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Cannot Reformat Internal Hard Drive Mac
When I installed 10.10 it asked if I wanted to encrypt, so I did. Let us know a. Asked for a password...I typed in my usual password. If this happens, the drive may show up in the Finder sidebar but not show data when clicked, or it may just not show up but be present in Disk Utility; check over here
Link-only answers can become invalid if the linked page changes. All choices are greyed-out (Format, Name, Erase Free Space, Security Options, Erase). Jason M. You also cut off the heading of diskutil list (which should have /dev/disk0 some where).You need to boot using command+Opt+R (Internet Recovery - not local Recovery with Command+R) to be able http://apple.stackexchange.com/questions/125965/unable-to-format-erase-hard-drive
Error: -69888: Couldn't Unmount Disk
All it takes is a few clicks to get a fresh, clean drive formatted for your needs. Use Disk Utility<
Carter August 12, 2015 at 2:33 pm Was having trouble "cat..ing" /dev/random to the disk due to the resource busy response. Never miss out on learning about the next big thing.Update me weeklyAdvertisementTranslationsEnvato Tuts+ tutorials are translated into other languages by our community members—you can be involved too!Translate this postPowered byAppsAdvertisementWatch anycourse Reply ↓ B. Format Mac To Factory Settings Operating system is on the a seperate SSD internal drive in the standard drive bay.
Char August 22, 2016 at 9:44 pm This was a huge help, thank you so much! Partition Failed With The Error Couldn't Open Device It shouldn't be greyed out anymore. This process erases everything on the disk, including its files and all its partitions. Run the following command to attempt to overwrite the contents of the device file (which is the contents of the disk).
I'm new to MacRumors. Disk Erase Failed With The Error: File System Formatter Failed. It managed to boot! If I would not have read your name on this article, I would have stopped hitting cat /dev/random > /dev/diskx after the second time. Still, in all likelihood, it's mechanical failure of the drive head and not a problem with the SATA connection. –njboot Aug 20 '14 at 16:23 add a comment| up vote 0
Partition Failed With The Error Couldn't Open Device
My guess is if wiping the drive like this does not work, then it is likely the drive is beyond repair. In some cases, it's possible to convert your drive without losing files—like converting a hard drive from FAT32 to NTFS—but under most circumstances, the only way to change your file system Error: -69888: Couldn't Unmount Disk They are unable to erase or partition the drive. Can't Format External Hard Drive Mac wanted to erase it to give to my father to use as his Time Machine backup.
Hold down Command and R whilst restarting and use DiscUtility from there. http://fortecrm.net/hard-drive/cannot-reformat-hard-drive-vista.html Thanks for your answer Topher. And I can't erase the drive to get a brand new drive to work with.I don't need the old SU material on this drive, it was just a way to be Here you can check out the KB article for the same. Volume Erase Failed Couldn't Open Disk
Cancel Add your answer Jim Young will be eternally grateful. Their parsimonious and short-sighted behavior deserves all the bad news you can spread about them. The partitioning schemes accessible with it include FAT (all versions). http://fortecrm.net/hard-drive/cannot-reformat-hard-drive-partition.html Never can understand while people do not maintain at least one bootable external drive and consider DiskWarrior to be useless.
Lloyd Smith September 15, 2016 at 11:23 am A long time to reply, but when someone assumes that the person they are responding to is pretty much a dullard and finally Reformat Hard Drive Mac Disk Utility This has helped keep my mental sanity on numerous occasions with corrupted drives. This process won't actually convert the file system.
The current situation is thus: I plug into a USB port, the activity light comes on, sometimes steady, sometimes flashing to indicate communication with the Mac, until ultimately (up to 10
This time, reformatting by the Mac worked. It can fix far more than Disk Utility and might be able to restore your volume's file catalog to the point where you can use it. When this happens, wait a few moments as mentioned in the article, and then close the Terminal, confirming to cancel running processes. Could Not Mount Disk0s2 With Name (null) After Erase If I run Disk Utility repair for the drive, I get: Alert Some information was unavailable during an internal lookup.
During this time, the command will be writing to the disk, so you can wait a few moments and then press Control-C to halt the command. That being said, it's always a good idea to reformat a new drive before you use it to be sure it's initialized in the desired layout. Using this bootable USB device we can boot (or start) a computer and perform data recovery or other tasks. have a peek at these guys Plug-and-play.