refers to formatting, or erasing a disk, deleting all data on the disk

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71 views

Failed to make bootable USB drive and now I can't even format it

I want to do a fresh install of Yosemite and I got a brand new 8GB flash drive and I followed this tutorial. I formatted the USB drive and was copying the Yosemite installer, however I got the ...
2
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3answers
11k views

Disk Utility won't allow me to delete and resize partitions

I'm running OS X 10.9, and I had a linux partition when I updated from 10.8. Since I updated I can't boot on linux, which is no big deal for me. However, I would like to delete the partition that is ...
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2answers
2k views

Error: “couldn't unmount disk” keeps coming up when formatting external HD to eXFat

I have a WD "my Passport" external HD that is currently formatted for a PC and I would like to format it to eXFAT. Every time I hit "erase" in disk util it just comes up with the error "couldn't ...
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2answers
33k views

How to format a disk to NTFS using Mac OS X

I am looking for a simple GUI based way to format drives to NTFS (Windows) on Mac OS X Snow Leopard.
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0answers
14 views

Multiple images in Pages document

In a document created by Mac Pages, I need to insert three pdf files as different chapters. As it is not possible to insert them by a single command, I had inserted every page of these documents like ...
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1answer
40 views

How Do I Recover Formatted Mac hfs+ Partition?

I was installing Win8 on a Mac where I got the error that I can because of GPT disk I dont know what MAC I have but the Mainboard is number is Apple Mac 942859f58194171B. I tried formatting the ...
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3answers
40 views

2010 Mac Mini Downgrade

I have a 2010 Mac Mini with no DVD drive and a 5,400 RPM hard drive. Of late, it's begun to get quite sluggish, and I'm fairly sure it's the slow HDD that's to blame. I took a look at the means of ...
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2answers
4k views

How to partition an SSD that fails with error 69888 - couldn't unmount disk?

I erased the SSD drive in my MacBook and was reinstalling Lion when it failed about 75% through the install. Now in Disk Utility, sometimes I see the SSD drive and sometimes I boot and it's not there ...
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2answers
45 views

How to play AVI files on MacBook Pro

Using GoPro software, I had imported videos to PC. However when I bought a new macbook pro, I transferred all files onto an external Hard Drive. They are currently in .avi format. I am struggling to ...
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2answers
51 views

Real performance boost with multiple partitions

I have a 1TB Hard drive with multiple partitions where I had previously installed Snow Leopard. Now I'm making a clean install of Mavericks and I have a couple of questions: 1) What are the real ...
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4answers
885 views

I can't write to my flash drive, and it is already in the MS-DOS (FAT) Format. Why?

This is my first question on this website. I am using a Mac Air, and I have a flash drive in which I can read from. I am able to copy files from this onto my Desktop, or anywhere on my computer for ...
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2answers
417 views

Unable to format pendrive, diskutil error

When I insert my USB Pendrive in my iMac i see this message: I tried to format it both with DiskUtility and with diskutil command in terminal but I get this error: iMac:~ User$ diskutil eraseVolume ...
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1answer
4k 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 ...
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3answers
2k views

How to erase and reformat SD card to ext3 on my macbook to prepare it for my raspberry pi

I'm trying to reformat my 32G SD card to prepare it for my raspberry pi. My GUI program on my mac does not allow me to format it to ext3 which is what i'm told to reformat it to for my raspberry pi. ...
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3answers
7k 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 ...
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0answers
56 views

Used DiskMaker to create bootable USB, got error 10600, USB won't mount

I tried creating a bootable USB for Mavericks. Downloaded and used DiskMaker X. Got an error, -10660, and the app closed. Now my Mac won't mount (or recognize) the USB drive. It doesn't show up in ...
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1answer
354 views

Should I reformat a disk if Disk Utility asks me to?

I have a FAT32 external disc that was suddenly unmounted as I was using it. When I reconnected it and tried to Repair it in Disk Utility, I got the following messages: Verify and Repair volume ...
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1answer
7k views

Stuck in a boot loop after failed update to Mavericks, can't reformat HDD

I recently tried to upgrade a 2008 Mac Pro from Snow Leopard (10.6.8) to Mavericks (10.9.2) using the free upgrade available in the App Store. The upgrade seemed to go without a hitch until the ...
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1answer
60 views

Format SSD and restore TM backup

My SSD stopped mounting by itself on boot. So I booted into Single User mode, ran /sbin/mount/ -uw / and exit and it got mounted and I could boot from the SSD. However, after booting all I see is the ...
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2answers
2k views

View Time Machine backup drive on Windows 7

I use an external hard drive to regularly backup my Mac using Time Machine. However, I wanted to copy the data on this drive to a Windows 7 machine which does not work. It seems, that the PC ...
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0answers
49 views

Partition Table Overwritten by MBR for USB external storage

I was trying to make my SD card writable again on my MBP which I had my 1 TB external storage connected to my Macbook Pro. So I ran the command $ sudo diskutil eraseDisk FAT32 SDNAME-SD MBRFormat ...
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2answers
14k views

How can I let Windows XP read Mac OS Extended (Journaled) drives?

How can I let another PC using Windows XP (Service Pack3) read Mac OS Extended (Journaled) volumes? Windows XP shows nothing.
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0answers
37 views

Clone whole partitioning scheme to smaller disk

I have the following on my secondary disk. As I am not satisfied with it I would like to clone everything to the other one which is smaller unfortunately. /dev/disk2 #: TYPE ...
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3answers
2k views

How to format external drive into ZFS?

I've installed MacZFS, I've read the FAQ and Getting Started section, but I've still troubles to understand how to simply format the external drive into ZFS on OSX. I'm confused with zpools, can ...
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1answer
2k views

External Seagate Hard drive for Mac - Compatibility

I am looking to purchase a Seagate External Hard Drive for my MacBook Air. The products claims it works only with PC (windows), however, I have read multiple places that I can just format the drive ...
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2answers
181 views

how to create a 128MB HFS+ partition using diskutil

I have a ~ 500GB disk in my new Mac, and I would like to create a 128MB HFS+ (Journaled) partition using OS X, but when I tried to do this earlier today the smallest HFS+ partition I could create was ...
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2answers
424 views

Maverick's installation: Can i install Mavericks on a non-case-sensitive partition?

I'm trying to install photoshop on my iMac but it looks like I can't install Mavericks if I have a case-sensitive partition. Is it a known bug? Can I do anything to fix it?
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2answers
1k views

How can I repair a hard drive that Disk Utility and Disk Warrior can't fix?

I have a Mac Pro running Mac OS X Lion, and one of my hard drives has acted weird since attempting to repair permissions. I used Disk Warrior, but it says the HD can't be rebuilt. When I try to format ...
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7answers
8k 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: ...
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2answers
2k views

Which format for external disk for performance?

I'm using OS X Mavericks and just got a new external hard disk. I don't need to share it with a PC (so no need for FAT) but I do want it to have better I/O performance. I'm a bit confused by the ...
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1answer
125 views

Should I format and upgrade to mavericks or upgrade to mavericks and format?

I am planning to upgrade on a Unibody Macbook (2008) to Mavericks. Mountain Lion is already installed and I felt it to be a bit sluggish when I upgraded. I also would like to start anew and clear some ...
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1answer
2k views

Disk Utility stuck around 50% when formatting SSD

I bought a SSD drive for my early MacbookPro 2011, since my old HDD was very slow and with crazy IO activity when idle. I started the Internet Recovery Mode and opened the Disk Utility to format the ...
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1answer
807 views

Difference in disk usage MS DOS vs Extended Journaled

Searches on Google and the Apple forums didn't get me any answers or couldn't clarify this for me, hence this question. I have two following external USB hard drives connected to my iMac: "Lacie1" ...
2
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1answer
185 views

how to write to a windows formatted disk from OSx?

I have 4 external hard disk formatted on windows in NTFS, but they are lying unused since I bought mac, so I am looking forward somehow I should be able to write to those disc without having to format ...
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1answer
27k views

How to securely erase/format an iPhone for resale?

I've read a couple guides that talk about restoring the iPhone to it's base operating system, then syncing three different full playlists of music in order to overwrite any previous personal data that ...
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2answers
212 views

Does it make sense to buy a compatible Mac external disk?

What is the advantage of buying a compatible Mac external disk? Using Tuxera NTFS I can have an external disk for both, the windows partition (or any windows machine) as well as for the Mac one. Does ...
0
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2answers
281 views

Delete and merge Partition

My MacBook's HDD has 2 partitions. One has OS X 10.8 installed, the other one 10.9. I'd like to delete the first partition and merge the free space afterwards to the 2nd partition. What's the easiest ...
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1answer
2k views

Update OS X recovery USB stick with Mavericks

I've got a Snow Leopard 8GB USB stick that I got from my MacBook Air. Now that Mavericks is available, I'd like to update that USB stick with Mavericks. I can't seem to be able to format that disk: ...
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1answer
551 views

Is it bad to format your ssd many times?

In the past two years, I have formatted my SSD many times and I started to wonder, is it bad? Does it harm your SSD every time you format?
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1answer
3k views

Error copying large file to usb 16GB Thumbdrive

Trying to copy a file (Win7_IE8.vhd) to a USB drive. The file is 9.07GB in size according to my Mac file info. The USB drive is 16GB. I bought it new 10 minutes ago. This is its first use. I get: ...
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1answer
202 views

Seagate 4TB, 3,5" / SATA III (ST4000DM000) and SK-3500 Super-S Combo

I bought a 4TB 3.5", SATA III Seagate Desktop HD and put it into a SK-3500 Super-S Combo. My iMac (late 2009) did, however, not detect the HD when I connect it. Since I cannot see it, I am unable to ...
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3answers
13k views

What are the differences between journaling HFS+ and non-journaling HFS+?

I'm about to format an external hard disk drive (HDD). What are the key differences between journaling HFS+ and non-journaling HFS+? Apart from the fact that one has journaling and the other does ...
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5answers
21k views

Lost password on Mac OS Extended (Journaled, Encrypted) Drive. Want to reformat it

I am using a Seagate Free Agent Desk external drive as my Time Machine on a modern iMac running Lion. I made the mistake of encrypting the drive, and I do not remember the password. I dont mind losing ...
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3answers
4k views

Can I install OS X lion on a disk that is OS X Extended Journaled encrypted?

Just wondering if I can, using Disk Utility, format the hard drive such that it is OS X Extended (HFS+) Journaled encrypted. Will Lion be able to install on that disk?
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1answer
710 views

Grab list of Stats, Application Data, and Serials off OSX 10.6 to prepare for reformat and fresh install?

I need to reformat my 2007 OSX as it is now returning kernal errors. I want to install everything fresh but I have a lot of software and don't want to sit here making a list of everything installed as ...
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0answers
224 views

Waiting for disks to reappear on SSD new install

I just installed a new Samsung SSD 840 PRO in an Early 2011 Macbook Pro, trying to format drive and it is stuck on: "Waiting for disks to reappear" What should I do now?
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2answers
621 views

Mac OS-X disk file format

I need to format an external hard disk on a MacBook Pro (USB2 connection). In the disk utility, Erase tab, I can only choose between these formats: MacOS Extended (Journaled) MacOS Extended ...
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4answers
7k views

HFS+ case-sensitive or case-insensitive — which type to use for the primary drive partition?

What reasons are there for choosing the case-insensitive version of HFS+ when formatting the primary drive partition? Would case-sensitive not always be the best choice?
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1answer
634 views

Create partition on MacBook Air that isn't deleted during restore

I have a 20gb file that I need to back up and I don't have an external drive or access to any high-capacity cloud storage but I need to format/reinstall OSX Lion on my MacBook Air. On Windows and ...
5
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8answers
15k views

Checking for bad blocks without formatting

My Mac tends to pause every now then when preforming simple tasks such as right clicking, opening menus and typing (It actually just froze when I started typing this question.). I've read in a few ...