Boot Camp keeps stopping at partition step

Hi guys,
I'm trying to run windows on my iMac 27" (Mid 2010) running 10.7.3 and everytime I get to the partioning step, I choose how much I want to dedicate to windows and it will run for a few minutes and then say "Back up the disk and use Disk Utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again." I'm not really sure as to why this is happening, from what I've read it's because I need to defrag my comp (still fuzzy as to what that means) which I can do either with software or restoring my computer from a back up on my external hard drive. If I need to restore, how long do you think it would take (I have 463.97 GB used)?
Any other tips or advice would be greatly appreciated, I want to get windows running asap!
Thanks

No. This issue is dicussed here frequently. The only option is to be patient and try often. Search this forum for other posts about this issue.

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HT4407 Is there any way to download these files manually from another source? The download from boot camp keeps stopping at around 25% and then produces the error "Can't download Windows Support Software because of a network problem". Thx!

Is there any way to download these files manually from another source? The download from boot camp keeps stopping at around 25% and then produces the error "Can't download Windows Support Software because of a network problem". Thx!

No. This issue is dicussed here frequently. The only option is to be patient and try often. Search this forum for other posts about this issue.

Boot Camp 5 Windows 8 partition

So I haven't dual-booted in a while, I used to run Windows 7 Ultimate. Boot Camp worked fine. I recently have been trying to install Windows 8 Pro and Boot Camp just will not partition my drive. It keeps saying "An error occurred while partitioning the disk". I've tried it both with a bootable 8GB USB plugged in and an install DVD. I'm giving Windows 45GB and that leaves OS X with 101GB. What am I doing wrong? It's a MacBook Pro 13 inch, Early 2011, 500GB HDD, 8GB RAM, etc. etc.

Hi Paresh,
Yes, they are related...
EFI and SMC firmware updates for Intel-based Macs - Apple Support

Boot Camp fails to create partition

Hello,
I've tried to partition my hard drive (unsuccessfully) several times. Boot Camp keeps failing with a "files cannot be moved" error (which shows up at the very end of a lengthy "partitioning" process). I've tried several partition sizes, ranging from 10 to 40 GB. I followed the suggestion to reinstall OS X (formatted the disk when doing so). I restored my files using Time Machine. Again, same error shows up.
I've tried disk utility's repair and everything is OK. Fsck'ing when booting in single user command line mode agrees that everything in the disk is OK. Not sure what else to try.
I should probably point out that when I had 10.4, I did manage to partition the drive and install Windows XP (that was over a year ago). I later deleted that partition and made a fresh 10.5 install.

i have this exact same problem. look at my thread <http://discussions.apple.com/thread.jspa?threadID=1604527&tstart=0> and someone gave me a solution that i have yet to try still.

How to install boot camp on a pre-partitioned HD ?

Hi,
I have just done a clean install of my mac. Before installation i used disk utility to create a few partitions, one of them made available for Boot Camp.
Now when i start the Boot Camp Assistant it tells me:
"The startup disk can not 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"
What the h.... do i really have to start over AGAIN?!
I need 3 mac partitions and 1 windows, if i re-install, then use boot camp assistant to create a windows partition i'll be left with just 2 partitions.....
Any help is very welcome at this point.
Jay

You don't need to run Boot Camp Assistant since you've already partitioned the drive. Just boot to your Windows disc and follow the installer set up. All Boot Camp Assistant does is partition the drive for you.
However, I'm pretty certain with that many partitions, depending on the order in which you've placed them, you will run into some errors trying to install Windows on the Windows partition you've created. I believe the Windows installer doesn't like to install on anything higher than partition 4. If your Windows partition is #3, and your Mac OS partition is #2, you may still encounter an error, but this has a far easier workaround than having the Windows partition be higher than partition #4.
Let me know how you've set it up.

Boot Camp Is Unable to Partition My Drive

Hello,
The first time around I managed to set up Boot Camp and Windows 7 Home Basic very successfully and effortlessly on my MBP mid-2012.
Then I found out I could not get activation key for it because Microsoft no longer sold the Basic version. I downloaded the Windows 7 Home Premium version and bought an activation key from Microsoft and am now trying to get it on my computer.
Using Boot Camp Assistant I was able to delete the partition on which old Windows resided. Then using Boot Camp Assistant I built a USB drive that included the new ISO for the Windows 7 Home Premium edition and then the process went well and all necessary support files were downloaded.
We got to the point where I selected the size of the partition and Boot Camp Assistant tried to partition it except that it is not able to. It doesn't giver any reason, it just says: "Your disc could not be partitioned. An error occurred while partitioning the disk."
Anyone here knows what could be the cause of the problem and possibly how I can resolve it?
By the way, I have checked and the base format of the drive is Mac OS Extended (Journaled), and the disk has only one partition.
Thanks much.
Farzad

I am doing a TM backup now. I looked at the iDefrag and the drive definitely needs defragmenting, according to the software, but I thought with Macs we don't need to worry about those things. I want to do one other thing I read somewhere else as a remedy for this inability to partition the drive before taking the leap and doing the full erase and reinstall.
Here is the link on the internet: http://crounji.wordpress.com/2014/01/28/a-solution-to-your-disk-could-not-be-par titioned-error-on-boot-camp-assistant/.
And I believe another forum has discussed this topic.
Here is another approach I want to try: Boot Camp: Partition alert message when using Boot Camp Assistant
Farzad

Repairing Boot Camp after creating new partition

I'm running OS X 10.8 and Windows 7 x64 Pro.
After properly setting up Boot Camp to dual-boot Windows on my Mac mini, I decided to test whether or not it was true that creating another partition (a data partition for OS X) would interfere with Boot Camp. Wikipedia claims it does interfere but without citing a source, whilst the Boot Camp documentation itself only specifies that the disk must be a single partition _prior_ to setup - there's no mention of whether the disk must be _kept_ that way afterwards.
I opened Disk Utility, reduced the size of my OS X parition from 420GB to 80GB, and created a new partition in the unallocated space. Here's how it looks now:
When I attempted to proceed with the process, I did receive a warning that doing this (and I quote), "may" cause problems with Boot Camp. Seeing as it was inconclusive, I thought I'd give it a shot - nothing ventured…
Of course, it borked Boot Camp, otherwise I wouldn't be posting here. Whilst OS X boots just fine, the Boot Camp partition now no longer shows up in the Startup Manager, though it does in the Startup Disk prefPane. If I do attempt to boot into Boot Camp, I receive the following message on a black screen:
No bootable device --- insert boot disk and press any key
The advice given to someone who had this same problem was, "fix your damaged Boot Camp volume." But I'm at a loss as to how to do that.
So, anyone know how to proceed now so that I can keep my partitions as is, whilst fully restoring normal Boot Camp functionality?

Hi,
@Christopher Murphy:
Okay, you seem confident. Let's give this a shot. I use the command-line myself for the odd thing, so I'll try not to bail.
Results of the "sudo gpt -r -vv show disk0" command:
gpt show: disk0: mediasize=500107862016; sectorsize=512; blocks=976773168
gpt show: disk0: PMBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 976773167
      start       size index contents
          0          1         PMBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1 GPT part - REDACTED UUID
     409640 156303528      2 GPT part - REDACTED UUID
156713168    1269536      3 GPT part - REDACTED UUID
157982704 659841040      4 GPT part - REDACTED UUID
817823744     262144
818085888 158687232      5 GPT part - REDACTED UUID
976773120         15
976773135         32         Sec GPT table
976773167          1         Sec GPT header
Results of the "sudo fdisk /dev/disk0" command:
Disk: /dev/disk0          geometry: 60801/255/63 [976773168 sectors]
         Starting       EndingSignature: 0xAA55
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 - 976773167] <Unknown ID>
2: 00    0   0   0 -    0   0   0 [         0 -          0] unused
3: 00    0   0   0 -    0   0   0 [         0 -          0] unused
4: 00    0   0   0 -    0   0   0 [         0 -          0] unused
Does this indicate a fix is possible?

Boot Camp Assistant crashes when partitioning drive (exception: EXC_BAD_ACCESS)

I run Mountain Lion, a fresh install, brand new Macbook Pro. HD: Samsung 840 Pro 512 GB SSD.
When trying to go through Boot Camp Assistant / Setup it works fine until it wants to repartition my drive. It then quits unexpectedly and returns these errors:
Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x000000000000003c
Everything else on this new machine works like a charm. I checked permissions, verified the disk - no issues whatsoever.
Can anyone help me out with this?

I had the same problem, so I decided the system had too much going on. I stopped Time Machine and unmounted the disc, then I closed every other running program except Boot Camp, disconnected all unnecessary devices, selected the partition size and then didn't touch a thing, just went and made a cup of coffee. When I came back it had started and eventually partitioned fine.

Boot camp - Disc cannot be partitioned....

I am trying to install boot camp but can't seem to get past the screen dealing w/partitions. When on the screen that shows Mac OSX 106 GB 87 GB free, Windows XP 5GB...I chose the 32GB and partition. Then I keep getting the "Disc cannot be partitioned because verification failed. Use Disk Utility to repair this disc. Then, when I go to Disk Utility, it is "greyed out" and I cannot select it. HELP! I need Windows to run a program asap. Thanks!

Hi Kimberly!
Try posting your question in the Boot Camp forum <http://discussions.apple.com/forum.jspa?forumID=1165>.
Good luck! bill
1 GHz Powerbook G4 Mac OS X (10.4.8)

Boot Camp Assistant hangs at partitioning process?

Hello,
I'm trying to install Windows on my Mac Pro. But when I run the Boot Camp assistant and assign the Windows partition, the Boot Camp Assistant hangs at the process of partitioning. The progress bar just keeps on moving, but it wont finish the partitioning.
Screencap link: www.laspalmas.nu/hang.jpg
Sorry, the OS language is in finnish but "Osioidaan levyä..." = "Disk partitioning..."
Does anyone have advice, why does this endless hang happen at this point?
Thanks for the replies,
Lauri

BACKUP before you start.
Repair your drive.
Would help to know how much of the free space is actually in a large enough unfragmented single chunk.
You may need to backup / initialize / restore.

Boot Camp Assistant: Can't Partition Drive

I've been trying to partition my hard drive using the Boot Camp Assistant so I can install Windows XP. However, whenever I try to partition the drive, I get an error message saying that my hard drive needs to be a single Mac OS Extended (Journaled) volume. I opened up Disk Utility to see what was wrong, and it said that my only hard drive, Macintosh HD, was formatted as a Mac OS Extended (Journaled) volume. I tried bumping the partition size down from 15 gigs to 12 gigs; the progress bar was a little under 25% full when I got the error message again. I'm planning on arranging to get support at an Apple Store, but I wanted to see if anybody on here knew what to do first. Any ideas?

JadeH wrote:
okay so i did what you said and i selected restart under superduper clone so i could test to make sure the clone worked...but now i can't get it to restart under my Macintosh HD. the clone works fine but it is on my external hard drive. i need y internal hard drive to be my start up disk so i can use boot camp assistant. i went to system preferences->startup disk but it only shows my clone on my external hard drive. any suggestions?
When you tested the clone, did you change the default boot to the clone? You should have simply booted by holding down the Option key.
I don't know what happened to your HD or original OS, but if you reboot and hold down the option key, your original OS should show up in the selection menu.
If not, boot into the Leopard DVD (press "C" key during boot) and after the language screen, in the menu, top left under Utilities select disk utility and run it, repairing HD and permissions. Then see if you can reboot into the original OS. You may have to hold down Option key again until you boot it and change the default back to the original OS.

Boot Camp Error "You cannot partition an external disk drive"

Hi all - I am trying to install Windows XP Pro via Boot Camp for the first time. I have all four bays of my MacPro (circa 2007) filled with hard drives. I boot off the first bay, and have a cal digit raid card that controls the other three hard drives into a RAID5 array. I believe that the raid card may be the culprit.
I am trying to install boot camp/WinXP on the first drive. I get the error in the title above when I try to run Boot Camp. I have ejected the RAID5, and I have rebooted to no avail.
I cannot wipe my first drive/boot drive clean. I just wish to partition it via BC so I can switch between XP and Mac OSX. Any guidance is appreciated.
Thanks.
Tri

Try removing the other drives is almost always essential with a Mac Pro to get Windows to work. Even Windows 7 doesn't understand seeing Apple GPT/EFI during install - they can be reinstalled later.
Or it could be that any hardware RAID controller also has to be removed. Like Apple's Pro RAID or ATTO FC.
Even w/o the CalDigit and just Apple GPT you would have gotten an error message.
BCA is still after all these years unable to understand and work with a Mac Pro properly. A one-trick/ one-drive only utility that is stumped when it runs into a dual drive setup. Which way why I gave up on using Mac Pro for dual-boot and built some PCs just for Windows 7. I install Windows on PC, then transfer the drive to Mac Pro and it works just fine!
Xserve RAID Card: Boot Camp does not support RAID configurations
Xserve RAID Card: Boot Camp does not support RAID configurations ... Boot Camp does not support the installation of Windows onto a Mac using hardware or software RAID (Redundant Array of Independent Drives). This includes Microsoft Windows built-in software RAID as well as the Mac Pro RAID Card.
http://support.apple.com/kb/HT2855

Am I able to install Windows 7 in Boot Camp with this HDD partition setup?

I recently upgraded from Snow Leopard to Lion, and my Boot Camp partition was obliterated beyond recognition. Fortunately I have backups, but I'm having issues re-installing Windows 7. This is what my disk looks like:
Mac OSX - Current Lion partition
Untitled - Where Boot Camp / Windows 7 used to live...
Shared - 1TB of shared data... Media/Documents/etc
This is the error I get when trying to install Windows 7 with Boot Camp Assistant...
From what I can tell, this means I won't be able to do it without wiping the Shared partition? Or is there a workaround I can use? I'd really hate to have to move all of it over to an external hard drive, since I don't have one with 750GB of free space handy...
And would this probably happen again once Mountain Lion comes out? I'll be getting that pretty much on launch, so should I hold off on messing around with this if I'll likely have to do it all again in a few weeks?
Thanks in advance to anyone who can help!
- Mark

Why don't you invest in a 1.5TB drive and case? And add to that a TimeMachine drive (and a small 40GB or even less "Emergency OS X" partition on it... a must - could even have clone of Lion and Lion Recovery on it, AND TimeMachine partition.
If you don't have a backup, it almost always will "rain" on the parade.
If you try booting from Windows 7 DVD and aim it at the parittion, what happens? tried?
To use BCA yes it is one partition and one way only.
You could remove " - " the UNTITLED volume and then expand Mac OS volume to fill that area, or plan for and setup Lion Recovery space too.
http://support.apple.com/kb/HT4718
People have managed. Usually planning ahead up front for a setup like this.
CLONE OS X and ~ or install Lion on an external drive and create a Lion Recovery partition.
http://www.bombich.com/software/ccc.html
http://macperformanceguide.com/Mac-HowToClone-backup.html
http://macperformanceguide.com/Mac-HowToClone.html

I have a MBP and have used boot camp to make two partitions. I screwed up and reformatted the PC side. I'm trying to use boot camp to get to the pc side now and it says it can't. I have to download some helps for windows. I did that, but it still won'

Then... I tried to reformat using the start up disk and reloaded everything. When I tried to use boot camp I still get the same message. When I check disk utility, I still show two partitions...same as before... I just can't use the pc side. What's up, please?

I also have Jolly's problem. I found the iMovie 9.0.9 folder and tried to launch the older version of iMove. It would not launch. I removed all of the iMovie preferences from the Preferences folder, removed iMove 10 from the applications folder, and restarted my Mac. iMove 9.0.9 still won't launch and I can't access my videos created with the older version of iMovie. Is there a way to uninstall iMovie 10 and reinstall iMovie 9.0.9?
I am running Yosemitie on a iMac.
Paul

HT3986 Why my Boot Camp keep saying that there is no USB device connected ?

I use Mac Air, and with a external CD device. When I try to install Window 7, it keep saying that there is no USB device connected when there is.

Unfortunately not all external CD drives work the same, have you tried another cable or used another slot?
Have you tried using a USB flash drive? You should have an option now in Boot Camp Assistant to install the W7 installer onto a USB drive as well as the Boot Camp drivers.

Boot Camp keeps stopping at partition step

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