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RD(4)                    BSD Kernel Interfaces Manual                    RD(4)

NAME
     rd -- ramdisk driver

SYNOPSIS
     pseudo-device rd [count]

DESCRIPTION
     The rd driver enables use of system or user memory as a disk.  Memory for
     the disk must be allocated and initialized inside the kernel image at
     build-time using the elfrdsetroot tool.

     The elfrdsetroot tool is available as part of the distribution toolset.

FILES
     /dev/rd??      Block mode ramdisk devices.
     /dev/rrd??     Raw mode ramdisk devices.

SEE ALSO
     elf(5)

BSD                            October 18, 2013                            BSD