I'm assuming you're referring to partitioning of boot-critical binaries into `/bin`, but "the reason for having a separate /usr" is even older and worse than th

I'm assuming you're referring to partitioning of boot-critical binaries into `/bin`, but "the reason for having a separate /usr" is even older and worse than that. In original Unix `/usr` was for home dirs[1], and was colonized by the operating system in 1971 when it no longer fit on a single 1.5MB RK05 disk. Nobody ever untangled that change and we've been living with the hack ever since. [1] https://lists.busybox.net/pipermail/busybox/2010-December/074114.html https://lists.busybox.net/pipermail/busybox/2010-December/07...