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

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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

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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1k 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 ...
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1answer
57 views

MacBook 5,1 Upgrade, Leapfrog to Yosemite and MBA Backup

My 2014 MacBook Air was recently stolen, but I have a full backup available via Time Machine saved to an Airport Extreme base station. For now I'm using an old MacBook 5,1 with an Intel Core 2 Duo ...
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169 views

SSD formating trouble and mysterious disks

Two days ago suddenly Apple services started to fail on my Mavericks machine. I couldn't shut down (logind - or something like that - crashed but could not be force-quit). I shut down twice from ...
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33 views

disk become empty after delete a large file

I have a 2T mobile disk with the format of NTFS. I store 1T files on it, including a large file with the size of 260G. After I delete the large file, all the file was gone. I remount the disk again ...
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0answers
119 views

I get this error when running sudo dd if=/dev/zero of=/dev/rdisk# bs=64k in Terminal

I'm following the steps explained in this answer: sudo dd if=/dev/zero of=/dev/rdisk# bs=64k but get an error dd: /dev/rdisk2: Input/output error 1+0 records in 0+0 records out 0 bytes transferred ...
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0answers
264 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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Initialize 6 TB internal hard drive

I've found it both economical and flexible to use a docking station with internal hard drives (the ones that look "naked", i.e., have no plastic casing) for backups. I use this docking station to ...
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28 views

Windows formatted disks owned by $USER, while Mac formatted disks owned by “root”, right?

I noticed that some disks were owned by $USER and some by root: $ ls -l /Volumes total 88 drwxrwxrwx@ 1 jdoe staff 8192 Jul 14 10:22 USBdrive drwxrwxrwx 0 root wheel 0 Jul 14 15:54 ...
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Drive format for Sony Blu-ray

I formatted my drive from my Mac in FAT32. I'm using the drive on a Sony Blu-ray player (BDP-S5500. When I copied my files (movies) to the drive from my Mac, ._ was placed in front of each title and I ...
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41 views

Principal HDD doesn't appear in the list of disks to format

I'm using the recovery tools (from internet), but I can't format the internal 500GB HDD. Entering diskutil list in Terminal I get the following output: -bash-3.2# diskutil list /dev/disk0 #: ...
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0answers
118 views

USB key/disk not identified as a storage device

I have a 64GB USB key that I suddenly can do nothing with...I've tried both Mac and Windows diagnostics, as described below. At this stage I don't mind losing its data (99% of which was recently ...
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0answers
28 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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0answers
98 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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0answers
58 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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2k views

The disk you inserted was not readable by this computer

I am getting a system message from Mac OS x 10.8.2 every time I power on my ICY DOCK RAID enclosure. I have followed the procedure in the manual to the letter. Installed two new 2TB HDDs > Changed ...