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Created April 19, 2018 06:18
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Create RAM disk in macOS High Sierra (10.13.3)
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ramdisk-howto.md

Create RAM disk in macOS High Sierra (10.13.3)

LIST DISKS

$ diskutil list

RAMDISK CREATE

$ hdiutil attach -nomount -nobrowse ram://120000               # 120000 * 512bytes

$ newfs_hfs /dev/disk*                                         # <- * is number generated by previous command

$ mount -t hfs -v /dev/disk* /tmp/ramdisk                        # <- * is number generated by previous command

RAMDISK DELETE

$ umount /tmp/ramdisk

$ hdiutil detach /dev/disk*                                    # <- * is number generated by previous command
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