Creating a new disk formatting scheme or altering an existing scheme

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5 views

Recovering a confused partition table?

So I've got a MacBook Pro which I use for work (and thus every file is precious information) and my BootCamp partition was getting a bit small, so I resized it with GParted, but not before resizing ...
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0answers
21 views

My partition is using negative space. Should I worry?

As you can see, according to Disk Utility, I'm using negative space in /dev/disk0s7. This is obviously incorrect, however, I am slightly worried as to what this may mean for the partition's effects ...
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0answers
18 views

Mac OSX 10.6.8 Failed Boot Camp Partition Cleanup

I'm working with a late 2007 Macbook (A1181) running OSX 10.6.8. I do not currently have a working OSX disk I could recover off of This afternoon I was using Boot Camp to create a large windows ...
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2answers
29 views

Create hybrid MBR/GPT just like Bootcamp Assistant does

Currently I have two partitions with data on them I would like to keep (marked with a *): /dev/disk0 (internal, physical): #: TYPE NAME SIZE ...
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1answer
66 views

Partition sharing - messed up with GPT/MBR

First of all, sorry for any English mistakes or print screen in French... I'm Belgian. I've had a lot of problems with an iMac 2009 27", mostly with Mac OS. Strangely, Windows (10) works with little ...
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12 views

Boot Camp - frozen during hard drive partitioning - iMac 27” w/ 3TB Fusion Drive

(iMac 27” late 2012, 3.4GHz, 3TB Fusion Drive, running El Capitan 10.11.4.) I've gone through the Boot Camp Assistant steps with all of the recommended options (created a bootable Windows flash ...
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0answers
13 views

Isolate Partitions

I'm trying to partition my HD into a 'anything is ok' development/beta type drive and a no bs allowed drive. Not a fan of these drives having access to each others applications and file systems. ...
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1answer
3k views

How to use “diskutil corestorage revert lvuuid” on Yosemite if disk says it is not reversible?

I would like to make a partition for Linux. Here's what diskutil coreStorage list gets me (identifiers omitted): CoreStorage logical volume groups (1 found) | +-- Logical Volume Group ...
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1answer
485 views

Install rEFInd on another partition

I recently tried to install rEFInd onto my Mac but it could not boot into the Ubuntu disk. To uninstall It I formatted my drive and reinstalled OS X along with my backup. To avoid this issue again I ...
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1answer
67 views

Create El Capitan install partition

I went through a lot of articles on how to create bootable os x install partition but eventually I ended up with a need of making resize of my system partition - unfortunately DiskUtility shows this ...
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1answer
22 views

Deleted Bootcamp partition and it just disappeared. Nothing to merge with OSX partition

I had Windows 10 Bootcamp on my MacBook Pro 15" 2015. I just tried to remove the Bootcamp with Bootcamp assistant by clicking "restore" and it gave me an error saying "The disk cannot be partitioned ...
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2answers
4k views

Resetting MBR on iMac

I installed Ubuntu on my iMac (partially successfully) I had rEFIT installed but it did not recognize the Ubuntu installation. I removed the partition and rEFIT and now when I attempt to install ...
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1answer
221 views

How to change the “Recovery HD” partition to type “Apple_Boot”?

Typing in the terminal diskutil list gives me this... /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme ...
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2answers
242 views

Resizing HFS+ volume after cloning

I cloned a disk containing an HFS+ volume to a larger disk using the command line dd utility. Now I want to grow the HFS+ volume to fill the new disk. There's an EFI partition before the HFS+ volume ...
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3answers
5k views

Restore Recovery HD partition from Yosemite downgrade

I recently got back to Mavericks from Yosemite, everything went fine. As I normally do, I checked my HDD with the Disk Utility and found some trouble, then I boot on recovery mode to fix my HDD. I ...
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2answers
29 views

Merge partitions with Macintosh HD

This is my diskutil list. I wish to merge Misc (disk0s4) with Macintosh HD (disk0s2) leaving only Macintosh HD (disk0s2). Normally I would use this command to merge the two disks: diskutil ...
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3answers
2k views

Can't boot on OS X partition after resizing Windows partition

I initially had three bootable partitions: OS X Recovery for OS X Bootcamp (Windows 8) Now, on Windows, I decided to make my Windows partition smaller, reducing its size using the native Disk ...
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1answer
40 views

How to fix bootcamp boot after removing hybrid MBR

I've updated bootcamp to Windows 10 which should support GPT with protective MBR without any hybrid tricks. I have 6 partitions on disk0 so hybrid MBR is also inconsistent with GPT and it's somewhat ...
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0answers
24 views

Format usb drive into ext4 and swap partitions

I have been trying to create a model of a passive WiFi tracker by following the steps given in the following link: http://edwardkeeble.com/2014/02/passive-wifi-tracking/ One of the steps requires me ...
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1answer
3k views

No bootable device after failed Windows 7 installation via Bootcamp

While trying to install Windows 7 via Bootcamp on my MBP Retina today I really messed up. After getting into the drive selection in the Windows installation utility I deleted the other partitions (3 ...
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0answers
11 views

OS X stopped recognizing my HFS+ Time Machine partition on my USB GPT disk

I have a 2 TB USB drive that's using GPT, but OSX (10.11.4) on my macbook pro (early 2015) stopped recognizing my HFS+ partition after I inserted a partition before it ("TESTPART"), effectively making ...
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0answers
21 views

Partition map check failed because no slices were found for SD Card

When I connected my sd card to macbook, I got the error "The disk you inserted was not readable by this computer". I ran following commands ~ diskutil list /dev/disk2 (internal, physical): #: ...
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1answer
35 views

How to restore OS X drive to factory defaults?

I turned off the Core Storage volume manager on my OS X partition (i.e. diskutil cs revert). Now my Recovery HD displays in Disk Utility and in Startup Manager. I don't like this and would like to ...
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1answer
70 views

Cannot delete or merge old boot camp partition in El Capitan

So i've battled with this for quite some time, look up various topics with various solutions, however i have yet to succeed with merging my partitions into one. I had previously installed windows 10 ...
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3answers
181 views

2012 MacBook Pro OS X El Capitan wont boot into windows 8.1 after a HD partition change

I had windows 8.1 installed with bootcamp and it was running fine but I ran out of space on the partition I originally created. I had read online that I could free up space from OSX by creating a new ...
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1answer
57 views

Reformatting disk with no partition map

I have a 250GB hard drive that I tried to "burn" an ISO to (to make it bootable). Something went terribly wrong.This is what the disk looks like in Disk Utility (unmounted). When I mount it, this ...
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2answers
6k views

Create Windows 10 installer USB without bootcamp

I have recently wiped my hard drive and partitioned my hard drive like this: /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: ...
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2answers
5k views

Repartition hard drive with bootcamp on it

I currently have this setup on my Mac- OS X Mavericks 10.9.3, Windows (bootcamp) and a Recovery HD. My question is can I repartition my hard drive to have another partition, using disk utility (resize ...
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1answer
4k views

Can't boot into Mac OS after Windows install via Bootcamp

I just installed Windows 10 successfully via BootCamp. Now I am neither able to boot into OSX, nor is its partition shown anywhere. Turns out the issue occurs because of a mistake I made during the ...
1
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1answer
26 views

corestorage failure: missing disk, how to recover data?

This morning, my iMac show me the prohibit sign. After hours of struggling, I'm facing this: the Mac does not want to boot up. I have a lot of recent files to recover, but have this issue: root# ...
2
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1answer
1k views

HFS+ invalid number of allocation blocks

Okay so a few days ago I wanted to install Ubuntu GNOME over regular Ubuntu and it gave me the option to automatically overwrite my Ubuntu installation (that I had on a separate partition from my OS X ...
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0answers
15 views

How to run multiple versions of Mac OSX on my MacBook

I recently bought a Macbook 4,1 from early 2008. (as it says in system information) I need to run multiple versions of osx, like on two partitions. I currently have installed os x 10.7 and need to ...
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0answers
34 views

OS X El Capitan renames Windows volume on every boot by appending increasing numbers to the volume name

I have installed Windows on a separate hard drive on my MacBook Pro running OS X El Capitan. OS X is running on an SSD and Windows is on another physical hard drive. I named the other hard drive ...
0
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1answer
25 views

File types in EFI partition

In El Capitan, I mounted the EFI partition using sudo diskutil mount /dev/disk0s1 and instead of finding apps that I can run, I found .scap, .smc, .epm, and .efi files. What are these? The reason I ...
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2answers
2k views

Install windows 10 on bootcamp fails

Im trying to install windows 10 with bootcamp. But what i`m trying it wil not work. I hope some one can help me. When i create a bootable USB via bootcamp this all works wel. than i delete the ...
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2answers
97 views

Failed bootcamp partition, now can't remove it

Tried to set up Windows 10 on my Macbook Pro 15" (Mid 2014). Running El Capitan 10.11.3. Windows refused to install (GPT partition only problem?). I followed steps elsewhere to remove and reformat the ...
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5answers
5k views

How to delete partition disk0s4?

A while ago, I dual booted with ubuntu linux and followed a tutorial on youtube to do so, but later I wanted all of my hard drive to be for osx, so I deleted the ubuntu partition, but now I am left ...
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42 views

Increasing size of boot camp partition without reinstalling windows (free)

I have installed windows 10 on mac book pro (256 gb) size of boot camp partition according to default, now is 32 gb. I would like to increase size of that until 100 gb. I found some different solution ...
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20 views

Index partition on Time Capsule and open on Startup

I recently reinstalled the OS on my MacBook Pro. All of my files are backed up on my Time Capsule. However, as my Mac is now running a zillion times faster without all the files on it, I decided not ...
3
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2answers
7k 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 ...
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1answer
40 views

Boot Camp problem on MacBook Pro (2015)

I installed Windows 10 with Boot Camp Assistant, but when I press the option key on boot, it shows only the Macintosh HD partition. Why is that happening? Is the BOOTCAMP partition not bootable? ...
0
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0answers
13 views

main partition 'not mounted' problem

After crashing, main partition is greyed out and 'not mounted'. Here's the detailed info on this disk: I wanted to install Ubuntu on my Macbook Pro Retina (early 2013), so I could run some specific ...
2
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1answer
68 views

How to format a Seagate HDD to OS X Extended (Journal) with Disk Utility

I have just got a new external hard disk, the Seagate Expansion 2 TB, and I am trying to format it to work on my Mac. I was told that I had to erase the disk and format it to OS X Extended (Journal) ...
2
votes
1answer
1k views

CoreStorageFamily::unlockVEKs() failed to unwrap the vek, status = e00002bc

I have a filevault2 disk with two partition. One is the boot partition, the other contains data, both are encrypted. Today, after installing the latest 10.8 update (10.8.4 I guess), the computer ...
0
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1answer
24 views

How to automat the selection of usb disk based on size

I am trying to automate a process where teachers delete content on memory sticks with different name then put the right content back (same each time) and rename the memory stick to UDISK. I want to ...
2
votes
3answers
142 views

Missing space on Fusion Drive (partition problem)

I know this or similar problems have been discussed, but (to be honest) I can't see the trees for the wood. I tried to create a partition on my fusion drive (1TB Hd + 240 MB SSD). No partition was ...
2
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4answers
7k views

partition map check failed because no slices were found

I own an early 2011 MacBook Pro running Mac OS X Mavericks. Recently, I tried to make 50 GB partition using Disk Utility but the whole process didn't complete, and I had to restart the system as it ...
2
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4answers
6k views

Boot Camp Assistant crashes when partitioning drive (exception: EXC_BAD_ACCESS)

I run Mountain Lion, a fresh install, brand new Macbook Pro. HD: Samsung 840 Pro 512 GB SSD. When trying to go through Boot Camp Assistant / Setup it works fine until it wants to repartition my ...
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3answers
50 views

New SSD can't be initialized

I have an old Macbook Pro for which I bought a new SSD and replaced the HDD with the SSD. Can't go further, see below. I really don't know what to do. I could return the SSD which, finally, might ...
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2answers
1k views

Can't Delete Partition

I created a partition to run Snow Leopard on my computer running El Capitan and no longer need it. I allocated 20GB to that partition. Here's what I've done. I first go into Disk Utility, select my ...