Have an external hard drive, which i used to boot up the iMac with el capitan, but i am still in the process of trying to erase the internal drive. Surprisingly, the LaCie XtremKey USB3 GUID 32GB previously (before breaking as described above) had a capacity of 32.37 GB (32.26 GB available; LaCie XtremKey media), but after flashing and re-formatting with If not, STFU. Reproduction without explicit permission is prohibited. have a peek at these guys
Their parsimonious and short-sighted behavior deserves all the bad news you can spread about them. http://www.stellarinfo.com/blog/repair-mac-hfs-hard-drive/ Hope this helps. But I am registered as a Mac OS X developer and my most recent update was 10.11.6 Beta 2 on 6 June, and after each iteration I run Onyx, reassign and How to select a number from all the integers list?
Thanks Reply Vishal April 8, 2016 If Disk Utility is failing again & again to format the hard drive then you can try formatting with Stellar Partition Manager utility. Georgina February 10, 2015 at 5:02 pm Hi, appreciate your post/help here. Wow! If you have any idea to get the HDD working or even safe the files, I would be really grateful.
Add to Want to watch this again later? Typically the "Couldn't Unmount Disk" error pops up when the currently boot drive is being modified, thus the easiest solution is to boot from another drive and run Disk Utility from If that's the case, you can milk more life out of it by installing your system on an external drive and running it from there. Volume Erase Failed Couldn't Open Disk Still getting those pesky disk errors?
Enter your email address below: Related articles: Dual Boot OS X 10.9 Mavericks and OS X 10.8How to Resolve a "Partition Failed" Error in Mac OS XHow to Verify (& Repair) JEFFMessage was edited by: SKULLYARD Mar 26, 2014 12:22 PM Helpful (0) Reply options Link to this post by BD_Gibbs, BD_Gibbs Mar 26, 2014 5:35 PM in response to SKULLYARD Level After the command has run for a few moments, if you cancel and then re-run "diskutil list" you will see the drive listed with no partitions on it, indicating it has http://www.stellarinfo.com/blog/couldnt-unmount-disk-error-mac/ The disk is 256 Gb SSD.
But the Mac's own Disk repair could not find it. Disk Erase Failed With The Error Couldn't Open Device Daniel Redfern 9,864 views 3:28 Fix: "Disk Erase Failed With The Error: Invalid Request" - Duration: 4:57. Alternatively, you can try placing the command in a looping script and then run the script as root, to apply the command as fast as possible: 1. I was an idiot and renamed my home folder and now I'm trying to format my computer because it doesn't recognize me or my password so not only can I not
Thank you! https://discussions.apple.com/thread/3894449?start=30&tstart=0 I surmise that, in this case, the problem is not with the drive but with the system which has somehow become constipated, for lack of a better word. Volume Erase Failed Couldn't Unmount Disk Because you're looking at blowing away the data on the drive anyway, another method that doesn't require timing is to connect the drive to a Windows machine and open up drive Can't Unmount Disk Mac HELP!0Disk Utility Weirdness: Macintosh HD Cannot Be Repaired But Then Has No Problems?0Hard disk doesn't show on boot after erasing with Disk Utility1OS X can't unmount disk0Messed up 1TB Fusion Drive
Please tell me how I can get the Registration key of Stellar Partition Manager Software? http://gsbook.org/unmount-disk/mac-os-x-disk-erase-failed-could-not-unmount-disk.php I formated my HDD from hfs to fat. Reply Ian Small says: January 30, 2016 at 2:57 pm Brilliant! This will bring in the drive menu. 4) Select the newly created boot DVD from this option. Error 69888 Couldn't Unmount Disk
Reply chris says: December 8, 2016 at 12:13 pm it still fails disc erase in utility, this drive is almost brand new, it's hardly been used, is there anything else I Alex January 14, 2015 at 10:34 pm Thanks for advice. thank you so much. check my blog Reply Monish d kothari says: September 13, 2015 at 6:13 am Thanks a tonne for the help… It resolved my issues ….
Thanks. Couldn't Unmount Disk External Hard Drive Or, alternatively, you could ensure that the code doesn't try to unmount the volume twice in the first place, but that might require actual work.)Here are the steps to reproduce the Does gunlugger AP ammo affects all armor?
Make sure to search before asking. –grgarside Jun 9 at 11:33 add a comment| up vote 1 down vote Disable Spotlight for that Hard Drive (System Preferences) https://discussions.apple.com/thread/1454712?start=0&tstart=0 share|improve this answer Any idea how to repair or format it? Thanks. Obviously they are, as you report. Force Unmount Mac At the unix prompt enter: diskutil list Press RETURN.
Jefferson Le Blanc August 2, 2015 at 7:49 pm Sorry it didn't work. Reply Alan Siu says: December 8, 2016 at 12:21 pm Try booting up Ubuntu and reformatting the drive (as FAT32) and then booting into Recovery Mode and re-reformatting it (as HFS+). When I try this for the hd, it says that it's not supported live. news OS X Device files The /dev folder has a number of different device files that are assigned to system components and peripherals, allowing programs to interact with them using system calls.
So, I'm in Recovery mode. This lists which process is run on the drive?. Now, to restoring all of the icons and the contents of the dock. Encryption was going on fine, when suddenly on 3rd day, my MCB (mid 2010) started ejecting My Book after few minutes.
Reply uzz says: July 21, 2016 at 1:05 pm You don't need any boot drive nor recovery partition utility to fix this error. DU shows Unmounting disk for just a little over a minute before a msg comes up saying "Disk Erase failed with the error: Unable to write to the last block of I have been using WD My Book Essential (3TB) as time machine. Booting into the internet recovery by starting up while holding cmd opt r, going into disk utility and then dragging down my main partition back to max worked, FINALLY, with no
Press Ctrl+C to abort execution of the last command in a minute (it's enough to just fill the beginning of the disk with random garbage). This is a good example of why it's very valuable to have a bootable USB thumb drive set up with whatever version of OS X is running on your Macs, because While the device "disk1" is used in this example, be sure to replace it with the device you found in step 2 above: cat /dev/random > /dev/disk1 It is likely that When I tried again, I got: Partition failed Partition failed with the error: Disk object invalid or unable to serialize.
Really appreciate your help. Launch up Terminal.app (through /Applications/Utilities or through a Spotlight search). Andrew January 3, 2015 at 4:41 pm Thanks Well done have used this twice Cristian (@ccontreras) January 4, 2015 at 8:23 am Hi , I am getting error “stdout: Input/output I tried this but it still didn't work, it says "unable to unmount 1 or more part" or something like that.
I AM THEN ABLE TO FORMAT THE DRIVE.TRY SELECTING "STARTUP DISK" AND REBOOT FROM WHATEVER EXTERNAL SOURCE YOU ARE USING.THANKS!