For the older Mac OS X like 10.6 or earlier, the opportunity lies in a SuperDrive and a bootable DVD, and this can also offer the same resolution. (3) Fixing With DON'T DO ANY OF THE FOLLOWING IF YOU ARE NOT FAMILIAR WITH THE COMMAND LINE AND UNIX - ELSE YOU CAN DAMAGE YOUR COMPUTER SERIOUSLY. Hot Network Questions How to send the ESC signal to vim when my esc key doesn't work? Thanks very much. navigate to this website
If you do, Windows may direct you to download the drivers you need, which means more rooting around on Windows web sites. Reply marita says: January 26, 2016 at 2:48 pm What to do when the problem happens when i am trying to erase the internal hard drive to sell my pac book My internal SSD appears as "Virtual Whole Disk" in Disk Utility. Thanks! click to read more
Even here, though, one will eventually reach a point of diminishing returns. Reply Nicola says: July 26, 2016 at 4:43 pm Thank you!! You can then run Disk Utility from there.
If you can formate the drive on Windows, you can then mount it on your Mac and reformat it HFS+ if you like. Such boot drives are easy to create on your own, here are instructions for making boot disks for OS X 10.9, OS X 10.8, and OS X 10.7. Now with the help of the Mouse pointer, drag the sidebar to resize your Mac HD 2 partition. Can't Unmount Disk Mac Gemsbok Apple Tips and Tricks 3,235 views 6:11 Solution Disk Erase Failed with error Couldn't unmount disk mac - Duration: 3:28.
Reply Del Rey says: December 3, 2016 at 6:45 pm Worked for me reformatting a Seagate Backup plus to use with OS 10.6.8. Disk Erase Failed Couldn't Open Device You cannot use it on the same drive you are trying to partition or change partition sizes, attempt to activate, etc., but I assume you are using an external drive you Im just happy i didn't have any files on the computers, so nothing was lost, just my time it took to fix them. Skip to content St.
How do I do this without loosing or messing up my Mac. Erase Process Has Failed. Press Done To Continue Daniel Redfern 11 views 4:35 How to Format An External Hard Drive for Mac - Duration: 5:16. Reply Monish d kothari says: September 13, 2015 at 6:13 am Thanks a tonne for the help… It resolved my issues …. Thanks.
Angelo Maralit 214,796 views 4:13 Reset Mac to Factory State and Delete Personal Data Securely - Duration: 2:57.
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 Mac Volume Erase Failed Couldn't Open Disk Regards Vishal Reply Jacob May 26, 2015 Suggest me some free data recovery apps. Partition Failed With The Error Couldn't Unmount Disk These devices include disks, consoles, terminals, and standard input and output, among others (click for larger view).
MaX April 9, 2014 at 12:44 pm Thanks for your help. http://gsbook.org/unmount-disk/disk-utility-erase-error-could-not-unmount-disk.php I have done as you said. I tried this but it still didn't work, it says "unable to unmount 1 or more part" or something like that. Plug-and-play. Couldn't Unmount Disk External Hard Drive
And finally run the script, immediately followed by attaching your drive to the Mac: ./formatdrive.sh When you do this, the script will run rapidly and output many "not permitted" or "permission 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. You want to ensure all logic is destroyed on the drive, so it can be re-written from scratch, instead of being interpreted by your system. my review here Seems your hard drive is corrupt and beyond the repair of Disk Utility.
MARLON February 16, 2015 at 6:55 pm Hi! Error 69888 Couldn't Unmount Disk Jefferson Le Blanc June 18, 2016 at 9:37 am It appears that your system caches got corrupted at some point. Though drive defragmentation is controversial, I've found it to be useful.
Reply Alan Siu says: April 18, 2016 at 1:40 pm That's an odd one. I read about your solution above, but wondering if it would work on the internal SATA hard drive. Also, if you could format a flash drive with the newer NTSF format, if would not work on a Mac without additional software. At Least One Volume Could Not Be Unmounted As a FYI, the result I got upon trying to run the ./formatdrive.sh batch file due to the operation not supported or device busy situation caused my Mac to crash when
Sign in to add this to Watch Later Add to Loading playlists... Clang August 25, 2015 at 12:36 am Hot damn! Reply Alan Siu says: April 18, 2016 at 1:40 pm That's an odd one. http://gsbook.org/unmount-disk/mac-os-x-disk-erase-failed-could-not-unmount-disk.php Loading...
This way, if the drive truly is broken, at least your data will be safe. Tried again with internal osx drive and still won't recognized 2nd drive. Some typos in my response.