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--- ubuntu:disk:ramdisk:create_a_ramdisk [2021/06/22 10:46] – created peter
+++ ubuntu:disk:ramdisk:create_a_ramdisk [2021/06/22 13:36] (current) – peter
@@ Line 1: / Line 1: @@
 ====== Ubuntu - Disk - Ramdisk - Create a Ramdisk ======
+===== Create a Ramdisk =====
+<code bash>
+mkdir /mnt/ramdisk
+mount -t tmpfs -o rw,size=240G tmpfs /mnt/ramdisk
+</code>
+<WRAP info>
+**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.
+</WRAP>
+----
+===== Verify the Ramdisk =====
+Verify that the RAMDISK has been created.
+<code bash>
+df -h
+</code>
+----
+===== Mount the Ramdisk automatically on system boot =====
+Edit /etc/fstab, and add the following line to the the end of the file.
+<file bash /etc/fstab>
+tmpfs  /mnt/ramdisk  tmpfs  rw,size=240G  0   0
+</file>
+----