Apple's built-in disk management utility for the mac. Erases, formats, and restores volumes and drives.
1
vote
2answers
269 views
What's the tool that can do some actions when a file is copied?
I use Cmd+L to make a alias, and the alias has "alia" appended to the original file name. I move the link to a directory, then remove the "alias" part manually.
Is there a tool that can do this kind ...
8
votes
1answer
204 views
I know how to repair disk permissions. But… Who broke them?
One of the common Mac troubleshooting steps everyone always seems encouraged to try first is to "repair disk permissions" in Disk Utility.
This process usually finds random odd problems, fixes them, ...
0
votes
1answer
130 views
Extract a disk image without diskimagemounter
I have an account on a school system where they won't allow us to mount virtual images. I can run arbitrary programs as a user, though not as root. I've tried mounting it from the command line using ...
4
votes
2answers
1k views
What are “dmgpart” files and what tools can create, merge, or manage them?
I downloaded something that came as three large files: One was a *.dmg (a disk image file, which I expected) and two more were *.dmgpart files, which I haven't happened to see before – I never ...
3
votes
2answers
1k views
Format SD card with FAT and custom file allocation unit size
I'm using Maverick (a offline mapping application) on my Android device which has thousands of files in the tile cache with a size of 168 byte. The SD card is formatted with a file allocation unit ...
1
vote
1answer
380 views
Why is my boot partition listed as Unmounted in Disk Utility?
I recently experienced a kernel panic ("your mac must restart...") due to an issue with Macfusion, so after the reboot I loaded Disk Utility in an attempt to verify the disk in case something was left ...
2
votes
1answer
2k views
Do persistently incorrect disk permissions indicate a disk should be replaced?
Something is wrong with my Mac, as indicated (and still unresolved) in the question:
What is the Sixth Step of MacBook Repair?
One possibility is that the main disk is faulty.
Disk Utility reports ...
3
votes
2answers
1k views
How can I mount an encrypted disk from the command line?
When I type diskutil mount disk3 in the terminal, it says Volume(s) mounted successfully. However, the disk is not mounted and I can confirm this by opening the GUI of Disk Utility.app and also the ...
1
vote
1answer
296 views
Recover files from one volume to another on the same Drobo?
One evening we had a momentary power outage, causing sudden shutdown for my Mac mini and the attached Drobo (4 bay). When the system came back up, only one of the two volumes mounted on the desktop. ...
3
votes
3answers
6k views
Deleting a partition in Disk Utility fails. (Error: -69879)
This is the output in Disk Utility:
Disk Utility cannot modify this disk because it contains CoreStorage
physical volumes. Use command line distil instead.
The selected partition won't be ...
1
vote
1answer
441 views
What is the blue section of a partition in Disk Utility?
What is the blue section at the top of this image (above Macintosh hard drive partition)? Is it another partition, it only seems to exist on this partition when I create a new one. Where do I find the ...
0
votes
2answers
166 views
Checking number of reallocated sectors of HDD through Disk Utility, Mac OS X
My MacBook was purchased in 2008. Yesterday I checked the number of reallocated sectors of the hard drive using Disk Utility. It showed there were no reallocated sectors. That seems strange since I ...
7
votes
2answers
534 views
Move complete Lion installation to another physical drive
is there a way to completely move my OSX Lion to my new SSD without reinstalling? I came from Windows and Linux to OSX and i thought maybe it is possible to simply change the bootloader config after ...
3
votes
2answers
561 views
Disk utility in command line
I'm looking for the CLI equivalent of "Check disk" and "repair disk" in Disk Utility. I think fsck is involved but I don't know with which options, and if it's the only program run.
0
votes
0answers
1k views
Why can't I write to the last block of my SDXC card on my MBP?
I have a 64GB SanDisk SDXC memory card which I would like to use with my MacBook Pro and its SD card slot. However, I am having some trouble formatting/partitioning my SD card and I can't figure out ...
4
votes
4answers
2k views
How do I repair permissions of a specific directory?
I want to repair permissions of a user defined directory along with it's subdirectories. How can I do this?
So far, I've looked for options in finder and tried to drag the folder into Disk Utility. ...
0
votes
1answer
721 views
Solving a problem on a MacBook Pro 5,1 with an OCZ Agility 3 SSD
I installed Mac OS X lion on an SSD (through USB) after checking the firmware was the latest version (2.15). When I transferred the SSD into the MacBook Pro (like i usually do after an install) but it ...
8
votes
7answers
6k views
What format for my external drive allows use with Mac and Windows?
How can I use my external hard drive on Mac OS so I can modify/edit files on both OS's: Mac and Windows? How should I format it?
3
votes
1answer
189 views
How do I format a (non-formatted) drive when the menu options in the Disk Utility are greyed out?
So I tried installing Lion on an old (white) Macbook, but first I wiped by my drive clean. Just to find out that I only had 1GB memory and Lion requires 2GB.
Now the drive is clean, with no ...
0
votes
1answer
533 views
invalid ISO file created by disk util?
In order to install Windows XP on Virtual Box at my new MacBook Air, I need to create an ISO file of my WinXP install CD. My Laptop (MacBook Pro / Lion) comes with the Mac Disk Util and that app can ...
1
vote
1answer
426 views
OSX Lion Disk Mounter
I seem to have broken something in my OSX Lion install. Whenever I insert a SD/CD-ROM into the machine I have to go into Disk Util to manually mount it. This happens quite a lot and is getting on my ...
2
votes
3answers
4k views
Unable to resize Lion partition
I decided to do a clean install of Lion on a new partition, then after copying my stuff removed the old one. I'm now stuck with 100~ GB of free space and a 20 GB partition that Disk Utility won't let ...
3
votes
1answer
2k views
Why won't disk utility let me remove a partition from my external hard drive?
I have an external 1.5 TB hard drive split evenly with a partition for backup and a partition that was used for Time Machine on my previous computer (OS X Lion).
Now I'm using this hard drive with a ...
1
vote
2answers
6k views
How can I partition my Macbook Pro's hard disk?
I'm about to install Linux on my new Macbook Pro. In order to do this, I need to resize my Mac OSX partition to allow some free space for Linux. I've booted into the Recovery HD and started "Disk ...
1
vote
1answer
539 views
External HD Shows up in Disk Utility, but I can't access it
I have an External 1TB hard drive that has been corrupted, it was so corrupt that I had to abandon the files on it. So now I'm simply trying to erase it so I can begin using it again. But here's the ...
6
votes
2answers
4k views
How do I resize OS X main partition when I already have other BootCamp partitions?
Short story: partition resizing using Disk Utility fails because MediaKit reports no such partition when I try to shrink it. I also tried the same while booting from the DVD, same result.
Details:
...
0
votes
0answers
131 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 ...
2
votes
1answer
523 views
What do Verify Disk and Repair Disk actually do in Disk Utility?
I've recently been suspecting problems with my hard disk and saw another answer here on AskDifferent recommending Drive Genius or Disk Warrior.
I thought I'd start thought by using the built in Disk ...
1
vote
1answer
177 views
On the Mac, what if Disk Utility is used to mirror two hard drives, one is 1.5TB, and the other is 2TB?
If I happen to have two external hard drives, one 1.5TB and then other 2TB, and use Disk Utility to mirror the two drives, will there be any problem?
Can it be mirroring just for the 1.5TB portion, ...
3
votes
2answers
1k views
How can I reformat my hard-drive?
I am in Disk Utility under the Erase Tab. The Format section is grayed out even though I have my main disk selected. The only buttons active are Erase Free Space, but I want to reformat the entire ...
0
votes
4answers
738 views
chmod/chown hfs+ Volume
I have just saved some data from a crashed PC to my external HD, which is a HFS+ Volume using Ubuntu live (regular copy no dd).
Now I am lost: I don't have any privileges in the Folder i copied on my ...
0
votes
2answers
178 views
Ejecting disk after failed mounting
I have a RCA VR5220 voice recorder, with a built-in USB connector.
Because this thing was clearly built by Windows-minded engineers, the only way to access the files in Mac OS X is to plug it in and ...
2
votes
2answers
515 views
Disk utility, shrink 1 partition, expand the other
I have two partitions on my external HDD, I shrinked 1 partition (Macintosh Lion) in order to expand the other (Macintosh HD), but I can't drag the lower right corner to expand of the 'Macintosh HD' ...
0
votes
2answers
638 views
How do I partition my computer for Boot Camp?
I want to create a BootCamp partition on my 13" MBP with a 250 Gb hard drive.
The DiskUtility shows the partition as Mac OS Extended (Journaled).
.
When trying to perform a partitioning with ...
0
votes
2answers
382 views
Help with repartitioning after Bootcamp problems
When I first got my macbook pro I installed windows 7 via boot camp.
A couple months later I wanted to install ubuntu and have a triple boot. I followed this tutorial: triple-boot
After I finished ...
1
vote
1answer
5k views
How can I resize my Lion partition to fill up the unused space on the drive?
My MacBook (Late 2007) has an 80GB hard drive. I used to have a 15GB Boot Camp partition, and deleted it at some point -- but I forgot to resize my Snow Leopard partition to fill the 15GB of free ...
1
vote
2answers
192 views
Software/utility to completely erase cookies/cache
What software (or using any other in-built tools) can I use to clear (by clear, I mean scrub from the disk) the cache & cookies in browsers, without affecting the bookmarks etc. I use firefox 4.
...
1
vote
1answer
129 views
Can you run Disk Utility from bootable lion disk?
I've made a bootable lion disk by extracting the InstallESD.dmg from the lion installer app's package contents. - (Contents>SharedSupport>InstallESD.dmg)
When booting from this disk, can you run disk ...
1
vote
4answers
3k views
Snow Leopard Clean Install - Zero Out SSD?
I just upgraded from a 2010 13" MBP to a 2011 15" MBP.
When I boot off the Snow Leopard DVD and go into Disk Utility to erase the drive, should I do a simple erase or should I also zero out the ...
1
vote
0answers
636 views
Migration Assistant fails to recognize a Time Machine disk (itself migrated using Disk Utility)
So I outgrow my Time Machine disk. I listen to the advice (repeated in multiple places) that one can simply use Disk Utility's Restore tab, select the old time machine disk as source and the new one ...
4
votes
2answers
11k views
How do I change a disk partition map scheme from MBR to GUID Partitions Table?
I just finished the huge download of Mac OS X Lion, started the installer, and now I have a problem. The installer says that I must have the GUID-Partitions Table Scheme.
The problem is that when I ...
3
votes
2answers
356 views
Identify connected external disks programmatically
I want to write a shell script that ejects all currently-connected external drives (either USB or Firewire drives). I can use the disktuil eject <disk-path> to eject a specified drive. But I ...
1
vote
1answer
165 views
Expanding OSX partition and deleting Windows paritition
I have created a Windows partition with Bootcamp. Now I would like to get rid of this partition and attach the available space back to the primary Mac OS partition.
I have found various tutorials ...
1
vote
2answers
556 views
Password protect folder without disk images?
Is this possible?
I know you can protect a .dmg file, but is there a more convenient solution, by using a third party application?
2
votes
3answers
3k views
How can I tell if my iMac's hard drive is dying?
A couple of days ago, my three-year-old iMac locked up. When I rebooted it, it only displayed a folder icon with a flashing question mark. After a couple more reboot attempts, it booted. I ran Disk ...
5
votes
1answer
295 views
How do I clone a hard disk excluding some directories?
In preparation for Lion, I want to make a bootable clone of my system to an external harddisk. I use TimeMachine, but I want to be sure I have a running backup.
Of course, there is much stuff on my ...
3
votes
3answers
351 views
Copying Time Machine backup, destination takes more than original size, are hardlinks being expanded?
I'm copying the backup folder of Time Machine, but it's taking too long, the backup is 90GB and the copy already reports 160GB and there's 60% to go yet, so I suspect it's copying hardlinks as ...
2
votes
2answers
2k views
Unhide Partitions via Terminal
Is there any way to unhide partitions that have been hidden by a third party partitioning tool on a Mac using nothing more than Terminal via a Mac OS X Boot CD or USB stick?
Edit
These partitions ...
0
votes
1answer
523 views
Disk utility hanging
I'm trying to reformat the hard drive on an iMac G5 prior to selling it. I've booted the Mac from the installation DVD that came with it, opened Disk Utility, and told it to erase the drive using both ...
1
vote
1answer
296 views
dd to ISO from disc drive makes unmountable / unburnable image?
I'm trying to dd from a disc in my DVD drive on my MacBook to an ISO, but the image always ends up as unmountable and unburnable. The disc is unmounted when I start the process.
I've used dd many ...
