====== Ubuntu - Disk - Ramdisk - Create a Ramdisk ======
===== Create a Ramdisk =====
mkdir /mnt/ramdisk
mount -t tmpfs -o rw,size=240G tmpfs /mnt/ramdisk
**NOTE:** This mounts a ramdisk with 240GB under the path /mnt/ramdisk.
* **-t tmpfs**:
* tmpfs only uses memory when you it contains files.
* When it is empty, it will take almost no space in RAM.
* An alternative to **tmpfs** is to use **ramfs**.
* tmpfs can use swap as well, whereas ramfs devices are memory only.
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===== Verify the Ramdisk =====
Verify that the RAMDISK has been created.
df -h
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===== Mount the Ramdisk automatically on system boot =====
Edit /etc/fstab, and add the following line to the the end of the file.
tmpfs /mnt/ramdisk tmpfs rw,size=240G 0 0
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