Commonly used to refer to Disk Utility.app, an application included with OS X.

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MacBook Air startup disk not found, but verified

I have a MacBook Air that has suddenly stopped booting at all. I booted into recovery mode and see the harddrive fine in Disk Utility. The partition is there as well marked: Mac OS X Base System. I ...
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1answer
1k views

What are “Missing thread recordng” erros when running fsck -fy?

There is some error reported when I run Disk Utility and verify the root volume on my OS X MacBook. So I boot and CMD-S into the shell mode and run /sbin/fsck -fy. Errors are like: ** Checking ...
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38 views

Unable to open a dmg file error “file too large”

I created a dmg file of a 16 gb USB flashdrive a few weeks ago that was formatted fat32 and I am now unable to open the file. The file is only 804mb, but when I try and open it, I get an error window ...
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1answer
2k views

How do I reformat an unmountable/unrecognised/unformatted USB drive?

How do I reformat an unmountable/unrecognised/unformatted USB drive? It will not mount or format on Windows Vista or OSX Tiger. Disk Utility sees the hardware, but no partition to mount. Testdisk ...
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13 views

Gnome Disk Utility: Cannot change passphrase

Specifications: Gnome Disk Utility v.3.0.2 running on 12.04 LTS on a generic AMD64 box used to partition a HDD interfaced via SATA and create the file-system. Options defined were the following: No ...
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2answers
1k views

How do you format a 2GB SD card to FAT32? (Preferably with Disk Utility)

I've been looking around for a way to do this for a while, but haven't been able to find the answer. I need to format my 2GB SD card to FAT-32, but I don't see the option in Disk Utility. If I ...
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3answers
2k views

Formatted USB flash drive with Disk Utility on Mac and now it is not recognized on any Mac or Windows machine

I have formatted Canyon CN-MP4A USB flash drive with Disk Utility on Mac and now it is not recognized on any Mac or Windows machine. I have formatted with Disk Utility > drive > Erease > ...
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2answers
33 views

palimpsest not opening the disk management

I am using Ubuntu. I found from web search that to open Disk management below command is needed: sudo palimpsest But when I am trying it in the terminal and result was : command not found. I also ...
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6answers
36k views

Fix bad blocks on Mac hard disk

I have a hard disk that I scanned with TechTool and it reports one bad block. As far as I can tell, TechTool only scans and reports a failure. It doesn't fix anything. Back in the day, Norton Disk ...
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4answers
107 views

Is CHKDSK a warning sign of failing drive?

This morning CHKDSK ran on its own during boot. It scanned 1 out of 3 HDDs in my PC. Is it a warning sign that that particular HDD is about die?
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62 views

Not enough disk space when doing a SOAP request on mac osx

I'm on Mac osx, I'm sending a SOAP request and the response is: There is not enough space on the disk. <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"> <s:Body> ...
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2answers
49 views

is there a remote version of KDirStat

I love KDirStat (or equivalent) but I would like to be able to run it on remote host (which doesn't have X11 installed). Is there anything avaible (and free) which will allow me to get a treemap of ...
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4answers
2k views

Enlarging disk partition on Mac OS X

I have deleted the primary partition from my computer, and installed Mac OS Lion on a second. Now I want to enlarge the "Lion" partition, to make it fill the whole drive. I've been struggling to ...
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1answer
124 views

I want to reformat my external hard disk but disk utility said it could not be unmounted

Hi I wanted to reformat my HP 500GB hard disk to MS DOS (FAT) by using Disk Utility but Disk Utility kept saying that the hard disk cannot be unmounted. I tried googling it but nothing seems to answer ...
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2answers
1k views

PerfectDisk 11 (Defragmenter): Difference between layout.ini management options

I would like to ask what is the difference in Windows 7 between these two settings in managing layout.ini and files needed to start the computer in PerfectDisk 11 Professional: (1) 'Let PerfectDisk ...
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46 views

Cannot run diskutil, sudo or not

I cannot run diskutil on my brand new Retina Macbook Pro 2012. When I try to run it, (including sudo), the terminal says "command not found". I looked in usr/bin and usr/sbin and could not find ...
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2answers
8k views

How can I resolve the error “MediaKit reports partition (map) too small”?

I am unable to expand my Mac's hard disk. diskutility reports this error: MediaKit reports partition (map) too small How can I resolve this?
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68 views

Frequent Mac lockups due to fsck_hfs

My Macbook Pro (10.6.8) locks up every day at noon for several minutes (and often after sleep). I put 'Activity Monitor' up front right before noon sorted by %CPU, and saw that it ran 'fsck_hfs'. ...
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1answer
44 views

Use sparse image bundle instead of split and concat

Is it possible to use sparse image bundles on the Mac in the same fashion as I would use files splitted with Terminals split command? If I show the package contents of the sparse image bundle in the ...
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2answers
379 views

I forgot my encrypted disk password on OS X

My disk is formatted with Mac OS Extended (Journaled, Encrypted). I have a super long and random password. It won't let me paste my password in and I keep manually typing it wrong. There is nothing on ...
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4answers
22k views

Cannot resize OS X partition

I am trying to resize my existing Mac OS Extended partition on my Macbook to install Windows 7 (using steps similar to these), but when ever I go to apply the changes, I get this error: ...
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2answers
103 views

Ubuntu Disk isn't showing up at Boot

I recently installed ubuntu on a flash drive, following all of the instructions on the ubuntu website. When I started up my mac, it didn't appear in the boot menu. Has this happened to anyone else ...
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0answers
23 views

How to back up “The disk has S.M.A.R.T. errors” and fix the errors [duplicate]

Possible Duplicate: Repair or recover drive from Mac OSX recovery mode My computer won't start up past the login screen so first i tried Safe Mode [Shift+Start up] didn't work . Then I ...
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1answer
558 views

Macbook Pro Hard Drive won't show up on disk startup

I have a Macbook Pro from 2007. It came with an installation CD for 10.4.8. The first problem is that it won't even recognize the installation CD even though the CD seems perfectly fine. So I used ...
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153 views

Recover from botched full disk encryption using FileVault2

I decided to enable full disk encryption using FileVault2 in OSX Mountain Lion, but near the end of the encryption process, I get a message telling me that it failed, and that I should disable and ...
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4answers
3k views

How is OS X Disk Utility's secure erase mode in comparison to other commerical secure delete methods/apps?

Within OS X, the utility Disk Utility has a secure erase for hard drive formatting. It has 1,7, and 33 pass options, which to my knowledge are very good writting random data to the drive. What does ...
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1answer
122 views

Verifying permissions on OSX

Last week i was having trouble installing homebrew onto a new mac running mountain lion, i tried adding command line tools for xcode and installing X11 aswell as following a load of other things i ...
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5answers
5k views

Hard Drive Bad Sector marking utility

I already have Windows XP, During installing Ubuntu(dual boot) the disk drive just stuck up at one place and doesn't seem to move ahead.. Is there a disk bad sector mark utility that just marks these ...
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85 views

System Does Not Boot From Various Bootable Recovery Disks

No matter what recovery system I have used, be it Acronis recovery disk or some other recovery disk that is intended for emergency system restoration, my system just stalls but still responds ...
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1answer
7k views

Is there a way to make Windows 7 install .iso onto USB drive from OSX?

I copied my windows 7 cd to a ISO and trying to source the image onto my USB drive from OSX. So far it doesn't seem like it's possible with disk utility. Is there something else I can do to make this ...
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2answers
80 views

Safe and fast way to move a partition to begining of disk?

How can I move a partition to beginning of the disk in a fast and safe way?
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3answers
6k views

External hard drive only visible in System Profiler, doesn't mount, not visible in Disk Utility (Mac)

I have an external hard drive that does not mount to my Mac laptop, nor is it visible in Disk Utility. It is, however, visible in the System Profiler under the USB section. Any suggestions as to how I ...
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1answer
104 views

Create .img of a disk from command line?

I need to create a .bin or .img of a disk from the command line. I have tried using rawcopy (an .exe that I downloaded from the internet), but that is rubbish. Does anyone know of other ...
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3answers
2k views

How do you access the contents of a mounted DMG drive mounted through hdiutil and diskmout

My external USB drive failed. I made a .dmg image file of the drive using disk utility. Later I was not able to mount the .dmg image. I used terminal hdiutil attach -noverify -nomount name.dmg ...
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2answers
298 views

Mysterious “media” volume mounted on desktop Mac OS X

I have a mysterious volume mounted on my desktop that I can't seem to forcibly unmount. I've tried using umount and also diskutil, but it seems to automatically remount itself. I've copied my hdd with ...
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3answers
2k views

Equivalent of badblocks on Windows or DOS

Is there a utility in DOS or Windows that is as thorough as badblocks on Linux?
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347 views

Diskwarrior 4.4 rebuild won't see disk

I'm having a bit of trouble with my hard disk and disk utility can't 'repair' it. I have DiskWarrior 4.4 but when I start up with it it won't 'see' my Hard Drive (although I can see its SMART status, ...
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260 views

OS X 10.7 and 10.8 continuously going corrupt on several machines, disk unable to repair, requires clean install

I'm managing about a dozen iMacs varying in age from 3 years to 6 months. Every iMac has an afterparty 256GB Crucial M4 SSD, which have all been installed since roughly the beginning of the year. ...
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550 views

Create disk image from flash drive

I have a 16 gb flash drive that is formatted using my mac, made bootable, and an OSX installation image put on it. I'd like to keep that drive around so I can do it again in the future, but I don't ...
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6answers
22k views

Util to check external USB Drive health?

I tried a few utils and none of them worked. Either USB wasnt supported or the drive was 'recognized'. I am trying to figure out if i should dump the drive or not. Its only a year old but the warranty ...
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1answer
2k views

What can I do when I get a “Cannot Allocate Memory” error after restoring a disk image?

I've downloaded Mac OS X Mountain Lion today and wanted to backup the installation image to a USB drive for later. I've created a new empty partition of at least 8 GB size on the external drive using ...
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1answer
196 views

External USB hard drive acting like internal drive

The power went out and my external hard drive got pretty messed up. After several repair attempts I gave up and tried formatting the thing. I wasn't watching, but I believe Disk Utility hung on ...
2
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3answers
4k views

Truecrypt or default Disk Utility on Mac?

Windows by default doesn't come with a password protect folder option (other that Win7 ultimate), so I used to swear by Truecrypt which was great. But I've read in a couple of places that Mac OS X by ...
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0answers
138 views

How can I create a partition for OSX without erasing other partions on the disk?

I'm trying to install OS Lion on my desktop using uniBeast. I want OSX to be on the same disk as my Windows 7 installation, but the installer's disk utility won't let me create a new partition out of ...
2
votes
1answer
764 views

What does the Boot Camp Assistant do to my drive that I can't just do with Disk Utility?

What I understand is that Windows 7 will not install on GPT (GUID Partition Table) drives. Of course, all new Macs have their drives partitioned that way, and when you run the boot camp assistant, it ...
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0answers
804 views

USB Drive cannot detect in Windows 7

Have you ever plugged in a USB drive or any external device with a hard drive and wondered why you cannot see it in My Computer? I often have, I believe my USB is not broke .. because if I plugin the ...
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1answer
874 views

Carbon copy cloner vs Disk Utility save disk image

im trying to replace my macbook pro hard drive and want to migrate the lion and windows 7 partitions to the new drive without having to reinstall anything my question is.. What's the difference ...
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0answers
53 views

Zerofree never ends. Is it doing anything?

I have been trying to use zerofree to reduce the size of my VM. It worked fine for one filesystem, but the other was mounted on / so it wouldn't let me. Then I figured I could use the 'recovery ...
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2answers
722 views

Tool to retrieve information about which hard-disk is connected to which disk-controller (Windows)?

When servicing servers I often find lots of various disks connected to several HD-controllers. To find and replace a specific disk in a server filled with disks often becomes rather tedious. So the ...
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3answers
409 views

Automated Clonezilla like backups?

I have a laptop with two hard drives; one SSD (64gb) and one HDD (750gb). My SSD contains important files and OS (Windows) files. I would like to store an image of my SSD on my HDD for backup ...

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