Flesh out the reason for the need for tmpfs a little.

Sponsored by: Netflix
This commit is contained in:
Warner Losh 2017-12-20 16:02:11 +00:00
parent 71688f3b71
commit 8c0fa2cc56
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=327027

View File

@ -144,7 +144,10 @@ After changing vfs.root.mountfrom with
can be used to change the root filesystem while preserving kernel state.
This requires the
.Xr tmpfs 5
kernel module to be loaded.
kernel module to be loaded because
.Xr init 8
needs a place to store itself after the old root is unmounted, but
before the new root is in place.
.El
.Pp
The