![]() ![]() If the Security Options button is not available, Disk Utility cannot perform a secure erase on the storage device. Secure erase options are available only for some types of storage devices. What filesystem for an external Harddrive (Linux/Mac/Windows) - Ask Ubuntu What filesystem for an external Harddrive (Linux/Mac/Windows) closed Ask Question Asked 12 years, 4 months ago Modified 10 years ago Viewed 55k times 32 Closed. (Optional) If available, click Security Options, use the slider to choose how many times to write over the erased data, then click OK. 1 Answer Sorted by: 2 Well, Mac OS X supports msdos (aka vfat or fat32) and as of 10.6.5 supports fat64, so thats one option. If the Scheme pop-up menu isn’t available, make sure you selected the storage device you want to erase-it’s at the top of the hierarchy.Ĭlick the Format pop-up menu, then choose a file system format. Ĭlick the Scheme pop-up menu, then choose GUID Partition Map. In the sidebar, select the storage device you want to erase, then click the Erase button. ![]() If you want to erase any other type of storage device: Double-click Disk Utility in the /Applications/Utilities folder. fat, ext2 and ext3 are basically obsolete and ext4 is not accepted by Microsoft. Note: If you want to get your Mac ready to trade in, sell, or give away, and your computer is a Mac with Apple silicon or an Intel-based Mac with an Apple T2 Security Chip, use Erase Assistant. 14 What is the best to do for external hhd in 2019. ![]()
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