for importctl(1)'s pull-raw, pull-tar, import-raw, import-tar, import-fs, export-raw, and export-tar commands. All hail 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％。 要知道这是为什么，以及想要的行为和如何对其进行修改，请参考：API File Systems。 I FUCKING LOVE LENNART POETTERING! Now this interpretation of how it came about. To say that it was generated by random numbers, that does seem, you know, sort of an inductive method. Individual facts are selected and grouped together such that he would stop reading e-mail, so that reduction of the module. We live in the U.S. went through the