I want to make a partition that is made of ram ...
Example
In windows 7 you can make a partition that is made of ram
I have created 1 GB of partition in ram . using Primo RamDisk
Is there any good Alternative in Ubuntu ?
This will show you how to make a RAMDISK super fast and easily. With
a RAMDISK you can use your memory for temporary space and it’s also a
lot quicker than your hard drive.
Now lets start by using the next 2 commands to make your RAMDISK.
Put whatever you want your RAMDISK to be called where I wrote
“nameme”.
mkdir -p /media/nameme
mount -t tmpfs -o size=2048M tmpfs /media/nameme/
The above commands would use 2GB of my RAM for the RAMDISK. If you don’t have as much ram as I do I would use 512MB or 1GB. So next were going to create a command for Terminal that will automatically create the RAMDISK for you.
Source: How To Create A RAMDISK In Linux
