OS X :: How Can I Continue The Process Of Erasing / Formatting The Drive
Jun 20, 2009
I was doing a 7-Pass Erase of a hard drive that I had switched out of my MBP. During the process, the USB cable connecting my hard drive to my MBP got disconnected. Now, whenever I connect this external drive to my MBP, it doesn't show up in the desktop or under disk utiltiy. How can I can continue the process of erasing and formatting the drive? What do I have to do in order for OS X to recognize it?
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Mar 31, 2009
I've been backing up my Powerbook G4 for a few months using Time Machine to an external firewire drive with two partitions; one for the backups, and a much larger one for all my music, video, pictures, etc. I got a new mac mini over the weekend and I want to format the Time Machine partition without erasing the one with all my other files so I can start backing up the Mini.
Is this possible using Disk Utility? If so, how?
Both computers are running Leopard.
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Jan 19, 2008
I have an external hard drive that I was previously using on PC, having attempted to use it on a Mac, it will not write to it. I've found that I have to format to FAT32, which I think i can just about manage (yes, im a girl) but my concern is, if i format through the MAC, will i then lose what's on the hard disk as the tab says 'erase'? I have a lot of images on the hard disk so am a little petrified! Any advice for this really basic question would be appreciated!
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Nov 3, 2007
I am having a problem getting my G5 to boot. Half the time when I turn it on I get no chime. The other half, I get the chime but the boot process does not continue. If I leave the computer on the fans begin to progressively get faster and louder after about 5 minutes. I've tried starting with various USB and Firewire components unplugged and have even gone to just a keyboard and mouse. No change. Can I get the computer to boot from an OSX CD? How do I open the tray? etc.
Information:
Powermac G5 Dual 2.5GHz
Mac OS X (10.4.7)
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Mar 5, 2012
I follow the instruction to erase the hard disk and format my new imac os lion but i found some problem when i deleting the hard disk.I follow all the intrustion came to the DU part, click erase on top, select the hard disk thn click erase, but it show that erase fail " unmount disk" what does it mean?
Info:
iMac
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Oct 5, 2010
If I want to format my Mac Pro (6 core 3.33 GHz) and I have an Apple wired keyboard and a bluetooth Magic Mouse will the Setup Assistant be "smart" enough to pair the mouse with the computer or will I be stuck with no mouse during the setup process? Do I have to run the entire process with a wired mouse?
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Nov 3, 2007
In the effort to use Time Machine, I want to partition my external drive. I have 500 gig external, and would like to have one partition of 480 and one around 20. This way, Time Machine will only back up onto the smaller partition, not endlessly backing up until all 500 gigs are used. The reason I need to partition without erasing is my 170 gig iTunes library. Its too large to transfer to my internal HD, and I have no other drive to store it on.
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Mar 22, 2012
I have royally screwed up! I want to erase the hard drive on my Power Mac G4 to prepare it to go to my son. I thought I was doing it right, but had forgotten to put the energy saver on "never turn off" so the screen dims when I try to continue with the erasing. Tried to start over with an install disk in the tray. Now can't access the original disk.
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Mar 24, 2012
I have a WD external drive that was set up as my time machine backup disc with Leopard. I want to erase the disc, but when I try to erase it using disc utility, it tells me "Disk Erase failed with the error: Unable to write to the last block of the device".
Info:
iMac, Related to an external drive
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Apr 10, 2006
Im really close, well just about done on selling my powerbook and I want to erase my HD so I can give it to the buyer by "factory settings", especially by erasing all my keychain passwords.
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Mar 31, 2012
I have a 2007 white MacBook that I am going to be selling. I want to erase the hard drive. I have gone into utilities but it won't let me erase the h ard drive completely.
Info:
iPad, iOS 5.0.1
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Jan 8, 2011
I have a Mac OS X install on a hard drive which I've removed from my system due to installing a new SSD with a brand new install of OS X. I'd like to use the old 500GB drive as a storage/backup drive, but the file system/all my data is still intact on the drive. This could be useful as I want to keep all my data and would save me having to copy across to another drive, format the entire disk and then copy it all back.
I'm just a bit worried about what to do with the system files that were on there... can I just move all the files I want to keep out of the usual Mac home folders and then just delete all the system folders as if they were never there? Or do I have to re-format/re-partition to get the most out of the 'new' media drive?
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Apr 29, 2012
I shut off my iMac the other day and now when it boots I get a start up bar that looks like on my iPhone when uploading new os. And then it gets half way and starts over. It seems that my hard drive has an issue. I tried booting from snow leopard DVD. But I can't remember how to install a new system folder without erasing the drive. I tried making a bootable DVD of tech tool pro on a friends windows machine but it doesn't seem to work.
Info:
iMac, Mac OS X (10.6.7), 4GB ram. 3.06Ghz Core 2 Duo
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Aug 21, 2014
I recently had to erase my hard drive because it failed and my computer wouldn't start up. When I try to reinstall Mavericks it just goes back to disk utility and I still can't start up my computer.
Info:
iMac
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May 14, 2010
I have an old iBook that I just want to completely wipe clean and install windows XP on (I know...blaspheme). Before people start questioning why I would do such a thing...it's only because I need the laptop for DJing in which I have an external sound card that only works with Windows. The main problem is that the CD drive doesn't work so I am uncertain how to go about erasing my hard drive and installing XP via USB.
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Jul 12, 2009
so I got OS X Leopard. I had a copy of Windows Vista, and decided to try out the Boot Camp Assistant. Didn't have a problem partitioning the drives and installing Windows. However, I now find it entirely pointless to have Windows on my Mac being that I have a PC now. I tried doing it myself at first, and ended up erasing the Windows partition, and now I'm having troubles combining the drives into one. I saw something about running an uninstaller through the Boot Camp Assistant, but I think erasing the Windows partition ruined that for me. Whenever I try to use the BCA while the drive is mounted I get this error message: 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. When I unmount the Windows partition, I get THIS error message: Boot Camp Assistant cannot be used. This startup disk is not supported.
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Jun 11, 2012
Since I activated FileVault 2 on my Mac boot drive without initializing it, I'd assume that the same thing could be done for any other drive. I've got some external drives with hundreds of GB of data which I'd like to encrypt. Disk Utility lets do it by erasing the drive and encrypting the data written afterwards.
Is there any hidden feature that allows one to convert the drive without erasing it first, like the FileVault utility did for the boot drive (even when working on it!)?
Info:
MacBook Pro, Mac OS X (10.7.4)
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Jun 14, 2012
After backing up my data and then swiping my hard drive using Disk Utility, my OS seems to have been uninstalled as well. Is there a way to recover the deleted information and go back to the last working configuration? I'm on a MBP IC2D 2.16 w/ Lion.
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Jun 24, 2014
After deleting about 500 emails and going to erase deleted messages the memory available on my hard drive did not change. Should it? Do emails not take up any memory?
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Jun 17, 2014
I have a mid-2011 iMac (with Mavericks OS), and am doing a clean install before giving my computer to a relative. I performed a secure erase of my entire harddrive (using disk utility), reset the NVRAM / PRAM (but it only chimes once even after I tried several times), and now I get the grey screen even when I try to boot from CD, safe boot, or any other commands. I can't even get back into the disk utility.
On a side note, I have the install DVD in the DVD drive and I can't get that out.
Info:
iMac, OS X Mavericks (10.9)
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Mar 24, 2010
I am having the biggest trouble with a usb drive.
A while ago i needed to format a usb drive to have a bootable linux image on it because a server at work didnt have a optical drive. So i had a big fight with my usb drive to make it bootable and at the end it all worked fine.
Anyway now i need the usb drive and i cant write to it because its read only and diskutil doesnt let me do anything to it...
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Sep 21, 2009
I have a Mac Pro with several raid array and single drives attached (1x Wiebetech RTX600 Raid 5 through SCSI; 1x CalDigit HDElement Raid 5 through miniSAS; 4x internal drives).Unfortunately, due to various reasons (electricity outtage and software crashes), I'm experiencing system crashes and need to hard re-start the system. Upon restart, I am able to boot back into Mac OS X, but sometimes one, or both of the raid arrays will not mount.However, after a period of 0.5 - 2 hours, the array would magically re-appear again. Sometimes this might even happen to internal drives that I had mounted inside the chassis of the Mac Pro.
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Feb 26, 2010
I am wondering if anyone knows of a good osx based alternative to Process Explorer on windows - what I'd like to be able to do is graph CPU and memory for a specific process and ideally see what network connections a specific process has open. atMonitor seems to do this pretty well generally, but not for specific processes (this is for monitoring a multiplayer flash game).
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Nov 3, 2010
I know Macs don't play nice with NTSF drive and I don't need to do anything with it, other then to plug in a new 1.5TB drive I have and convert it into NTSF so I can plug it into my server.
Anyway I can format it because Disk Utility only gives you Fat32
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Oct 14, 2009
I am trying to format a 4gb USb flash drive and I just can't seem to figure out how. I saw some people say you have to empty the trash while the drive is plugged in, but that doesn't seem to work either.
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Jun 23, 2010
So my exact problem is that I usually use my Flash between my Mac and other PCs. And I just installed OSX Snow Leopard from my 8GB Kingston Flash. Now I know to use Disk Utility to reformat to MS-DOS (FAT) to be able to to use it between the to OSs again.
So I do that but PCs won't read it and ask me to reformat it again. I'd happily do that cuz I know as long as it's in FAT or FAT32 the two OSs will be able to read and write from each other. But the PC only recognizes 200 mb and when I do reformat it on the PC there are now 2 different Partitions. One being the PC's 200 mb in FAT and the other Mac's almost 8GB MS-DOS.
I've tried a few different things too. I've tried Partitioning the whole thing over again int MS-DOS after having erased everything. Which I see only causes the Flash drive to shrink from 8.01 GB to 7.80GB and still isn't readable by a PC.
Then I tried Erasing it to free space but PCs still don't recognize it and still ask me to reformat the 200mb is sees on the Flash.
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May 18, 2010
I have a 500GB hard drive in my laptop, I partitioned it and I put 80GB for Windwos and then the rest of it for MAC, I don't know how but I somehow got rid of the Windows. I ejected the BOOTCAMP on the Desktop of the Mac OS X and then I tried to delete the partition but it didn't work. Now I tried to go to BootCamp Assistant but It doesn't show that I have partitioned hard drive. It shows me that I have only 420GB and it shows only my Macintosh HD. The 80GB are lost somewhere. Tell me how can I format the whole hard drive and get the 500GB again? And i want to do it while the hard drive is in the laptop and is working? Is there any way of doing that(it is fine if i have to install the OS again) Or what do i have to get done so that I can fix it?
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Jul 8, 2009
I'm switching back to PCs for now, what is the best way of getting all my data over? The external HD is Mac OS X "Journaled", what would I need to format it to for Vista to read it?
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Sep 14, 2009
I've just made some space on a USB passport drive and made a FAT32 partition in windows with partition magic (I already have files on it that I needed to keep). Now should I let time machine reformat, it'll only wipe the partition right? Or should i format it with disk utility? I'm thinking I can let time machine do it's thing but just double checking as I've managed to wipe a whole hard drive of data before now trying to make new partitions.
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Apr 18, 2009
I have a G4 Powermac dual 1.25 with a 160Gig drive which is partitioned into two. I'd like to reformat the drive as a single partition. I have booted from an OS X CD but can't find a way with Disk utilities to 'UN-partition' the drive(s).
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