Tagged Questions

1
vote
0answers
14 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 ...
0
votes
1answer
42 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
312 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 ...
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 ...
0
votes
1answer
420 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 ...
0
votes
0answers
47 views

How to order partitions in diskutil?

I have the same problem as this guy How to resize Macintosh HD? But : In the 2nd answer @paulgrav uses diskutil Now I have this second issue : Does someone know how to reorder the partitions in ...
1
vote
1answer
282 views

How to remove the use of master boot record from an external hard drive?

I have a 1TB external hard drive and I want to slice it into different partitions. When I try to do so, I get this error: can not modify external drive because it uses master boot record Is ...
2
votes
0answers
86 views

How do I format an encrypted Integral Secure Key?

I just bought an Integral Secure Key from the Apple store but am fed up with having to use its own software just to transfer files to it as it does not appear as a normal USB drive in Finder. How can ...
0
votes
4answers
524 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" ...
1
vote
1answer
953 views

Can't I resize my existing partition?

I tried installing Win 7 into my Mac so I can dual boot and use Win 7 but then again changed my mind about it but i have already partitioned a separate drive for windows. I deleted it and tried ...
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
576 views

Boot Camp / Partitioning Weirdness

I have a MacBook Pro, running 10.8.2. I'd like to give Windows 8 a go, using Boot Camp. Now, I've probably done a b Boot Camp install of Windows close to 10 times, on multiple Macs, but I'm stumped ...
0
votes
0answers
113 views

Resizing Disk Partition works for some but not for others

I have a external hard drive that is partitioned using Disk utility into: 1) one partition per machine for Time Machine backup 2) for work disk 3) for file archive 4) for OS back ups While the ...
1
vote
1answer
3k views

Create new partition in unallocated space with diskutil

I have deleted the first partition on my external HD such that it now has 100GB of free space at the beginning of the partition. I'd like to reclaim that space, but Disk Utility doesn't let me create ...
3
votes
1answer
444 views

Presence of a Linux partition causes FileVault2 setup to fail

I'm currently dual booting Mountain Lion and Ubuntu 12.04 on a rMBP. Everything works fine, but enabling FileVault fails with the error message: "Some information was unavailable during an internal ...
2
votes
1answer
2k views

Can't ever remove partition?

Running Mountain Lion. I added a partition with Disk Utility and then had second thoughts about it. I'd like to remove the partition i created, MacSSD2 and hand over its space back to MacSSD. As you ...
0
votes
0answers
228 views

What is the strange 4.2GB partition that happened from partitioning a Mac hard drive the second time?

I got a new Macbook Pro Retina with a 256GB SSD. The first thing I did was to try to create 2 more partitions, each one 60GB, so that one is for Windows 7, and one is for any OS X Mountain Lion ...
1
vote
1answer
617 views

How to clean up partitions after OS X is moved from HD to SSD

Yesterday an Apple Certified Macintosh Technician installed an SSD into my iMac medio 2011. The iMac was born with an 1TB HDD but now a Crucial M4 SSD is also installed inside the mac. I've moved my ...
1
vote
1answer
1k views

How to move boot and recovery partition from HDD to SSD

Today an Apple Certified Macintosh Technician has installed an SSD into my iMac medio 2011. The iMac was born with an 1TB HDD but now a Crucial M4 SSD is also installed inside the mac. I've moved my ...
0
votes
1answer
1k views

Partition MacBook Pro with Mac OS X Lion using Disk Utility

I've just bought a new MacBook Pro with Mac OS X Lion. The problem started when I tried to divide the hard disk into more than 3 partitions, so I erased the existing partition and tried to divide the ...
1
vote
0answers
796 views

Disk Utility Error Message - Missing EFI + MediaKit

Previously setup was with 2 partitions, one for normal use while the other had the Lion Install ESD on it, used when I installed some time ago. The other day my machine suddenly shutdown and when I ...
2
votes
3answers
1k views

How do I merge System partition with another HFS+ partition without data loss?

My hard drive is split in three visible partitions: System, Data and Backup. I'd like to merge System (OS X Lion) and Data into one partition without data loss. Disk Utility won't let me resize the ...
1
vote
6answers
4k views

Partitioning secondary internal hard drive failure

Looks like my 2nd HDD became a brick. I tried to partition it via Disk Utilities/booted from recovery partition/diskutil to no luck! I got vague/strange errors such as: unable to unmount, or: ...
0
votes
2answers
2k views

Unable to create a partition to install Mac OS X

When I try to install Mac OS X there is no partition for me to choose. I tried to create a partition and got the error, "Partition failed with the error: Couldn't unmount disc." Anyone have a clue? ...
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 ...
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 ...
2
votes
3answers
1k 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 ...
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 ...
2
votes
1answer
368 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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
4
votes
2answers
12k 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 ...
1
vote
1answer
166 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
647 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 ...
2
votes
2answers
528 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' ...
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
522 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) ...
6
votes
2answers
5k 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: ...
3
votes
3answers
1k views

“Not enough space” on partitioning?

I have a 320GB harddrive with 95GB free. I boot to a 10.5 disk, open disk utility, and add a 40GB partition. Halfway through the progress bar, though, it tells me that there's not enough space. I'm ...