I have a MacBook Pro running OSx 10.9.4 and have been successfully using Time Machine with a WD My Passport External Hard Drive for a while. Now (after 10 days with a successful back-up), the computer will not back-up. I have gone into disk utility and tried to erase, partition, and/or repair the disk, but repeatedly get error messages - it can't erase the disk, re-partition the disk or unmount the disk.
Info: MacBook Pro (13-inch Mid 2010), OS X Mavericks (10.9.4), External Hard Drive
I've just transferred my data to a new computer and now need to erase the hard drive on my old one.. I've tried Disk Utility, increased the security, and tried 'erase' but I keep getting an error message "couldn't unmount disk". I've gone into Partitions and tried deleting the HD there as well but I get the same message. I just want to get the computer securely wiped and would like to keep Lion as the operating system.
I want to carbon copy my bootable external drive to my main internal bootable hard drive so I tried to use Disk Utility to erase it but it will indicate that it failed and can't unmount. When I tried to manually unmount by dragging it to the trash it indicated that it is in use. I can't understand why it's in use since I booted from the external drive which I wanted to the copy to the internal drive.
I have a 2.5" hard drive connected via USB to my MacBook that keeps unmounting itself. This happens under some (what seems to be) undetermined amount of time, the drive will all of a sudden unmount itself and disappear from the Finder, Disk Utility, et al.
Is there some fix, setting or work around for this? Very annoying. If not, is there a way to re-mount the hard drive without turning it off then on or reconnecting the USB cable?
I am having problems ejecting the external hard drive that I use to back up my laptop. It is a 2012 MacBook Pro running Mountain Lion OSX 10.8.5. My external hard drive is a WD 2 TB My Book Studio. I use it to back up my laptop with Time Machine. Every time I try to eject my disk now I am told that "The disk (Diskname) wasn't ejected because one or more programs may be using it." I have tried some solutions like to stop Spotlight from indexing the disk and to try and turn off TimeMachine, but neither of these worked. The only thing that has worked so far is to log out of my user name and log back in with a guest user and eject it from there. This takes up a lot of time and is ultimately not really a sustainable way of working on my computer.
I have a Hitachi Touro USB 3.0 1TB external hard drive that has always worked on my Macbook. Formatted in FAT so it would work on both my PC and Mac. I can't remember exactly when it stopped working, but I think I had to reset my mac once as it stopped responding and the HDD was plugged in. After that it stopped showing up in Finder, but still appears in Disk Utility. It also shows up in Storage under "About This Mac". I've tried resetting my computer, ran Apple Hardware Test, and have tested the hard drive on other computers and it works fine. Just doesn't show up in Finder on my mac!!
Info: MacBook Pro with Retina display, OS X Mountain Lion (10.8.5), 13" Late 2012 model
After a couple of years of lurking around, searching for myself, I finally come out and ask for some help. My questions are intertwined, and I am unsure how to break up what into what. I am lost; forgive me my ignorance.The Scenario: I just got a Mac Box Set, and want to install Leopard.1. A new 400GB Passport. Existing 350GB--relatively new, getting a little glitchy. Only has copies of pix/video data on it.2. One MacMini, one Macbook Pro.3. Would like to backup bootable volumes for both macs.
Since the harddrive of my IMac was full, I added an external harddrive to the system for my photos. I use another external harddrive for time machine back-ups (backing up both the IMac and external harddrive with my iPhoto libraries). Recently the EHD with my photo libraries crashed. I now want to restore it from time machine onto a new external harddrive, but am not quite sure how to do this.
Info: iMac (21.5-inch Late 2009), OS X Mountain Lion (10.8.2)
I've been having problems booting into my OSX partition. At the time it started I wasn't using my Macbook Pro (Late 2009) very often so whenever I needed I just booted up into my BOOTCAMP partition. Anyways, I decided to finally stop being lazy and do a clean install. There's nothing on either partition of the same hard drive that I want. I put together a bootable USB drive and boot from it. From here I go to the Disk Utility and try to erase the entire drive. It gives me this error: URL....
Now, that's not a screenshot from my mac but its the exact same error. Anyways, I've tried to find something on point but I just can't. Some posts have stated that the hard drive is broken, but if that's the case why can I start up the BOOTCAMP partition of the exact same drive flawlessly? I can even manipulate files on the OSX partition from Windows 7.
I am trying to create a bootable copy of my mac and would like to include the windows XP partition as well. I am planning to install this copy onto multiple CPU's after I have created it on the external HD. Is there a way to copy both partitions onto the external and what should the formatting look like.
I'm trying to erase my SSD internal drive that is corrupted software (Yosemite).I'm booting from an external with 20GB Yosemite OS & 480GB that contains files I've dragged off the internal SSD.I'm getting the error:Volume Erase failed with the error:Couldn’t unmount disk.How can I get around this?
I am having trouble installing Lion on a partitioned hard drive I have three internal HD's The first I am running the system on 10.6.8 (which is up to date) , the second I do most of my work on and the third I have partitioned into two and I am trying to install Lion on one of the patitions. But Lion has decided it will only go on the first HD. Above is the one I want to put it on, but it's not available and I can't change the partition scheme. None of the things the directions state are usable?
I am using a macbook with an Intel Core 2 Duo (about two years old) and I am running leopard (10.5.8).
I have been using a Western Digital 250GB External Hard Drive with a firewire connection to utilize Time Machine for the past 6 months. All was going reasonably well until recently. (It would occasionally get stuck backing up and I would have to restart my computer and then backup again, but otherwise ok)
Last week I turned my computer on and it didn't recognize the drive. It gave me the "Initialize" "Ignore" option screen. I tried everything before I tried erasing it, but eventually I decided to lose all of that backed up data and just erase the drive and start from scratch. (I backed up on a different drive prior to trying this.)
Anyway, now when I go into Disk Utility and click on the Erase tab and then try to erase the drive (doesn't matter which erase option I choose) it says it is unable to erase the drive. If it is plugged in w/the Firewire cable then it gives me an "Invalid Argument" error. If it is plugged in with the USB cable, it gives me a input/output failure error.
Does anyone know if I can fix this drive? Any ideas as to what may have caused the problem in the 1st place. Months ago I accidently unplugged the drive without ejecting, but it worked for for a long time after that.
Macbook OS X 10.5.8 and a WD 10EAVS 1TB External Hard Drive. That's all. I was given this by a fellow student on campus who was graduating. So I want to use this to store my iTunes Library (my Macbook's hard drive ran out of space). Here's what I do:
- Macbook is turned on and running
- I plug the external hard drive into a working outlet --> Hard drive turns on
- I plug the external hard drive into the mac using a USB connection --> Disk Insertion Error message: the disk you insterted was not readable by this computer
- It is not readable so I open it in Disk Utility (the hard drive is listed/recognized)
- I attempt to erase and/or partition the hard drive in order to format it in Mac OS Extended OR Mac OS Extended (Journaled), but I get one of these two messages: "Disk Erase failed with the error: File system formatter failed." OR "Disk Erase failed with the error: The underlying task reported failure on exit."
I attempted to look up what these mean or how to fix the problem but nothing is really working. I was able to format the hardware line to MS-DOS (FAT) and the sub-line as Mac OS Extended (Journaled) but I don't even know if that's right or not.Basically, I need my computer to recognize this hard drive whenever I plug it in and to run smoothly as "extra space" to store my music on.I haven't had A LOT of experience with external hard drives but enough to get things done. But this problem is a killer.
I have an external hard drive that was used on a PC. I want to use it on a Mac. I went into disk utility and did an erase. (Extended Journaled and in security options changed it to zero out data). I can now use it on the Mac how ever it is telling me that there is 54.1 MB of used space. I want to have access to this. How do I do it?
My Mac Pro [with 4 internal disks, 2 External Disks (Sata Raid 0), and several external FireWire disks and a Voyager disk station] has a little problem with letting externals go Since a few weeks I have a problem with unmounting my externals. After unmount, the unmounted disk will mount again immediately.No time to disconnect cables and/or power. Hinders disk management, backup, and simple disconnecting disks. It only happens with disks (FireWire 400/800/ SATA and USB alike). USB sticks work fine.
I tried reformatting while running Snow Leopard, but the option was grayed out and the install disc made the computer hang at the white bootup screen. I figured I'd just upgrade to Lion and do a clean install (not an option).
After upgrading to Lion, I booted into recovery to erase the hard drive. I did it and it took less than ten seconds (bad sign).
Now I can't get past recovery and the hard drive is still full.
I have a MacBook Air with 251 GB of hard drive space, yet I only have 3 gigabytes free. I checked all my folders and they certainly do not add up to 248 GB, so where is all of this coming from? I checked my activity monitor and there is nothing that drastically large neither.
for some reason I bought the infamous 2011 mac pro, and the hard drive kept having IN/OUT problems and after it destroyed half day of work, I decided to get a new hard drive, *blue WD 500g" but i have tried EVERYTHING and i just cant install mountain lion on it.
1.- i tried forcing the recovery mode so It would connect to the internet and download mountain lion but after 10 min or so i trows the -2002f error at me
2.- I tried to use the old hard drive that i put on a external hard drive reader so I could get the recovery partition but i just keep restarting the installation no reason given
3.- downloaded the mountain lion and tried to installing it on the system hard drive of the laptop trough a computer running snow leopard but dosn't let me.
4.- tried the same thing on target mode without success
5.- using the recovery partition I used disk utility to se of the partition was locked but it was not
6.- created a different partition to see if it would install it there didn't work.
I have an external hard drive that is about one third full. Can I now partition it into 2 partitions in which the existing data is in Partition 1, and Partition 2 is empty and available for new, different data?
I partitioned my harddrive to put Windows XP on it. Then I decided I didn't want to put Windows XP on it. So I unpartitioned the harddrive using Disk Utility and my Mac shows that the hard drive is not partitioned, however, when I turn on my computer I have to hold down the "Option" button in order for me to choose to boot from the Macintosh HD. If I don't hold down the "Option" button a black screen shows up that says "Please enter a bootable disk" or something of that nature.
So I just partitioned my drive to install Windows and noticed that my hard drive is now making that "crunching" sound that some hard drives make. It started during my Windows installation, and it happens regularly in Windows.
I also briefly hear it while OSX is starting up, but it doesn't seem to happen much in OSX. I've launched a bunch of applications and it is still pretty much silent. Any ideas what could cause this? Could it be NTFS? I have several hard drives in my PC that don't make that sound. I am using a 17" MacBook Pro unibody with the regular 320gb 5400rpm drive that it comes with.