OS X :: Hard Drive Partition / Disk Image
Nov 17, 2009
I want to partition my hard drive so I can run BootCamp, and my PowerBook is giving me the following message: The Disk Cannot be Partitioned because Some Files Cannot be Moved. So I'm assuming I need to format the whole thing and then partition with BootCamp. Totally open to other ideas, but, assuming I move forward with that, is the best was to save user settings, current Applications, data stored on the drive, etc. to create a disk image on an external drive? I've done that, but I'm sort of unclear on what I do with the disk image after I've wiped the drive and partitioned it up.
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Apr 24, 2012
I have a 2TB Western Digital My Book Studio FW800 external that has 5 partitions, connected to my 2011 iMac. I had help doing the partitions and don't really remember the reasoning, but one is just for my SuperDuper! backup, one is Miscellaneous, one for movie clips off my camcorder, one for misc scanned photo's and one for my genealogy research. I back up using Time Machine to a Time Capsule and also to this WD hard drive with SuperDuper!
Recently I'm getting a pop up message that "Mac OS X can't repair the disk "Genealogy"'. And it needs to be reformatted. It's become a read only disk. When I look in Disk Utility it shows all the partitions as "Mac OS Extended (Journaled)" EXCEPT for the one in question. I also noticed that there are a lot of files with "date created" being the same date in 1969! These files may be letters I've written or photo's I added to that partition within the last few years.
I think I have to completely reformat the entire external hard drive to repair this, but I want to make sure. Because it's going to be a major hassle backing it all up to another external (having to get one first) and then figuring out how to make the files that have turned "read only" in that one partition, back to their original state! Does this sound right, that I have to reformat the entire external hard drive? And how do I get the read-only files back to their original state.
Info:
iMac, Mac OS X (10.7.3)
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Aug 18, 2009
I recently deleted a boot camp partition and i did all that i was told to do.
When your on disk utility you have the hard drive type then "macintosh HD under it.
When i click the hard drive it shows i have 91 GB remaining on it
When i click macintosh HD it shows its only a 200GB hd when its a 250 and only has 69 gb free?
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May 17, 2012
Is it possible to create a bootable disk image of my hard drive onto an extrenal firewire hard drive?
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Aug 28, 2014
I have a early 2011 macbook pro and the internal hard drive failed. I installed OS X mavericks on an external hard drive (1) and I boot from the external drive (1). On a different external hard drive (2), I have a disk image of my macintosh HD (the computer's original hard drive with all my data on it) How do I go about restoring from the disk image on the external drive(2) to external hard drive (1)?
I want to be able to boot from the external hard drive (1) and have all my data that I backed up as a disk image on external hard drive (2)
Info:
MacBook Pro, OS X Mavericks (10.9.4), early 2011 macbook
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Nov 12, 2009
I was making a partition on my USB external drive in order to put a disk image of Snow Leopard on it, so I could boot off of it.
I added a 10GB partition to the drive, and clicked Apply. The following dialogue box came up:
Partitioning this disk will change some of the volumes. No volumes will be erased.
This volume will be added:
"Snow Leopard"
This volume will be resized:
"XXX HDD"
I clicked Partition, and it finished very quickly. I checked Finder, and the entire drive, BOTH partitions are completely empty.
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May 16, 2012
how do i partition my mac hard drive if my startup disk is full and i have more space
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Sep 2, 2014
I've been running a Toshiba 1TB external drive on my Mac Pro tower and it's been working fine. But yesterday it wouldn't mount. I could see the drive in Disc Utility, but the partition wouldn't mount. I brought it into work where I'm running an iMac and it mounted just fine. Why would it stop working on one computer (where it was previously fine) yet work okay on another? And how do I get it working on the tower?
Info:
Mac Pro, iOS 7.1.2
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Jan 7, 2011
I have an external 750GB hard drive that I previously formatted as FAT 32 because I wanted to be able to plug it into Windows computers as well. I was not very thoughtful at the beginning and I just created one big 750GB partition. I currently have 450GB used and about 300GB free.
I would like to create a new partition in the free space without losing the data I have in the disk, and format the new partition as Mac OS Extended to use it for Time Machine backups. Presumably Disk Utility can do it, but when I go to the "Partition" tab it says "This partition cannot be modified" and the "+" sign below it is grayed.
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Apr 18, 2010
The hard drive is a 1TB Western Digital my book I bought it in January I think. I tried to format it to Mac OS Extended (Journaled) when I got it but for some reason every time I try to erase the part thats named disk3s2 or partition the main one it stops a little before half way through. I don't think its the hard drives fault so I called apple about it one day and they helped a little but it didn't work. Thanks in advance if you can help me. Also a few times I waited about seven hours for it while I was at school and when I came home it didn't move.
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Jan 29, 2010
I have a 1/3 full external drive that is currently formatted for MAC OS External.
I want to partition the drive in half and use the 2nd partition for Windows FAT32.
However, when I try to do this with Disk Utility it does not give me the FAT32 option.
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Jun 3, 2014
Disk Utility Crashed whilst creating a Partition, and I now have ~100GB missing, which was the amount I had allocated to the new partition.
The new partition didn't get created, and I now have 100GB missing from the Hard drive. I have a 1TB hard drive, and when I go to Disk Utility, it says: Capacity : 999.35 GB (999,345,127,424 Bytes)Available : 586.1 GB (586,103,844,864 Bytes)Used : 310.52 GB (310,524,317,696 Bytes)
Which adds up to about ~900GB.
I tried Repairing Disk in Disk Utility, booting into Recovery Mode and Repairing Disk there, but neither made a difference.
Info:
MacBook Pro (15-inch Mid 2012), OS X Mavericks (10.9.3)
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Jun 5, 2014
I have a 10 GB encrypted disk image on my macbook (type OS Extended (journaled)). I've pretty much filled up the space so I want to resize. I go into disk utility with the disk unmounted and 'Resized' it to 20GB. Then I mount it and go into the Partition tab. I drag the corner all the way down to fill up the space and hit Apply. It goes through the motions without error but it does not actually extend the partition to the resize. On the right next it then says something to the effect that the disk is read only and cannot resize the partition. The write status is read/write until I click apple....then it switches to 'Unmounted, read-only'.
Info:
MacBook Pro (15-inch Early 2011), OS X Mavericks (10.9)
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Jul 27, 2009
I have an aluminum unibody macbook from October 2008. I'm looking to upgrade the 160 GB hard drive inside to a 500 GB one I'm considering from Newegg. Would it be possible to migrate/copy/clone the entire contents of my current hard drive to the 500 GB one? I also have a section of my current hard drive partitioned for Bootcamp. Would this affect my ability to transfer everything over?
If this is possible at all, how can I go about doing so? If there are steps laid out somewhere, I'd appreciate a referral. Sorry if my question is a little elementary, but I did a search on these forums and also google and nothing really came up
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Jul 30, 2009
I had my hard drive partitioned into 2, where one was mac the other windows xp. I received this macbook as a gift from my sister so i wanted to reformat everything into mac. I popped in the Mac OS x install cd and just installed it. Now there is two hard drives and I am not able to re-partition it where i can bring it back to one again...I was suppose to delete windows first before re-formating my macbook.
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Feb 23, 2009
I am trying to partition my current HardDrive so I can run a Macintosh on half of it. The other half will of coarse be windows. I've tried programs like BasiliskII and SoftMac, neither work.
I grabbed some spare 10.4 disks I had, and my computer refused to read them. So I got my hands on a different set of 10.4 install disks and my computer still refused to read them.
I am trying to do this because it's a project for my Computer Hardware class. I've spent way too much time on this without any progress.
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Jun 11, 2009
I have a Mac mini with a 55 G internal hard drive with a 750 G One Touch Maxtor drive (actually just 698 G) attached via firewire. Later this month I'll be upgrading from Tiger to Leopard, and I'm assuming a clean install makes most sense. I'd like to partition the Maxtor drive to provide general storage as well as Time Machine backups. Although it's not vitally important, I could envision having a partition to handle Windows. Should I create three partitions: one for approx 55 G to handle the current contents of my internal drive for the upgrade; one for approx ?? G to handle potential Windows; and the remaining space to handle Time Machine.
- How large should a Windows partition be? There are some apps that would be useful to have, but highly unlikely it will be an important part of my routine. Should I be stingy? Can I get a Windows install in about 10 G? 20 G?
- Can I partition the Maxtor while it has data? Currently there is about 25 G of files. Many are expendable.
- Disk Utility seems to default to PPC settings, though the mini has an Intel processor. I'll want a GUID Partition Table for at least one partition, correct?
- Does it make sense to install Leopard on an external partition in case the internal drive ever fails? Or is that a waste of space for now? (One assumes I'd be able to rescue the machine via the install disks.)
- I suppose everyone's experience with Time Machine is different based on how they use their computers, but is there a rough guideline on how much space to devote to Time Machine?
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Sep 28, 2009
My intention is to partition an external HD in half allowing it to serve as a backup for a pc running windows xp, and the other half as a backup for a mac(10.5. I am using a Seagate external HD(new) that was initially partitioned on a windows xp computer.
The 1st half of the 1TB HD was formatted in NTFS format, and the second half was erased and (I thought) reformatted in HFS plus but when I attempt to use CCC(Carbon Copy) to copy the mac 1/2 of the hard drive, I get this message:
"You may have difficulty booting from this target volume, the underlying disk is not formatted with a partitioning scheme that Apple recommends for Intel Macs."
I have read the recommendations that the external HD need to be partitioned with APM or GPT, but I cannot seem to get to that option now for the mac side of the external HD.
In the Disk Utility, the external HD shows both sections of the partitioned drive(the xp section and the leopard). I do not want to reformat the entire drive(both sections) if at all possible.
I just want the Mac side of the ext drive to be properly prepared for CCC, and the windows side to remain as is.
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Nov 30, 2014
On my Mac Pro I don't know how to delete a partition and make a new one on a hard disk.I used disc utility to initialize the partition, but it doesn't show any chance to delete or change the partition i created
Info:
Mac Pro, Mac OS X (10.6.8)
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Apr 14, 2012
Does anyone know if it is possible to create a disk image of the boot drive? I have tried / boot from DVD, then go to Disk Utility, file/ create new image from disk but the process stops imediatlly with a. cant unmount drive, b. drive is busy, c. in use how the drive is in use is not sensable, as it should be as 'just a drive' This is on a laptop with OSX 10.5.8 / 32gig hd, 2 gig ram, just in case it matters. I thought about timemachine, but the laptop sometimes requires a complete reinstall, that is a long process, install + upgrade + redo all the other programs +
Info:
G5 2x1.8 / G4 1.6, Mac OS X (10.5.8), G5 2x1.8 , G4 1.6 ghz, 2 gig, Beige G3 G4-1ghz OS9
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Nov 11, 2010
I recently made a clone of my Windows XP Pro SP3 installation (its roughly about 14GB according to Finder/WinClone) so i made a 80GB partition on my 320GB drive and it gives me this error message:
the WinClone came from a 500GB internal drive and ive gotten winclone images to restore to a MBP before but not sure why its giving me this error code, anyway to restore the image to the new partition (which was created with Bootcamp) as i no longer have access to the old machine it was running on.
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Feb 28, 2010
I would never opened a topic like this if I had not a similar experience with expanding 'dmg' in the past!
A truly bad experience! It is supposed that using 'disk utility' I can resize-expand-make bigger any dmg file. Every time I tried it, it was a totally fail process.The 'disk image' dmg did not resized at all.
I do not know why, it just happened to me many times.
Does anyone had similar experience? Any solution to this? So if I have a dmg that need to be bigger, I create a new one from scratch and I copy paste files from the old dmg.I need to do the same with hard disk partitions, using disk utility once again. I need to resize my hard disk partitions.Does this process works well as it should be, or it is a bad-implemented feature?
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Mar 31, 2010
I know it may sounds stupid to ask, I am thinking of partitioning my 500GB hard disk to 200GB and 300GB, with the 300GB holding the OS. Is it a good idea? Have anyone done it before? Any unwanted effects?
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Sep 12, 2014
I have partitioned my external Hard drive into three different partitions, each of different formats. Two partitions for backing up my macbooks and one to copy to and from my windows PC. I would just like to know if in any way is it possible for me to be able to re-partition one of the partitions, without affecting my Time machine partitions, in case the need be in future.
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Jun 8, 2008
I am having problems ejecting/unmounting drives. When I click on the eject button, the drive/disk image disappears from the desktop but stays in the Sidebar but it becomes unselectable. The only way to remove the drive/disk image is to reboot.
MacBook Pro 15.4"
2.5 GHz Intel Core 2 Duo
2 GB 667 MHz DDR2 SDRAM
Mac OS X 10.5.3
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Apr 8, 2009
i got a lenovo s10 (windows xp) and i want to make an image of the hard drive using my mac. I have no idea if this is even possible. i vaguely recall someone once telling me that if you connect any computer via firewire to a mac that you could take an image of the hd on that computer. I realize that the s10 doesn't even have firewire, but i was wondering if this was true or not.
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Jul 31, 2009
I'm new to OS X and I'm wondering if there is a way to make an image of my hard drive that I can store somewhere. That way when if I ever need to reinstall OS X if my HD dies or something, I can just load the image that I have saved. I've done this with a PC before using Acronis and Ghost but I'm not sure how to do this for a mac..
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Jun 20, 2014
When I try to partition my hard disk, Disk Utility tells me that the file system cannot be read.
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Jun 29, 2009
New 13" MBP, 250 MB stock dirve, set it up with software and configured everything, about 200 MB still free. Before I swap it out for a 500 GB and add my media files I thought I'd create an image of it using the Hard Disk tool.
- Logged into home NAS drive on the network using Connect To Server, opened Mac Hard Disk Utility, couldn't create image because the Hard Drive was in use.
- Restarted using OS DVD instead of HD, but now there is no Connect To Server pull-down option to be able to log into NAS drive on network. I can see the NAS through AFP when I go to Save As, but that's only as a guest, Read Only.
- I plugged in my 32 GB flash drive, tried to save image there, got an error message that it can't create because file is too large.
- Unplugged flash drive, plugged in 320 GB external USB drive, couldn't write to it because it was still NTFS from using it with my windows machine.
- Used the HD utility to erase the drive as FAT so it will work on both. Was able to create a folder on the drive so I know it's now writable.
Tried to create the image, it looked like it was working for a while, woke up this morning and checked, it says it can't create the image because the file is too large.
It can't fit 40 GB of data onto an empty 320 GB drive? Did Apple hire Windows programmers to create this utility?
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Sep 1, 2009
Ok so here it goes.
The situation I'm in is pretty akward and it's quite a long story but I'll try my best to explain everything.This afternoon I went to a friend's house to transfer some data to my external hard drive (MyBook Studio).Since my HD is formatted as HFS+ and my mate owns a Windows PC, I'd asked him to install MacDrive.
When we plugged in my HD, Windows just didn't detect it. We tried all sorts of things, including rebooting.. but nothing seemed to help. No matter what we did. The damn thing just didn't detect my hard drive. Not even with MacDrive.
I desperately wanted to transfer some data to my HD since I'd drove quite a while to get there. So after a bit of Google research we decided to create a partition. My HD has a capacity of 1 TB and only about half of it was being used.So we went on and created a NTFS partition of 400 GB. Now Windows could detect the partition we'd just made.
Everything went fine, we could now transfer some data to my HD.Nevertheless.. when I got home and connected my HD to my Macbook Pro, Finder could only see the partition which we formatted as NTFS. The other 600 GB, which we hadn't touched.. is nowhere to be found.
There's quite a lot of important data on there so I would really appreciate it if anyone could help me.
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