MacBook :: How To Backup And Repartition Hard Drive - Source Could Not Be Validated
Jun 19, 2014
I have a 2008 MacBook Pro, and last night, it suddenly restarted. When starting it again, it stayed on the grey screen with the Apple logo. Following a support page provided by Apple, I tried the following:
1. Start the Mac in safe mode
2. Reset the PRAM
To no avail. Then I restarted it, and held Command and R, and it went into disk utility. There, when Repairing my hard drive, Dis Utility told me to back-up the drive and repartition it.
I tried to back the disk up to a flash drive, but I got the error "The Source Could not be validated"
Then I proceeded to repartition the disk anyways, but I am confused on how to. I'm scared that if I erase the disk, Mac OSX will be gone, and I won't be able to use my computer.
I have two questions:
1. How can I backup my disk
2. How can I repartition it?
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Feb 12, 2009
I need to partition an external hard drive because time machine requires its own partition. How would i go about this without deleting the entire drive and doing it that way?
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Apr 9, 2009
I used Boot Camp to make a Windows partition. Since then, I have run out of space on my OSX partition. How can I resize the thing without having to reinstall Windows or lose any of its data?
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May 8, 2009
I have a 250GB Lacie HD. I want to repartition it from five 42GB drives to two. (I can delete everything in present HDs, as have copied over to new mac) Despite a Google cannot find info.
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Nov 17, 2010
I'm having problems installing OS 10.6 on my iMac. I had to replace my hard drive with a new 1TB drive and in trying to install the OS I get a message saying I need to use Disk Utility to repartition the hard drive using GUID Partition Table but I don't see any such option in the Disk Utility menu!
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Jan 14, 2010
I was repartitioning my hard drive in Boot Camp prior to installing windows xp, but changed my mind after I had chosen to partition in fat32 and did not complete the process. Now my hard drive sees itself as partitioned and I cannot use Boot Camp to install Windows XP. When I try using Boot Camp again, I get the message :
"the startup disk cannot be partitioned or restored to a single partition. Backup the Disk and use Disk Utility to fromat as Mac Os..... Restore your info to the disc and try using Boot Camp again...."
My question is: is it even possible to reformat the hard drive from fat32 to nfts? I am new to MAC switching from Windows and wanted to install an embroidery software.
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Feb 5, 2012
Is there a way I can use my external hard drive without the files being transferred on to my computer? as like like my iTunes music being on my hard drive without them being copied onto my computers hard drive ? because i dont have that much memory and i wanted my external hard drive to be the source for my music files and not my computer.
Info:
MacBook Air, Mac OS X (10.0.x)
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May 16, 2012
Is there a way or a utility to sync a Time Machine backup with the source drive?
I mean, so that all files which no longer exist on the source drive would be removed from the Time Machne backup too?
Info:
iMac (27-inch Mid 2010), Mac OS X (10.7.4)
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Jun 22, 2014
My external firewired hard drive is 250 GB. There is at this time approximately 189 GB remaining unused free space. How can i create a special partition of approximately 20 GB ? Can Disk Utility do that or do i require a commercial version ? And if Disk Utility can do that how is that done ?  Â
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Sep 5, 2014
Basically I have a 750GB hard drive in my Macbook Pro and over 300GB is taken up with 'BackUp' data. This is more than the total of everything I have on the drive other than that. Time Machine has always been setup on an external drive and when searching all files on the Macbook there is nothing for backup files so don't know where it is coming from.
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Mar 27, 2012
How do I get photos from backup external drive on to my new hard drive on my MacBook
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MacBook, Mac OS X (10.7.3)
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Mar 9, 2012
Is there a way to make a backup of your Time Machine backup on a 2nd hard drive? I want to be doubly sure that my data is backed up!Right now I get an error saying that the second hard drive isn't authorized to copy my Time Machine data from the original hard drive I have set up as my Time Machine.
Info:
iMac, Mac OS X (10.7.3)
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Aug 5, 2009
I have multiple computers that all need to be backed up! The macbook that I bought for my girlfriend last year suffered a major hit, the hard drive crashed and she lost all of her information. Now I am worried!! I have the computers listed in my signature and a Lenovo s10e netbook that I would like to back up on the same external hard drive. I don't plan on doing anything but backing them up once every week or two.
First question is what external hard drive should I get to be able to back-up four macs and a windows machine? (I would like to have a desktop external, not portable)
Second question is when I get the drive should I separate the drive into multiple section or what?
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Dec 21, 2010
I was going to get a 500GB hard drive to replace my 160GB hard drive in my white macbook. I was wondering where's the best place to backup the data online before changing it out? Carbonite?
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Aug 16, 2010
I have a new macbook pro and after reading various threads I want to buy a gtech 320gb external drive. The only one I can track down is the firewire400. (at a reasonable price) The MB is FW800. will the FW400 work OK and is the speed significantly slower?
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Apr 15, 2012
How can i backup my computer files and downloaded programs to a generic external hard drive?
Info:
MacBook, Mac OS X (10.6.3)
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Apr 28, 2012
I currently have about 143 Gb of memory taken up on my internal hard drive as Backup. Â
At least this is what I see when I go to About This Mac / StorageÂ
I have an external back up drive so really need to free up that area of the disc...Â
Info:
MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.3)
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May 14, 2012
I'm looking for a backup hard drive to keep everything on my macbook pro safe etc. My hard drive's capaciy is 250Gb and the cheapest hard drive i found was for £28. It was also 250Gb. I was going to use time machine etc so is 250GB enough?Â
Info:
MainStage, Mac OS X (10.6.7)
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May 20, 2012
I am currently making the switch from Windows, I can't wait for my MacBook to arrive. My lovely Dell currently has a 320 GB HD that would prove a very nice external backup storage unit. I plan to remove it and find a case to mount and use it as such!
Only problem is, I'm fairly certain that I'll run into some compatibility issues and have never used an external HD. I'm unsure of how the process works. This is the HD in my personal laptop (only PC I own), so it's not like I have it hooked up to play around with as an external at the moment.Â
The Hard Drive is a Toshiba MK3255GSX (SATA): [URL]  Can I connect with FireWire (or Is that dependent on my hard drive, or do I get a cable converter)?When/how do I partition it?Since this is my personal home use PC, it's loaded with a bunch of programs/Win32/cache/temp files/garbage. Can I just access/delete these from the Mac?Â
Info:
MacBook Pro, Mac OS X (10.7.4)
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Aug 22, 2014
I want to download a new software for my mac but a message pops up and says it recommends i back up my files on time machine. Can you back up on an internal hard drive or do you need an external hard drive to do it?
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Mar 15, 2009
How big is a TM backup - is it the same size as the source?
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Sep 2, 2008
I'm installing OSX now but wondering if a direct hardrive copy is better than my time machine backup, or should i have just imaged my old HD?
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Jul 17, 2009
I just replaced my hard drive today. I booted it up and went to disk utilities to format it and all of that. When I finished I went to restore system from back up and plugged in my external hard drive and the computer said there was no history of back up from Time Machine. This was strange because before I formated the hard drive and tried to restore the information, it recognized that there was back up information. I decided I would re-install the os and try again.
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Sep 16, 2009
I have a MacBook and will be purchasing an external harddrive to backup all my info from OS X. I also have a partition on the drive in the MacBook for windows and would like to use the external as a backup for that as well. Do I have to format the external and partition to backup each OS? I am new to the whole backup of info with an external harddrive.
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Feb 15, 2012
i am trying to format my hard drive to work through my tv or ps3, and it wont work unless i reformat my Hard Drive to a FAT32 format. ca FAT32 be used for a time machine back up? (OS X Lion)
Info:
MacBook
Pro, Mac OS X (10.7.3)
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Apr 10, 2012
How do I know when my back up is complete to an external hard drive..
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MacBook, iOS 5.1
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Jun 17, 2014
Is there a way to get my photos off an old time machine backup from an external hard drive?
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MacBook Pro with Retina display
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Mar 8, 2012
My internal 1TB hard drive on my iMac is dead and I don't have the money to replace it at the moment. I have everything backed up on an external 1TB drive using Time Machine. As a workaround for the time being,Is there any way I can install the system on the external drive and use that as the boot drive without erasing the Time Machine Backups? It seems to me I would have to have two partitions for the external drive, one for the system, and one for Time Machine. But is there any way to add a partition without erasing the existing one with Time Machine only on it? Â
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Jul 2, 2012
I would like to use FileVault to encrypt both my hard drive and time machine back up external drive. Does encryption noticeable slow down the computer.
Info:
MacBook Air (13-INCH, MID 2011), Mac OS X (10.7.4)
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May 27, 2012
I had a IBook G4 and an external hard drive as its back up.IBook running something like Snow Lepord, anyway I have a Intel Macbook now with Lion, Ive been told here there is a possible confliction between the AMP external harddrive and lion.I will say a few times I have for limited time been able to access the drive on the newer MacBook, but then Lion (I think) drops it.Â
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MacBook, iOS 5.1
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