OS X :: Formatting USB Hard Drive Without Disk Utility?

Dec 11, 2009

I've got an 8GB Sony Micro Vault Pen Drive that's stopped working. When I opened up Disk Utility it appears but doesn't give me the option to erase.

Can I try doing it with anything else before I bin it and buy a new one.

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OS X :: Formatting USB Drive Under NTFS Using Disk Utility?

May 18, 2009

I have a USB key and would like to format it under NTFS, under Disk Utility, there isn't that option. I don't really have time to google this, does someone know what to do? Is there a console command to do?

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OS X :: Disk Utility - Formatting A Partition Without Erasing The Whole Drive?

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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OS X V10.7 Lion :: Disk Utility Can't Repair Disk (1 Partition) On External Hard Drive

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.

iMac, Mac OS X (10.7.3)

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MacBook Pro :: External Hard Drive - Disk Utility Can't Repair Disk

Jun 27, 2014

I have a Seagate 1 TB Backup Plus Drive which was working perfectly fine until I plugged it into a USB hub. It detected it while in the hub and I was able to get files off of it, but when I ejected it from the hub and put it back into the USB slot on the computer it was not detected by finder. It shows up in the disk utility and I clicked verify and repair and it says:

Verify and Repair volume “Seagate Backup Plus Drive”
Checking file system
Volume repair complete.
Updating boot support partitions for the volume as required.

Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files. 

Is there any way to get this to work properly again? Or if not is there a way for me to recover my files on the external hard drive? 

I have a Macbook PRO late 2011 running OS X Mavericks.

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Software :: Installed Disk Utility And Disk Repair - Shows Network Startup But No Hard Drive?

Feb 22, 2010

I ran installer then went to disk utility and pushed disk repair. it ran and indicated in green that no repairs were necessary. i then went to startup disk and only the Diks and network startup showed up but no hard drive. i also open computer to make sure was not wet muddy due to leak in cooling system but all was dry

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OS X :: Mac OS 10.5.5's Disk Utility Formatting Ext. HD Differently From 10.4?

Nov 11, 2008

Mac OS 10.5.5 Disk Utility not formatting Ext. HD properly.I was originally able to use my external Hard drive Seagate 300GB right out the box without formatting on my Phillips DIVX-compatible DVD players as well as my Sony PS3 to watch .AVI and MPG files on TV.

Well, last night I needed to swap some files via Time Machine and had to re-formatted my Ext HD. So once that is done I go to format back with Mac OS 10.5.5's Disk Utility, but this time using the MS-DOS (FAT32) option since that is how it will work with the DVD players and PS3. But the drive wasn't recognizable with either DVD players or Sony PS3.

Now here's the kicker! I had my old iBook with Mac OS 10.4 and decided to format the drive using it's Disk Utility version and now the drive is recognizable on both DVD players and PS3.Obviously something is different with the latest version of Disk Utility on Mac OS 10.5.5! Does anyone know why Leopard Mac OS's Disk Utility is formatting differently than previous versions of Mac OS? What's the deal here?good thing I didn't give away my old iBook... Is this an Apple conflict or ???

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OS X :: Disk Utility - Formatting HD To Mac Extended (Journaled)

Aug 22, 2009

Just got a HD and I tried to format it to Mac OS Extended (journaled) From a MBR. After the erase is done it's still MBR!

HD Detail:
Name : FUJITSU MHV2120BH Media
Type : Disk
Partition Map Scheme : Master Boot Record
Disk Identifier : disk1
Media Name : FUJITSU MHV2120BH Media
Media Type : Generic
Connection Bus : USB
USB Serial Number : 000000000033
Device Tree : /PCI0@0/USB7@1D,7/@3:0
Writable : Yes
Ejectable : Yes
Mac OS 9 Drivers Installed : No
Location : External
Total Capacity : 111.8 GB (120,034,123,776 Bytes)
S.M.A.R.T. Status : Not Supported
Disk Number : 1
Partition Number : 0

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MacBook Pro :: Won't Fix / SDHC Disk Utility Formatting Error

Sep 30, 2010

I am trying to format a SDHC card on my MBP. I am trying to create a recovery SDHC disk for my MBP.
The disk is a Transcend 16gb (class 10).

I formatted to Mac OS Extended (Journaled) w/ a GUID Partition Table but after this, Disk Utility is now showing only 10.38 gb of usable space, but finder is showing me the full amount (15.79 gb). When I look in finder there are NO files or folders on the drive.

I tested trying to put more than 10.38 gb worth of files on the disk and was told there was not enough space. If I format the disk to anything other than Journaled, I get the full 15.79 gb. Has anyone ever experienced this before?

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Mac Pro :: Unable To See Hard Drive In Disk Utility?

Aug 5, 2009

I ordered a second hard drive for my powermac g5.Its a 400 gig seagate drive.I power off my machine,unhooked everything and plugged in the drive.

I boot up and the drive isnt showing in disk utility.Is it something i did?

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OS X :: Hard Drive Backup - Do Not Have Disk Utility

Jan 4, 2010

I am going away traveling and need to back up all my stuff off of my mac for the first time.. (pics, music etc the usual). I brought a WD Elements 500GB External Hard Drive and when I plug it into my mac book (OSx) it appears in finder, and the desktop but I can't drag and drop nothing into it. Apparently I have to format it! So have researched about formatting it, but I don't have "Disk Utility" in my utilities? My Mac was given to me from a friend second hand so i don't have the disks etc to get it. Any other way of formatting my Hard drive or a link to download disk utilities or any alternatives!

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MacBook Pro :: Disk Utility Can't Fix Hard Drive?

Jan 19, 2010

the past couple of days my new macbook Pro (only had it a couple of months) has been really slow to boot, with a grey progress bar that I have never seen before. I googled it, and you all know what i found.

So I ran the disk utility, and selected analyze or whatever the button is, and it said I should load it from the INstall DVD, as the disk needs repairing.

Guess what. The disk cannot be repaired.

An error message about expecting 31 files but only finding 30?
It recommends erasing the disk and reinstalling from scratch.

Now, as far as I can see, apart form the slow boot times, everything else still works. Does this mean that it is just a ticking time-bomb that will break any time, or is just a couple of corrupt files that don't matter?

This is really annoying, I love my Mac, but having to reinstall so soon after purchase?

Apologies if there any other posts on here already, it is late, I am stressed, and would like a nice person to help me out.

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OS X :: Disk Utility Partition Erased Hard Drive?

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:

I clicked Partition, and it finished very quickly. I checked Finder, and the entire drive, BOTH partitions are completely empty.

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MacBook :: Won't Recognize New Hard Drive - Even In Disk Utility

Apr 13, 2010

My macbook hard drive crashed, luckily I had just backed up everything. I went and bought a new 320 GB hard drive, I researched and I know it's compatible with my Macbook. I decided to install windows 7 on it first, but the windows 7 installer wouldn't recognize my hard drive. (For the record, my Matsushita superdrive will not read DVDs anymore, only CDs, so I created bootable copies of both my Mac OS X install disk and my Windows 7 install disk, and I've been using a bootable rEFIt CD to boot from my USB flash drive.)

So I booted up the Mac OS X Snow Leopard disk and started disk utility - it recognizes the rEFIt CD, it recognizes the flash drive, but no internal hard drive. The partitioning tool in rEFIt doesn't recognize it either, but I know it's seated correctly because I can hear/feel it booting up with the computer (if i remove the battery and boot with the computer plugged in). I also know it works correctly because I installed it in my girlfriends PC and it recognized it just fine, I even installed Windows 7 on it, hoping the macbook would boot from it.

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MacBook Pro :: Can I Use Disk Utility To Clone Old Hard Drive To New MP?

Apr 18, 2010

Can I make a disk image of my current MB Pro (early 2008) and copy it to my new i7 MB Pro to retain all my docs and programs?

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Hardware :: Can You Format A Hard Drive For PC With Disk Utility?

Jul 23, 2010

I'm selling a hard drive that doesn't work when formatted for Mac so I need to sell it PC format. Will MS-DOS (FAT) work, and does it need to be set to Master Boot Record?

I have a PC I can test it on but I just want to now what to do before I try it out so I don't keep having to switch between computers.

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MacBook Pro :: Disk Utility Does Not Detect Hard Drive

Aug 2, 2010

Just installed a new HDD into a macbook pro that was dropped. Seems fine, loads the disk and then says it can install the OS, i load up disk utility and theres no hard drive int he list just the optical drive and the DVD, its not the disk that came with the mac itself its either my proper retail one or the one that came with my personal older macbook which might be the issue. Ive taken apart and reconnected the HDD and all seems fine internally. Are there any issues that cause this except not using a full retail disk which im going to try later on, just wanted to rule everything else out.

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PowerPC :: Disk Utility Can't Find New Hard Drive?

Aug 18, 2010

I have a dual 1.25 ghz MDD Powermac G4. It was working fine until a couple of days ago. It froze up, I restarted it. I got a blank blue screen.

Also, the computer made some awful clicky noises that I've never heard before.

I booted from the OS X installation CD. Disk utility lists the WD1800 hard drive, but I can't do a re-install and there's no option to repair it.

I can't erase or partition it because when I try, I get a failure message saying it can't be done ("chosen size not valid for chosen filesystem"). The HD is listed in system profiler... with a capacity of 0 bytes.

I assumed that the hard drive had died, so I went to a local PC shop and bought the only IDE drive they had (a Maxtor 6l250r0). I installed it, then booted from the OS X CD.

I know that new hard drives need to be formatted, but I assumed that this could be done with disk utility.

But disk utility can't find the new hard drive, doesn't list in the left column. It shows the optical drives and the install CD and the old WD hard drive which can't be erased or repaired, but no new hard drive.

It's not listed in the system profiler, either.

I checked the cable connections and tried installing it in the front carrier rather than the rear, but nothing works - disk utility and system profiler can't recognize it.

The only other desktop mac I have access to right now is my old 450 mhz Sawtooth G4. I tried putting the HD into the sawtooth and got the same results - disk utility and system profiler can't find the new HD at all, but has no trouble finding the old 20gb HD and the DVD and zip drives.

I'm... not really sure what to do here. Am I doing something wrong?

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Intel Mac :: Disk Utility Can't Find Hard Drive

May 7, 2012

I had to power off my iMac by Pressing the power key and holding it several times over the last few weeks. The last time it wouldn't reboot - I'd just get an apple icon. When I tried a safe boot I'd get the icon and it would change to a no entry sign.Next I started up from the snow leopard installation disk with the intent of repairing the iMac disk. The installation disk worked but when I opened disk utility it only found the installation disk. It didn't find the iMac disk.

Info:iMac, Mac OS X (10.6.5)

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MacBook :: Replacing Hard Drive - Nothing Show Up In Disk Utility

Aug 31, 2010

The HDD in my wife's black MacBook (2007, I think) won't boot up. I've run Disk Utility and have decided it's pretty much dead. I have a Carbon Copy backup, so the data is fine. I've tried replacing the drive twice now, and the MacBook simply won't "see" the new drives. When I install the drive, nothing shows up in Disk Utility (run either from the install disc or the Carbon Copy backup drive in a USB enclosure).

The new drives are formatted (I even copied the bootable backup to one of them), and the computer sees them just fine if I install them in a USB enclosure and hook them up that way. When I put them in the computer, though, no dice. Her old, corrupted HDD still showed up in Disk Utility when I reinstalled it, but the new drives don't.

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OS X :: External Hard Drive And Disk Utility Erase Options

Oct 17, 2010

I have an external hard drive that was used on a PC. I want to use it on a Mac. I went into disk utility and did an erase. (Extended Journaled and in security options changed it to zero out data). I can now use it on the Mac how ever it is telling me that there is 54.1 MB of used space. I want to have access to this. How do I do it?

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Hardware :: Will Disk Utility Partitioning Erase Hard Drive?

Dec 19, 2010

I have a hard drive with about 250 gb of film and music on fbut it's formatted as HFS+ which windows cant read! I need to partition the drive to make windows be able to read at least a portion of it. But If I run disk utility and create a partition will it erase the info I already have on there? I don't have this data else where so I hope it wont!

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MacBook Pro :: Hard Drive Disappears From Disk Utility Completely?

Dec 25, 2010

I got a second hand macbook pro on tuesday, it is the 13" 2010 model and is two months old. However it keeps causing me all kinds of problems, and I am not sure if it is my fault, a hardware fault or something else. I'll describe what I've done to it; When I got it I wiped the hard drive and did a clean install of OSX, then I imported everything from my old mac through migration assistant. However when I then started using my new mac, the 'home' folder was a different name so some files didn't match up, like my dropbox account and some games. I don't know if this has caused other problems within the directories or anything like that.

It is usually fine for about 6 hours, it's pretty quick and I have been through disk utility in this time and the verify process has been ok. However after this time the it starts being really slow. Like I'm talking 10 - 15 minutes to open an application. Every time this happens I open disk utility to check on it, and it always needs to be repaired as there are folders and directories missing. However when I turn it off and go into disc utility through the install disc it doesn't let me repair it as the drive cannot be unmounted, but then the HD disappears from disk utility completely.

On top of this I tried to install XP through boot camp earlier, but the partition wouldn't format, so I went back through boot camp assistant and deleted the partition. However whenever I turn it on I have to hold down the command key and select the Macintosh HD, because if i don't it tries to boot into windows, even though the partition has been deleted and the HD merged back into the Mac HD. When I boot through the command key, the only option there is the Mac HD, so I don't know where it is getting windows from.

The battery is not what I expected in this thing either. I have put this on another post but I wanted to complain about it again. I have noticed that on a full charge i only get 6 - 7 hours browsing the internet, way off the 'approximately 10 hours'. When I go into istat menus apparently it has a cycle count of 68 and the health of the battery is 89%, which seems very low to me. Whenever I do manage to get it to turn on, it never remembers my settings for the back lit keyboard or the screen brightness. They are always on full whack even though I turn them down to half every time I use it.

Basically, on this fine christmas day (don't get me started on that, the dog got more presents than I did and now my mum is singing Susan Boyle at the top of her lungs) I was wondering if any of you could help me with these problems? I'm thinking I may just have to wipe the HD again and reimport everything manually but I really don't want to do that. I do love Apple Macs and I don't want to get rid of this thing, but it is driving me mental. I turned the Macbook Pro on when I started writing this on my old Macbook. It is now 8 minutes later and it has still not booted. It is just sat there looking all smug with the spinny thing below the apple on the grey screen.

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MacBook Pro :: Disk Utility Says Internal Hard Drive Is Failing?

Dec 28, 2010

However, my hard drive appears to be running fine - haven't noticed any degradation of performance since receiving the warnings two days ago. And HD is still running quiet (no strange mechanical noises I'm accustomed to hearing prior to a failure). Nevertheless, I'm installing a new HD tomorrow and recloning it from a backup external drive (operating from external until then).

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OS X :: Hard Drive In Disk Utility Showing Different To Macintosh Hdd Image

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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OS X :: Disk Utility Stuck Whilst Wiping Hard Drive?

Apr 4, 2010

I'm getting ready to sell my old Powerbook G4 so booted up from the installation CD, and ran Disk Utility to do a 8 Way Random Write pass on the Mac hard drive before I did a clean install (the disc is Mac OS X 10.3.7).

I selected the top option in the drive panel of Disk Utility (the one saying 92.2GB Hitatchi blablabla) rather than the indented disk beneath it.

All went fine doing the overwrite, however it seems to have become stuck on "Creating Partition Map" - it's been like that for half a day now. Any thoughts? Should I have chosen the indented drive underneath the main description?

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Mac Pro :: External Hard Drive Seen In Disk Utility But Partition Won't Mount?

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?

Mac Pro, iOS 7.1.2

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Hardware :: Hard Drive Got Smaller After Force Quitting Disk Utility

Jun 21, 2009

I force quit disk utility after trying to write 0's. Now instead of a 100 gb hard drive, i have a 93.8 gb hard drive. is there anyway to completely wipe this hard drive and start all over to recover my lost space?

93.2 GB (100,030,242,816 Bytes)
Capacity:93.16 GB
Capacity:92.84 GB
Available:78.99 GB
File System:Journaled HFS+
BSD Name:disk0s2
Mount Point:/

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Applications :: Big Hard Drive And Disk Utility In Tiger Says Secure Erase?

Dec 17, 2010

I try to securely erase big hard drive and Disk Utility in Tiger says Secure Erase. Pass 1 of 7. Estimated time 123 hours

Is this progress bar only for erase 1/7 or for all 7 passes (1-7/7)?

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Applications :: Can't Modify External Hard Drive Partition With Disk Utility

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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