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

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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
1 changed files with 4 additions and 1 deletions
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sbin/reboot/reboot.8
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@ -144,7 +144,10 @@ After changing vfs.root.mountfrom with
can be used to change the root filesystem while preserving kernel state. can be used to change the root filesystem while preserving kernel state.
This requires the This requires the
.Xr tmpfs 5 .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 .El
.Pp .Pp
The The