[singlon]

BTW singlion OS is now using volatile RAM ramfs ram file system
whole disk whole partition can be used and u no need to worry abt size just start with any initial size say 512

step1: Create a folder to use as a mount point for your RAM disk.
mkdir /mnt/ramdisk

step2:mount -t ramfs -o size=512m ramfs /mnt/ramdisk

step3 : make persistence after a reboot
nano /etc/fstab
add this line :
ramfs /mnt/ramdisk ramfs nodev,nosuid,noexec,nodiratime,size=1024M 0 0