Trivial ramdisk for Linux 2.4 Usage: make mknod /dev/trd b 240 0 insmod trd.o trd_size=SIZE where SIZE is in k. You can also use any minor device numbers as separate ram disks. eg: mknod /dev/trd5 b 240 5 then use /dev/trd* in the usual way as block devices. Limitations: - memory is allocated when the device is first opened - there is no way to release the memory of just one minor device at a time