I was trying to understand the term of rootfs, excatly what is it, but I am still not sure about it. Many sources are not clear about it. Is the rootfs:
1. a name of a specific type of filesystem?
2. an alias to the real filesystem, like ext3, ext4 etc., which mounting point is a root folder (‘/’)?
3. just a hierarchical structure, based on FHS?
In: 5
rootfs is a special instance of a tmpfs, it contains the uncompressed contents of the initramfs. As the name suggests it is mounted at `/` however usually the system will mount another filesystem on top of it after init is started.
[This](https://www.kernel.org/doc/html/latest/filesystems/ramfs-rootfs-initramfs.html) kernel doc has more specific info.
Latest Answers