Apple's built-in disk management utility for the mac. Erases, formats, and restores volumes and drives.
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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
522 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
538 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 ...
3
votes
1answer
2k views
Disk Utility says: “Error: This disk doesn't contain an EFI system partition.”
After a clean install of Lion, followed by partitioning which again was followed by a installation of Ubuntu, I noticed some error messages of Disk Utitity.
When verifying the volume I get told that ...
0
votes
1answer
720 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 ...
2
votes
3answers
994 views
Disk utility can't add partitions
I have two partitions - one with Mac OS, and another with Windows 7 (created by Bootcamp). Now, I want to create two more partitions for Linux - LINUX and LINUXSWAP. I open Disk Utility and specify ...
9
votes
3answers
19k views
How to resolve error: “Couldn't modify partition map because file system verification failed”?
I upgraded to Lion and decided I no longer want 100 GB of my drive devoted to Boot Camp, I never boot into Windows, I just use it as a VM anyways. So I deleted the boot camp partition using 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 ...
2
votes
1answer
356 views
How do I move Mac and Windows partitions to single Hard Drive?
I have this scenario:
600 GB Hard Drive, using Master Boot Record
300 GB Windows 7 x64 Parition, NTFS
300 GB free Space
1 TB Hard Drive, Guid Parition Table
730 GB Data Partition, exFat
Two More ...
0
votes
2answers
164 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 ...
3
votes
2answers
549 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.
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
2answers
2k views
Changing a Volume's “Device / Media Name”
I know a Mac volume can be renamed... obviously.
But if you look at the output of diskutil you will see that a volume also has a "device name" that corresponds to the name it was given when it was ...
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 ...
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 ...
2
votes
2answers
793 views
Is it safe to enable the hidden disk image formats and debug menu in Disk Utility, and what are its purposes?
I'm primarily interested to know whether installation of Lion included the Recovery System.
I understand you can enable extra formats and debugging in Disk Utility, using the following commands:
...
2
votes
4answers
4k views
Unable to increase Macintosh HD partition size with data in a subsequent partition
I can't make my main Macintosh HD partition bigger. It's limited by the FAT partition in the middle, which seems to be frozen, I can't move it down to make space for my main partition.
To get some ...
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
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 ...
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?
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 ...
2
votes
1answer
462 views
Repairing Time Machine volume taking forever
Over 18 hours and counting, currently in the "Checking multi-linked directories" phase, but it's been there all night long.
I see disk I/O, not a lot, but some. I assume its from the TM drive as the ...
1
vote
0answers
634 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 ...
3
votes
4answers
22k views
How can I fix an Install Failed error while installing Lion?
I downloaded the new OS X Lion from the App store. I am running the latest Snow Leopard on my 2010 15" Macbook Pro. During the download, it somehow stopped while I was away from the keyboard. When I ...
5
votes
4answers
19k views
How can I resize a partition with Disk Utility?
I have 2 partitions, I reduced the size of one and want to expand the other to fill the now available space.
How do I expand the Lion Partition into the empty grey space beneath Macintosh HD ...
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
354 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 ...
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 ...
1
vote
2answers
541 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 ...
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 ...
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
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 ...
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 ...
0
votes
4answers
735 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 ...
2
votes
2answers
514 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' ...
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 ...
0
votes
3answers
605 views
Time Machine sparsebundle corrupted on disconnect
I've been using Time Machine over wifi and have had a recurring problem with corrupted sparsebundles. The scenario is a relatively new Airport Extreme, a MacBook with Leopard, and a partitioned ...
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
518 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
295 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 ...
2
votes
1answer
143 views
Restoring User from Compressed Disk Image
Is it possible to restore a user's account and home folder from a compressed disk image of the Macintosh HD? The image was created using Disk Utility.
0
votes
1answer
507 views
can't partition hard drive
I tried to make a partition on my macbook for windows. I was unable to do so, because, apparently, the hard-drive has been damaged. Since I do not have osx installation cd, I tried to recover using 1) ...
0
votes
3answers
682 views
Can't format an external HDD :Error: -9944: File system formatter failed
I have MacOs 10.6.6 and a Western Digital external 2.5'' HDD USB 3.0 pre-formatted to NTFS. I try to format the drive do HSF+ with DiskUtility program, but it says:
Error: -9944: File system formatter ...
1
vote
2answers
1k views
Bootcamp and Windows 7 - Mounting the .iso onto a blank DVD-R
So im trying to install Windows 7 Ultimate via Bootcamp on my Macbook Pro 13"....Managed to partition the HDD but for some reason whenever I click install, the Macbook restarts and I'm met with a ...
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:
...
2
votes
1answer
516 views
HFS on Snow Leopard read only
Snow Leopard seems to have dropped support for the HFS (not HFS+) filesystem in Disk Utility. I have an HFS disk image that I created on a Leopard system. In Snow Leopard, this disk image is read ...
0
votes
2answers
1k views
Can I repair my system disk (10.6) by booting off a 10.5 install CD?
I'm running Snow Leopard (10.6) and OnyX told me I need to boot from my install CD and use Disk Utility to repair my drive. (It wasn't any more specific as to what the actual problem was.) I can't ...
