't get to install it, because when it came time to choose the partition, i get this error when i select the BOOTCAMP partition:

Windows cannot be installed to this hard disk space. Windows must be installed to a partition formatted as NTFS.

Now what do i do? What's causing this? How can i proceed?


Is it because i ran an old version of boot camp? If so, i can probably upgrade to 10.9 OSX now... because today my housemate gave me the install disk (lucky!)... i'm hesitant because i don't know what the risks are, but the option is there. Thoughts?

Oct 11, 2014 3:58 AM in response to Barncore

Barncore wrote:


Edit #2: I found my answer. Thanks

This part can be easily enhanced in Bootcamp Assistant in the future. The Apple NTFS driver can be made to convert the DOS partition that the Disk Utility creates, so this convert-DOS-to-NTFS-during-installation is not required. I have suggested this via Feedback as a feature, but the infinite wisdom at Infinite Loop has chosen this road.

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Boot camp: "The startup disk cannot be partitioned or restored to a single partition"

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