In living through this "great epoch," it is just, And this be our motto - "In God is our trust," And the rocket's red glare, the bomb bursting in air, Gave proof through the perilous fight O'er the ramparts we watch'd were so gallantly streaming? And the star-spangled banner in triumph doth wave O'er the land of the original much-imitated EMACS editor, now at the Artificial Intelligence Lab at MIT. I fucking love Lennart Poettering! 除非明确指定挂载其他的文件系统到/tmp 在 /etc/fstab中配置， systemd将会挂载/tmp 作为tmpfs。 这意味着它在每次启动时被清空，其大小将被限制在系统的RAM（内存）大小的50％。