Apple's built-in disk management utility for the mac. Erases, formats, and restores volumes and drives.
1
vote
0answers
27 views
Why does my 3TB Seagate HD keep formatting as a Logical Volume Group
This is really annoying. I have a brand new Seagate 3TB 7200 RPM hard drive that I am trying to format/partition in Disk Utility. Every time I change any settings or erase the drive, it changes it to ...
5
votes
2answers
2k views
Creating boot disk for Windows 7 on MacBook Pro
EDIT: I gave in and burned the DVD from a windows PC and I was able to install Windows on my MacBook Pro with Bootcamp. Sorry, that I don't have a satisfying solution.
My goal is to install Windows 7 ...
3
votes
2answers
202 views
installation stuck in a loop due to damaged HD
Right off the bat I'll admit it was stupid to jump into trying to install a new version of OS X to the only partition without having taken adequate precautions (no backups or recovery disks), but ...
1
vote
1answer
317 views
diskutil coreStorage in Lion fails to create a concatenated LVG, error -69886
I would like to create a logical volume group (LVG) with two physical disks.
Issue
The command:
diskutil coreStorage create LVGNAME /dev/disk1 /dev/disk2
returns:
Started CoreStorage ...
1
vote
1answer
200 views
Resize Boot Camp partition
I installed Windows 8 on my MacBook Pro using Boot Camp. Now I've figured out I should have made the Windows 8 partition bigger. Is this safe to attempt using Disk Utility? If not, how do I go about ...
0
votes
1answer
16 views
Any need to verify disks after hard reboot?
About every few days I need to reboot my 2012 MacBook Pro Retina.
I noticed these messages in the logs regarding "Journal is read-only and journal is dirty. Can not mount volume".
Any need to ...
0
votes
1answer
165 views
Bootcamp assistant won't let me increase the Windows partition
I'm trying to install Windows 7 on my Mac. The Bootcamp Assistant won't let me increase the Windows partiton's size above ~45 GB. I've got 200 GB free out of 500 GB on my SSD.
I run Disk Repair, but ...
1
vote
1answer
27 views
Does mounting a large disk image require a certain amount of free space on the internal drive?
I've got a bunch of Mac disk images (.dmg files) that are 100 GB or larger. I'm currently on an iMac with a few hundred gigabytes of free space, but I'm going to be moving to a Mac laptop with 128 GB ...
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. ...
1
vote
0answers
41 views
MacZfs with encryption on os-x
I have followed these steps for setting up zfs (maczfs 74.3.0, OSX 10.8.3) with encryption. Everything works fine, till I restart the computer.
After the restart, diskutil informs me that the file ...
0
votes
0answers
12 views
How to verify when disk drive detection is done (diskutil will list all drives) during boot process?
In a system where SATA disks are connected to a third party (Highpoint) controller, the wish is to create a bash shell script that will run every system boot.
The shell script will test whether each ...
1
vote
1answer
39 views
CoreStorage: what does LVG status 'offline' and PV status 'checking' mean and how can it be fixed?
I converted a partition to a CoreStorage volume using this command:
sudo diskutil cs convert disk0s2 -passphrase test123
Now when I run `diskutil cs list' the output shows that I still only have a ...
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
3answers
70 views
Understanding how safe boot fixed a boot problem
Background
My friend asked me to look at her early 2011 Mac Mini with OS X 10.8.3. She said that:
she installed software updates
she couldn't remember which updates were installed
when the Mac ...
-1
votes
3answers
108 views
How to auto-run disk repair on OS X after each system crash?
How to auto-run disk repair on OS X 10.8+ after each system crash?
Note: I am not looking for a manual solution.
2
votes
1answer
58 views
USB drive stuck on read only
So my usb drive is stuck on read only and I have tried many different options which I have gotten from different websites.
I have tried to restore/erase in disk utility but the options are greyed ...
0
votes
0answers
23 views
Detecting a drive (dead or alive) loaded in optical bay
I loaded a SSD into the optical bay of my 2011 MBP today, and initially it was picked up just fine - I used disk utility to format it to extended journalled, and set about moving files onto it with ...
0
votes
1answer
564 views
hdiutil convert/rsize resource temporarily unavailable
When trying to convert or resize a dmg image I get the error:
hdiutil: convert failed Resource Temporarily Unavailable error
or
hdiutil: resize: failed. Resource temporarily unavailable (35).
...
1
vote
0answers
71 views
MacBook Pro Mid-2009 13 inch does not recognize replaced hard drive
As the title states, I recently got a used Hard Drive from another MacBook Pro and installed it into my MacBook. The problem, is the laptop will not recognize it at all. The old hard drive just goes ...
0
votes
1answer
47 views
Carbon copy cloner to image OS X lion and restore from disk image
Is it possible to create an image of my 64gb 2012 Macbook Air using Carbon Copy Cloner so that I can recover from that image (if my Mac does not boot) when I am not connected to the internet? I can ...
2
votes
1answer
383 views
Disk Utility: Incorrect number of file hard links
I'm running Mountain Lion on my Mid 2009 MBP. Recently(for last few months) it's acting really slow. Simplest actions are taking forever to perform. So I verified disk using the Disk Utility and it ...
0
votes
0answers
24 views
When creating a RAID 1 mirror set, do you need to have both disks available or can one be added later?
I'm planning my transition to Mac OS and I have a pair of mirrored drives I would like to move to my future computer. Since they are currently formatted as NTFS they will need to be reformatted during ...
0
votes
1answer
35 views
Unable to eject or erase USB drives
I'm unable to eject USB drives. When I try, I get this error:
The disk "Untitled" wasn't ejected because one or more programs may
be using it.
To eject the disk immediately, click the Force ...
0
votes
1answer
75 views
Move of time machine backup: unable to “restore”
I want to use a new hard drive for time machine. I try to restore the old backup into the new disk using disk utility. It fails with the following error :
source volume is read-write and cannot be ...
3
votes
3answers
750 views
Secure erase drive in Single User Mode
My 2007 Macbook Pro has suffered from a failure of its GPU and will now only boot in Single User mode.
I want to sell it on eBay for spares, but obviously I don't want a hard drive with live data ...
0
votes
0answers
31 views
Encrypted/Journaled Seagate won't accept Password
I have a 2011 MacBook Pro Intel running Mountain Lion. I have a 2tb Seagate External Drive with 3 partitions: all three were set up the same way with different passwords as a person who used to live ...
0
votes
1answer
70 views
Can a file be copied to one hard drive in a RAID 1 mirror set (software RAID), and later have the 2 drives sync up?
I think I read that we can set up a RAID 1 mirror set (software RAID) using OS X Mountain Lion using Disk Utilities, and later plug in one drive and copy a file to that drive, and later on, plug both ...
0
votes
0answers
191 views
External Harddrive is showing in System Information but not Disk Utility
My harddrive crashed last night and since then I have not been able to access it on my Macbook Pro. I've restarted both my computer and hardrive multiple times and I've experienced the same result. It ...
1
vote
1answer
66 views
Image files made with Disk Utility creates parent folder
I'm using OS X 10.5.8., updated from 10.5.2. which I installed from the two installation DVDs that came with my MB404 MacBook.
I recently found my original 10.5.2. installation DVDs, which I thought ...
0
votes
0answers
64 views
Run Disk Utility on Snow Leopard with lost system disk
I have some errors on the hard drive of my mid-2006 iMac that is running OS X 10.6.8. I need to boot off the system disk to run Disk Utility. Unfortunately, after looking throughout my house, I could ...
1
vote
1answer
315 views
Can't do anything with external hard drive, “.Trashes” is probably the boogyman
I bought an external Samsung hard drive today. But I'm not able to do anything with it. Here are the problems I'm having:
I can't put anything on the hard drive. Finder gets stuck at 'preparing ...
0
votes
1answer
81 views
Is it safe to reformat drive during Recovery Mode install?
I've inherited an almost brand new 13" Macbook Pro Retina. I'd like wipe the hard drive clean and start with a fresh install of Mountain Lion. I've done this a million times before... but never while ...
1
vote
2answers
659 views
Recurring “error code -50/invalid argument” resolved by reboot, better solution sought
I'm using an old iBook G4 (PowerPC) running Tiger to serve iTunes to the house. For the past week or so, the mac boots fine, and then sometime during the day starts generating
An unexpected error ...
0
votes
1answer
65 views
Can I “restore” an iso image to my hdd to be bootable?
I removed my superdrive a while back but now I want to install a linux partition on my macbook. I installed rEFInd as my boot manager but now I need to boot into the arch linux iso. Normally I would ...
0
votes
1answer
57 views
How to mount Linux_RAID on osx
I have a NAS that broke and it used linu_RAID as its format type. How do I mount this in OSX?
Similar to this one...
...
0
votes
2answers
130 views
For bad and/or marginal blocks on hard disks, can anything be more effective than a single pass of zeros?
There's a good discussion in Apple Support Communities –
Disk Utility: for bad blocks on hard disks, are seven overwrites any more effective than a single pass of zeros? (2011-04-21)
A highlight:
...
0
votes
1answer
44 views
Hard Drive Preview / Disk Utility Used Space Discrepancy? [duplicate]
So I recently cleared a lot of space off of my hard drive as a sort of "spring cleaning," and I got it down to less than 40GB, but my computer doesn't seem to agree with itself on that. If I look at ...
1
vote
1answer
140 views
Replace a failed disk in a Disk Utility RAID 1
I have LaCie 2big thunderbolt 2-disk device configured as a RAID1 from Disk Utility. One of the drives appears as "failed", so I unmounted the raid, replaced the drive and plugged it all back in.
Now ...
1
vote
2answers
623 views
Disk Utility Disk Verification
I ran the "Verify Disk" tool in disk utility on my main disk called Macintosh HD, and it came up with this log:
Verifying volume “Macintosh HD”
Checking storage systemChecking volume.
disk0s2: Scan ...
0
votes
1answer
218 views
Fix slow startup after utility disk repair on a SSD
I have a 250Gb Samsung SSD 840 series with Trim support enabled installed on a mid-2009 13" Macbook pro running Snow Leopard (10.6.8, 2.26GHz, 8Gb of RAM) and I experience extremely slow startup after ...
10
votes
3answers
20k 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 ...
0
votes
2answers
427 views
How to repair external hard drive that fails diskutil with 'Disk Full Error'
If I run fsck_hfs -y -d /dev/rdisk2s10 it putters along, rebuilds the catalog B-tree then fails when writing the new catalog to disk.
bash-3.2# fsck_hfs -d -y /dev/rdisk2s10
** /dev/rdisk2s10
Using ...
1
vote
2answers
1k views
Restore disk in single user mode
I wounder if it is possible to restore one partition to another in command line? The similar operation can be performed with Disk Utility, but unfortunately I cannot boot in graphics mode (even safe ...
3
votes
1answer
101 views
Erasing partition doesn't give me free diskspace
I'm using a Macbook Air and until today I had two partitions on it (not counting the restore partition). I had my OSX partition and an Ubuntu partition.
As I don't use Ubuntu anymore, I decided to ...
4
votes
1answer
603 views
Can I partition an iPod (nano, classic, shuffle) for use as a flash drive?
I have made an iPod nano appear as a flash drive by going to iTunes and checking "Enable disk use." However, I am short of a large enough USB key to hold a bootable Windows 8 installer for use by Boot ...
5
votes
4answers
20k 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 ...
3
votes
2answers
517 views
Mac Hard Drive Testing Tools and SMART Analysis
How good is SMART (Self Monitoring Analysis and Reporting Technology) for really finding and predicting drive problems for regular hard drives and now, for SSDs.
From what I understand, different ...
0
votes
4answers
530 views
What to do when my Time Machine drive is getting disk errors?
My Time Machine drive is getting disk errors. I used Disk Utility and ran "Repair Disk" on my Time Machine partition (NOT the drive) and I got the error "Incorrect number of directory hard links" ...
0
votes
1answer
430 views
Unable to adjust partition of USB drive with Mountain Lion Disk Utility
I have a 500 GB USB drive, which I once partitioned into two parts: one encrypted—Mac OS Extended (Journaled, Encrypted), and the other not—Mac OS Extended (Journaled).
Now I want to change the ...
1
vote
0answers
595 views
How do I force a partition and format on a USB key in OS X Mountain Lion Disk Utility or from CLI diskutil?
I have a brand new Memorex TravelDrive 64GB USB disk which is being troublesome.
It's formatted FAT16 on MBR, which is not so nice, and I'd like to put it on HFS+.
I've tried to do this through ...
