root@pkara-pc01:~# mkdir -p /tmp/shared
root@pkara-pc01:~# mount -t tmpfs -o size=1G mymount /tmp/shared/
root@pkara-pc01:~# mount -t tmpfs -o size=1G mymount /tmp/shared/
root@pkara-pc01:~# mount | grep -i shared
mymount on /tmp/shared type tmpfs (rw,relatime,size=1048576k)
mymount on /tmp/shared type tmpfs (rw,relatime,size=1048576k)