doubt:
- What is a file system?
- What is the root file system?
- Since the kernel starts to mount the root file system, after mounting the root file system, isn't it possible to create and access files with terminal shell commands? Why do you need to mount other file systems? How many file systems should be mounted during the boot process?
- File systems generally correspond to physical storage devices, so how do they correspond specifically? The ramdisk file system manages the ram space, so won't the data disappear after power failure? Is it necessary to mount another file system in the flash space in this case?
Reference article: What is a file system and what is a root file system?