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  • June 16, 2012 at 10:43 pm in reply to: Making RAM disks in 10.6 that are -notremovable #382466
    slewsys
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    The `-kernel’ flag is needed since 10.5 (??):

    MFS=$(/usr/bin/hdiutil attach -kernel -notremovable -nomount ram://2200000) &&
    /usr/sbin/diskutil erasevolume HFS+ web-ram "$MFS"

    NB: Per the hdid(8) man page, $MFS can be unmounted, but its backing RAM is wired and cannot be reclaimed “cleanly” without  reboot.

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