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Save others some forehead damange by noting that -r require tmpfs.

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Reviewed by:	bapt
This commit is contained in:
Brad Davis 2017-12-20 15:21:29 +00:00
parent d0aec74836
commit 71688f3b71
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=327025
1 changed files with 4 additions and 1 deletions
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5
sbin/reboot/reboot.8
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@ -28,7 +28,7 @@
.\" @(#)reboot.8 8.1 (Berkeley) 6/9/93
.\" $FreeBSD$
.\"
.Dd October 23, 2017
.Dd December 20, 2017
.Dt REBOOT 8
.Os
.Sh NAME
@ -142,6 +142,9 @@ After changing vfs.root.mountfrom with
.Xr kenv 1 ,
.Nm Fl r
can be used to change the root filesystem while preserving kernel state.
This requires the
.Xr tmpfs 5
kernel module to be loaded.
.El
.Pp
The