OS X :: Partition Shown As EFI Boot - Mac Volume Not Located
Jun 6, 2009
I have 2 partitions on my MacBook drive. One is OS X Leopard, and the other is a Windows XP Bootcamp Partition (FAT32). When I made the Bootcamp partition, I cloned up my OS X partition to a USB drive (using Carbon Copy Cloner), replaced the OS X partition with the clone (to defragment it), and then partitioned it using Bootcamp. I decided I wanted a larger Windows XP Bootcamp Partition, and so I removed the partition using Bootcamp, recloned and replaced the OS X partition with the recloned backup (to defragment it, once again), and then used Bootcamp again to partition it, this time with a larger partition size. The first time I partitioned it, everything worked great. Ever since the second time, though, when I hold option during startup to change boot volumes, the volume that once said "Macintosh HD" now says "EFI Boot." Also, my OS X partition is no longer the default partition, and when I lookt at the Startup Disk in the System Preferences, my OS X partition is not listed among them. This is the same when I look at the "Startup Disk" preferences on the Windows XP partition, using the Boot Camp application, and when I click "Startup in Mac OS X," I get the error: "Could Not Locate Mac OS X Volume."
I had been ignoring the problem, simply holding option on startup and choosing the "EFI Boot" volume. This was working fine until today, when I finally came around to updating OS X. I ran Software Update, which told me I had to restart my computer. When I did, it went through the whole updating progress bar screen for a while, and then restarted the computer. When the computer restarted, it restarted in Windows XP, so I shut down the computer, booted it up, and held option. I chose "EFI Boot" when I was given the choice, and it started booting to my OS X partition. About a minute or two after I chose "EFI Boot," the computer unexpectedly rebooted into Windows XP again. I restarted the computer, again holding option and choosing "EFI Boot," and again it unexpectedly restarted. How can I get back into my OS X partition? Is there a way I can clone my OS X partition and replace it like I've done in the past? (Note: I have MacDrive 7, and have seen an option for backing up drives on there in the past, but have never used it.) Why is my OS X partition showing up as "EFI Boot"
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Jun 18, 2012
i have a boot install of windows xp and windows 7 on two separate HD's in my mac pro and i would like to consolidate these (along with my primary mac OS) onto one single drive.
can i migrate these somehow to a new partitioned drive?
Info:
Mac Pro, Mac OS X (10.6.8), 10.6.8 with 64 bit Win7 in Parallel
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Jul 19, 2008
I purchased a new hard drive, my second Samsung 750 GB. My first one is partitioned, half for OSX half for Vista. Ultimately, I want to have a hard drive per operating system.
At first I thought the way to go for this, based on some stuff I read here on Mac Rumors was to use winclone to clone the windows partition,restore it to the new drive, and then I don't know what.I did the restore, there were errors in the log though..something about the wrong kind of partition. Basically it's become a pain in the ass, and I'm thinking there has to be an easier way.
It occurred to me, I might be able to use "Install and Archive" to move the boot volume to the new disk, moving the user files and network settings with it. If I did this would I be able to expand the windows partition using winclone utilizing the full hard drive? Or could moving the boot volume to the new disk mess up my Windows partition?
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Aug 23, 2014
I recently decided to increase the volume of my bootcamp disk, which I had done in the past using a method which ultimately made the disk unrecognizable. This time around I used Winclone to create an image of my bootcamp disk. I was not sure exactly how Winclone worked and to be safe I decided to keep the Bootcamp disk I had, and I created a third partition of a larger volume to which I restored the bootcamp image. Everything worked fine obviously, and the image was restored correctly to the new larger volume. The dilemma is I had two bootcamp disks, so I erased the smaller volume because I no longer needed it. Currently I am trying to restore this empty space within the main disk to the Macintosh HD. Disk util looks like:
I know I can just create a backup of the macintosh HD, another image of the bootcamp disk, and format the disk and start over, but I am hoping there is an easier way to go about this; considering there has been a method engineered such that I can just drag that corner of the mac HD and voila I have instantly more storage after applying, it seems viable that there is something that can be done rather than formatting my disk, unless the necessity for that of course was overlooked.
Info:
MacBook Pro (13-inch Mid 2012), OS X Mavericks (10.9.4)
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Sep 10, 2009
I just installed Ubuntu 9.04 onto a small 10GB partition that I quickly made in Disk Utility (resized my HFS+ partition while leaving my Windows 7 one intact). Upon reboot, I hold Option, and it only shows the 2 partitions (OS X & Windows). I was hoping it would show the Ubuntu partition. Since it doesn't, I have to use the Windows 7 bootloader to boot into Ubuntu. So, is there a way to edit my MacBook's bootloader to show all 3 partitions?
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Jun 6, 2010
I tried yesterday to make a Boot Camp partition on my MacBook Pro 17"s 500GB hard drive, but something seems to have gone wrong while installing Windows 7. And the new partition was inaccessible from Disk Utility, so I deleted it by booting from the Windows 7 disk. But now the unallocated space from the deleted partition isn't showing up in disk utility, and I have now idea how to remerge it with my main Snow Leopard partition.
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Sep 8, 2008
I have an ibook g4 that will not boot, I figure its a bum hard drive since the hd doesn't show up in diagnostics. I am wondering if its possible to install os x on an external firewire hd through the ibook and run the ibook off that? The only reason I need the ibook is for portability with my dj program torq, I have 2 imacs, a 20" and a 24" but they aren't very portable.
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Jun 27, 2014
I get this popup window every boot. Why does that window show up? and How can I fixed it?
+
I reinstalled OS X 10.9.3 today. Before reinstalling, I didn't see that window.
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Dec 13, 2009
My PowerPC G4 crushed. After repairs, I installed 10.4.11. I have 512 MB DDr SDRAM. The problem is the following: I noticed there are two volumes on my desktop. One, with about 7 GB is where the system is. The other contains about 63 GB with a some files in it. I went to update my system but it asks for more memory. I am guessing the 63 GB volume is not recognized.
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Mar 10, 2008
I have XP running beautifully on a 150 GB Raptor (via bootcamp). I'm thinking of adding Vista, but I'd like to avoid formatting the drive and creating two partitions for XP and Vista.
Can I slice off some of the 150 GB for Vista leaving XP intact?
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Apr 8, 2012
My mid 2010 iMac i7 will not boot past the apple logo? I'm running 10.7.3. I have tried restoring from TM backup from recovery mode (worked the last time this happened) however upon completion it returns to the recovery screen? I made a disk of Lion when I downloaded the first time (followed same instructions sourced from numerous websites) which does not seem to work when i set to start up from this disk, just gets to the grey screen and flicks between the apple logo, a folder icon with a question mark and the circle with line through? Now I can't eject the disk either, a message appears that system can't eject and to make sure all applications are closed? Not sure how to go about closing these applications without being able to start the system? When I tried booting from the Macintosh HD I got a message that the boot cache partition was faulty? I have ran disk permissions etc all ok.
Info:
iMac, Mac OS X (10.7.3)
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Feb 5, 2010
I reinstalled Snow Leopard on a new volume, transferred stuff I wanted from the old volume to the new volume, and deleted the old one. In disk utility, I have not been able to stretch the volume to fit where the old one was. I can't change the volume scheme. Has anyone got a method to let me use my full 160GB hard drive rather than half of it? Or maybe software that can alter it.
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Aug 5, 2010
I am trying to resize the bootcamp partition on my iMac. I opted for the 32gb option when I first ran bootcamp but I wanted to add more. I read online I could do this my shrinking the Mac HDD and then creating a new partition FAT32. Then open up windows and open up disk management. Then right click my bootcamp hdd and click "extend volume." however, that option is greyed out. Am I missing something or is there some other technique?
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Jun 23, 2014
I have a 3 TB disk that I used for video files that I now want to use for backup. So I wanted to erase and partition the drive to wipe it clean. So after going into Disk Utility and "trying" to erase and partition the drive, it now only shows the drive and no volumes.I cannot create or partition volumes. I tried verifying and repairing the disc but that didn't do anything. The only buttons available are Verify, Info and Burn. What do I do to use the drive again?
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Jul 2, 2010
Now, I set up a partition to run Ubuntu on my MacBook, but now I want to remove that partition to make room for Windows XP. When I go to Boot Camp Assistant, I try to click 'Continue' but it gives me this: I thought I could fix the problem using Disk Utility, but I couldn't understand what I could do. I thought it would work by erasing them, but I may have made the problem worse. Here is what it looks like: I tried booting the Ubuntu disc as I read I could remove the partition using that, but I don't understand how that would work.
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Jun 19, 2012
My Mac Pro will not find it's boot volume. Each time the computer is started, the blinking folder with the question mark is the result. A working install of 10.7 does exist on the machine's primary hard drive. If I were to press the option key on boot, I can select the primary hard drive (after entering the password) and everything boots as normal. I have run TechToolPro on the volume with no detected errors, even after a volume rebuild. A Recovery HD partition is not on the boot volume. Should that matter?
I really really do not want to reinstall Mac OS X. I have hundreds of gigabytes of data in question. Any reinstall/reconfig would take days to complete.
Info:
Mac Pro, Mac OS X (10.7.4), 8GB RAM, 1TB HDD
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Oct 24, 2010
I have change my C: drive name (was in past "Untitled"... eww) and it shows up changed as this new volume name on both my Mac and Windows sides. I also changed my Mac side harddrive name and it shows up changed on my Mac and PC sides. So this is all good and correct.
But when I boot up holding option, and am able in choosing which volume to use (Mac side or Windows Partition) the Mac side choice will be named whatever I have named the main drive which is what I expect. But the Windows Partition will just be named "Windows". It will not be named what my C: drive is named (which is what shows up on my Mac side desktop and what I want it to show up as).
This probably all sounds silly and of trivial but it would mean much to me if any one knew a way in changing so that when I choose which drive to use "Windows" will show up as C: "Drivename" would be much appreciated. If this could be a complicating issue I will let you know that the harddrive name for my Windows side contains a ' if that would cause a problem (but my Mac side name does too so it doesn't make much sense to me).
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Apr 13, 2008
I've an early 2008 Mac Pro which I have added a couple of additional SATA drives to; both are Western Digital Raptor drives (a 75GB and a 150GB model). I've successfully used the 75GB as a BootCamp volume for Windows XP, and it is my intention to use the 150GB one as my main OS X boot drive. I used SuperDuper! to copy the original boot drive over to the 150GB Raptor, which copied successfully. Unfortunately, this new volume doesn't appear in the list of bootable volumes in the Startup Disk preference panel. If I restart and hold the Option key down, it is listed and I can boot from it, but I'm worried about erasing the original drive whilst I can't manually select the new drive as my boot volume in the preference panel. For what it's worth, Disk Utility reports the new volume as bootable. Can anybody suggest any remedies as to how to make the new volume appear in the list, so that I can recover the older drive to use for storage?
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Aug 28, 2009
For those who have installed the Boot Camp 3.0 drivers does it resolve any of these problems with the 2009 Macbook:Low volume output from speakers, Optical output red light always on, Keyboard backlight won't turn off, Microphone not working, Left speaker louder than right speaker
Other than the ability to access your Mac drive does Boot Camp 3.0 add anything that would make it worth the upgrade?
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Jun 27, 2010
Usually when I go to "Restart into Mac OS X" from Boot Camp's system tray icon it works fine, but just recently it has started giving me this error and not working. It seems like usually when this errors hows it's because the Mac volume is bad or missing, but I have a perfectly working HFS+ boot volume that is visible in Windows and boots just fine. I do also have a second HFS+ partition for data, but no problems with them.
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Mar 25, 2010
I have a 15" macbook pro. I got it from my college. They gave me a bunch of cds to install stuff, including windows vista, so I tried to install vista and it was giving me problems. Since I have never installed an OS before, I reformatted everything to be NTFS. So now I have a mac with only vista on it. I realized what I did after I tried to use bootcamp and it said could not locate mac os x boot volume.
I have all cds and since I just got this mac, I don't have much saved on here so if I have to delete everything to be able to have OS X and Vista both on here, then so be it. Also I have 2 other computers, both are strictly windows computers if I have to go on a different computer to download something. I am very new to Mac (only have had this for 3 weeks) so I would need to know how to get into any configuration I would need. I know I could call apple support, but I would rather get information over the internet than over the phone.
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Dec 1, 2010
This is what I've done so far: I set a Stripped Raid Set with two drives: a Seagate 500GB @7200 and the original WD 640GB @7200. Before setting the Raid, I partitioned the latter in two: a 500GB and a 160GB, so the extra space is not lost. The Raid was created successfully (using the disk utility Raid - no special hardware). So far, is this OK (specially the partition part)? Now, my question is, what's the best way to migrate all my apps and data, from the original single boot drive I've been using until now, to the Raid - so the benefits of the raid are most apparent?
a) As soon as the raid was set, still inside Disk Utility, I used the Restore function, using the original boot volume as source, and the raid volume as target. This is in progress, with an eta of 4 hours, but I can stop it at any time... is this the best way?
b) Another way that occurs to me, is to clone the boot volume to the Raid using Superduper or CCC....?
c) Or perhaps I should make a clean OS install in the Raid volume, and then use migration assistant or other method to bring the apps and data to the raid?Or, something else I haven't thought of...?
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Jun 15, 2009
I just set up my new MacBook Pro 13-inch with Boot Camp. Initially I put Windows 7 RC on it, but I couldn't get the audio control function keys to work. Figuring Win 7 is probably quirky, I figured I'd drop back to Vista for now until 7 is officially supported. (Interesting how easy Apple makes it to annihilate a Boot Camp partition. :) So now I have Windows Vista Ultimate SP2 running with no issues. All the Boot Camp drives and utilities seem to be working. However, with all the sounds cranked to max in Windows, and using the F12 key, the volume is very quiet. Probably less than half of what I can get in OS X.
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May 4, 2012
IMac with 10.7.3 and Seagate GoHlex 2TB external drive. Using the disk utility why is was not backing up.The Seagate is now asking the question "Updating boot support partitions for the volume as required". The verify disk permissions and repair disk permissions buttons are not active. My reference "The missing manual" does not cover this challenge.
Info:
iMac, Mac OS X (10.7.3)
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Apr 29, 2012
My Time Machine drive is failing according to Disk Utility. It's trying to fix it but is now stuck on: "Updating boot support partitions for the volume as required." It's been there for hours. How long should I wait before assuming that it's just hung and force quit Disk Utility / re-boot (possibly making the problem worse)? One answer I saw was "as long as it takes" but realistically, I surely can't just leave it running for weeks. There must be a maximum time before I should assume it's not going to work.
Info:
MacBook
Pro, Mac OS X (10.7.3)
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Aug 21, 2014
I recently received an iMac as a "gift"... turns out it has some problems. I am unable to reinstall the default OS (Mountain Lion) because I have yet to be able to partition the HDD correctly. The error I keep getting is: Partition failed with the error: Wiping volume data to prevent future accidental probing failed.At this point, the default Macintosh HD isn't showing, so it must of been erased/deleted.
Info:
iMac
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May 23, 2009
well where do i begin ?? basicly i purchased a ibook g4 14" 1.33ghz that had its harddrive upgraded by a apple service provider. About two weeks after this upgrade took place the harddrive started playing up and the machine would not see the boot volume on the drive when restarted or every now and then the machine would freeze after some time of use, a few hours maybe. i ran apple hardware test and it came back clean after zapping the pram and disk warrioring the drive it fixed this for a day then it started again oh well.
so i sent it back to the service provider who said yep its the hadrdrive goody !!! oh NO he calls back the next day and says the new harddrive is not reconized and that they tried a new ribbon cable WTF when i sent it in the machine saw the harddrive via target disk mode all the time it just didnt see the boot volume.
NOW his saying its the logicboard **** sake !!! so my question could this machines logicboard be fried when it was fine before i sent it in , i mean the ide controller was fine i checked it and now im faced with a brick !!!what do i do ????
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Jun 1, 2009
I have my mac pro set up so that I have a boot drive with pretty much all my apps and stuff. And then, on a separate drive, I have my home folder. Basically, it's set up as detailed in this article. My boot drive is on a 500GB hard drive, and currently takes up only ~30GB. Since it is a 500GB drive, I don't use much of that space at all. Is there a way to partition the drive, without having to delete/reinstall anything, so that all of that data is stored on the outer areas of the HDD, so they're accessible more quickly?
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Jul 12, 2010
I have a late 2009 MBP with bootcamp. It has both windows xp partition and mac osx. Everything has been fine and I was able to boot into either partition perfectly until today. When I tried to boot into osx, I would get into the usual grey screen with apple logo on it, then a circle with a diagonal slash on it would appear. It would boot into the windows partition automatically after that happened. I tried holding "option" key and choose the mac partition but the same thing happens. What can I do to recover it? I really don't think I have done anything that changes the mac setting. I would hope to settle this without restore disc because I didnt have one now (left at home).
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Jan 17, 2009
how much should i partition for boot camp. I'm going to install widows xp and i have 52.42 gb left on my hard drive. how much should i partition?
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