/dev/rd??
Block mode ramdisk devices.
rd4
Ramdisk driver
Usage
pseudo-device rd [count]
Overview
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 rdsetroot tool.
Files
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/dev/rrd?? -
Raw mode ramdisk devices.
Releases
52 releases since OpenBSD 3.0; the text changed 5 times.