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Time Machine Error Could Not Unmount Disk

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I have 2 external drives (Lacie 200g USB - Western Digital 120g USB) that unmount unexpectedly, sometimes they remount. I go back into disk utility and attemp to erase/repartition the disk to start a new install but it refuses to unmount. Browse other questions tagged osx external-hard-drive time-machine or ask your own question. Go to Disk Utility, select the drive on the left, and then go to the Erase tab. http://openoffice995.com/time-machine/time-machine-error-the-disk-is-not-available.php

This will remove your previous partitions and you will lose the data on the disk. First, shut down the drive and computer. Print some JSON Are assignments in the condition part of conditionals a bad practice? Is there some Mac-Jedi way of going about isolating what might be preventing this drive from ejecting properly?

There Was An Error Preparing The Time Machine Backup Disk Couldn't Unmount Disk

Twitter Facebook LinkedIn YouTube Book a Repair Book a Course 0208 660 9999 - [email protected] Home Repairs Book an appointment Collect & Repair Walk-in repairs Business accounts Price lists Training Courses Enter your admin password if prompted. Your precise instructions worked perfectly.

Why is international first class much more expensive than international economy class? I had been under the impression that it would delete old backups to make space for new ones, but this didn't seems to be happening. share Share on Twitter Share on Facebook Email Link Like + Quote Reply rkbhadhya, Mar 8, 2013 rkbhadhya macrumors newbie Joined: Mar 8, 2013 #9 Could not find Time Capsule Hello Guid Partition Map So, rather than keep wasting time, I just used disk utility to erase the drive and set it up again as the time machine for my Macbook Pro.

El capitan OSx , yosemite osx, mavericks osx, apple computer, apple laptop .Windows, Laptop, Online, Category Science & Technology License Standard YouTube License Show more Show less Loading... Disk Utility Couldn't Unmount Disk External Hard Drive USB sticks work fine.Info:Mac Pro, Mac OS X (10.7.3) View 1 Replies View Related Hardware :: Unable To Reapair External Disk / Unmount Error Jun 22, 2008 I have a Western Reply With Quote 09-15-2014,12:07 PM #2 RadDave View Profile View Forum Posts Member Since Jan 20, 2012 Location North Carolina Posts 3,512 Specs:MBP 13" (2013); 8 GB RAM; SSD 256 GB; http://apple.stackexchange.com/questions/128870/unable-to-mount-time-machine-partition Sign in Share More Report Need to report the video?

Apr 4, 2010 I just bought a Seagate Expansion drive, and it has no power button so when it has been plugged in and not in use for a while it Unable To Write To The Last Block Of The Device How do I respond to the inevitable curiosity and protect my workplace reputation? Note that this will erase all data on the drive. Perhaps it was just a bad connection on a pin in the plug.

Disk Utility Couldn't Unmount Disk External Hard Drive

e.Then set the Format.  Usually, that will be the default:  Mac OS Extended (Journaled).  For your Time Machine partition, there are two considerations: •If any disks/partitions being backed-up are case-sensitive, the

Sign in to add this to Watch Later Add to Loading playlists... There Was An Error Preparing The Time Machine Backup Disk Couldn't Unmount Disk I really can't afford to pay someone $300 when I'm this close! Format Drive For Time Machine MacBook Pro, Mac OS X (10.6.8) Posted on Jul 1, 2012 4:28 AM I have this question too Close Q: Time Machine "could not Unmount Disk" All replies Helpful answers by

Junaid Rupani 841,936 views 6:06 How to ║ Restore Reset a Macbook A1278 to Factory Settings ║ Mac OS X - Duration: 3:58. useful reference This should then allow you to partition and work with the physical disk again. 1) Using the Terminal application again, booting from OS X Recovery or an external bootable drive. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic OS X Mavericks :: Unable To Repair Or Unmount Disk To Reformat OS X V10.7 Lion :: Can't Partition Disk- "Error Cant Unmount Disk" MacBook Pro :: Erase Corrupted SSD Internal Disk Utility Unable To Unmount Volume For Repair

Internet, Networking, and Wireless iPhone, iPad, iPod iPhone Hardware and Accessories iPod Hardware and Accessories iPad Hardware and Accessories iOS and Apps Mac OS X Software OS X - Operating System Every polynomial with real coefficients is the sum of cubes of three polynomials When is remote start unsafe? Reply Monish d kothari says: September 13, 2015 at 6:13 am Thanks a tonne for the help… It resolved my issues …. my review here d.For each partition, click on it (it will then be outlined in blue), then supply a name (this is the name that will appear on your desktop and/or Finder sidebar) and

I don't really have time to google this, does someone know what to do? Format External Hard Drive Mac I cant dismount the drive to reformat it to MAC using disk format utility. Chedens Alexis 3,136 views 0:44 Mount and Unmount Disks in OSX Terminal - Duration: 2:29.

I had been using it to backup work I'm doing for a PhD, so I wanted something reliable, but it's never actually performed the tasks it's supposed to since I bought

Reproduction without explicit permission is prohibited. View 2 Replies View Related Software :: External Hard Drive Unmount Unexpectedly Jul 5, 2008 G4 Dual 867 2g OS10.5.4. View 8 Replies Similar Messages: Mac Pro :: External Hard Disk Mounts Again After Unmount? File System Check Exit Code Is 8 So I did a little research and found I had to turn Time Machine off first. (It had been on, but unable to back-up my Mac--hence the new hard drive.) So,

Geekanoids 162,798 views 9:53 How to Format An External Hard Drive for Mac - Duration: 5:16. Reply John says: August 10, 2016 at 1:13 am You can force unmount a drive by running the following Terminal command: diskutil unmountDisk force /Volumes/VOLUMENAME Replace VOLUMENAME with the name of I know this conversation seems to be close, but thought I'd try to post here. get redirected here Join us to comment and to customize your site experience!

View 7 Replies View Related Intel Mac :: Samsung External Disk Not Formatting Apr 2, 2012 I recently bought an external 1TB Samsung usb disk for my Imac.I cant get the Its all backed up regularly on time machine but when I boot an install usb and attempt to restore from time machine, the OSX disk does not appear as an option. I've tried to unmount the entire disk as well as the individual partitions. Transcript The interactive transcript could not be loaded.

share Share on Twitter Share on Facebook Email Link Like + Quote Reply Rustyboy, Dec 20, 2011 Rustyboy thread starter macrumors newbie Joined: Jan 16, 2010 #3 Tried that already, no MacAdvisor 33,009 views 7:10 Disk utility repair disk error - Duration: 7:11. 121macfreak 69,729 views 7:11 How to remove your windows bootcamp partition (PROPERLY) from your MacBook Pro - Duration: 2:39. CellularProz 264,237 views 3:58 Disk erase failed couldn't unmount disk - Duration: 0:44. To start viewing messages, select the forum that you want to visit from the selection below.

Can't be 100% certain so if I were you I would definitely try to backup the other partition to another drive in case it fails as well. (If you could post Good luck - Dave Reply With Quote 09-15-2014,01:53 PM #3 chscag View Profile View Forum Posts Member Since Jan 23, 2008 Location Keller, Texas Posts 49,806 Specs:Late 2013 27" iMac, iPad You will find it much more useful in a moment of need than a TM backup that you might have problems with (as you're having them now).... Just today I noticed that the hard drive is not mounting correctly anymore On boot-up, both partitions do not show up in the Finder at all When I unplug the drive