CANT UNMOUNT MY PASSPORT MAC OS X 10

Cant Unmount My Passport Mac OS X 10

The errors may resident in the partition table, file system, root directory or large data sectors. Different from hardware damages, a corrupted external hard drive usually results from software errors. Any other solution, tip, idea My device is anyway under warranty, could wd. I googled it and I try with Terminal.app, restart the system cmd+R and Utility Disk but everything didnвЂ™t solve it. If i try to erase or make Partition I get the following message: Unable to write to the last block of the device. Hallo everyone, since two days My Passport for Mac cannot be read on my Mac OS X 10.9.5.

To fix a corrupted external hard drive on Mac, the solutions are categorized into without formatting and by formatting.Fix a corrupted external hard drive without formattingFormatting usually is the least wanted solution for fixing the problem, so we gather two fixes without formatting here.It sounds dumb but working very well. Running 10.6.3The corruption not only happens to external hard drives but also to internal Mac hard drive and other external devices. Seems that do shell script diskutil unmountDisk & diskDev canвЂ™t find my disk. Finder got an error: unmount failed for disk.

Reboot the Mac/MacBook to refresh all USB ports. Use another USB port/cable/hub/adapter. Wipe the USB port with a clean and dry towel to get rid of any dust or other material. Make sure the connection is clean and firm.

It will remove all errors by writing a new file system on the external hard drive and prepare it as a new and blank disk for use.Before handling the formatting, you need to make sure you have adequate backups of important files. Click on the First Aid button, or right-click the external hard drive and choose First Aid from the options.If you see the messages telling you that the First Aid failed, the external hard drive is too corrupted to be fixed by First Aid.Fix a corrupted external hard drive by formattingWhen the external hard drive has been badly corrupted, formatting will be the last fix. Select the external hard drive at the left side. Open Disk Utility through Finder and Applications. In this case, you can use it to repair the corrupted external hard disk.

In fact, a lot of precautions you can take to avoid the early disk corruption. The Mac/MacBook can mount and read the external USB hard drive successfully now.How to prevent the external hard drive from corruption?Even though disk corruption is something that will eventually happen, it doesnвЂ™t mean that it will happen soon. Click on the Erase button, or right-click the external hard drive and choose Erase from the options.After the external hard drive is completely formatted, you need to safely eject it and replug it back to the computer.

Cant Unmount My Passport For Mac