sudo /usr/net/local/mkramdisc

Create a dynamically growing ramdisc. Perhaps useful for Davids Simulation. http://www.vanemery.com/Linux/Ramdisk/ramdisk.html

#!/bin/sh
sudo mke2fs /dev/ram0
sudo mount /dev/ram0 /media/ram0
sudo chown BENUTZERNAME /media/ram0
sudo chmod u+rwx /media/ram0

To fix the size of the ramdisc you have to add a parameter to the kernel boot line.

/etc/default/grub

$KERNELPARAMTER ramdisk_size=[how many kB]

The maximum size of one ramdisk is limited to 4 GB (32Bit??), you can have several ramdisks. The default size of a ramdisk is 64 MB. For example to create a ramdisk of 2GB size:

ramdisk_size=2000000

To see the possible maximum size of the ramdisc as defined in the ramdisk-size parameter you can take a look in the kernel messages.

dmesg | grep RAMDISK