pivot_root()?
pivot_root()?
Posted Mar 14, 2026 5:07 UTC (Sat) by intelfx (subscriber, #130118)In reply to: pivot_root()? by NYKevin
Parent article: Practical uses for a null filesystem
Another guesswork-grade interpretation is that the "real rootfs" is declared and/or constructed statically somewhere within Linux, and simply cannot be destroyed as a conseqence of that.
But I am indeed confused as well by this limitation. Surely removing the underlying cause would have been easier than switching the entire mechanism to use nullfs.