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author | ian <ian@FreeBSD.org> | 2016-02-21 18:58:05 +0000 |
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committer | ian <ian@FreeBSD.org> | 2016-02-21 18:58:05 +0000 |
commit | 6683c94ec1440b11af4eeaa54cfdbeae7331377a (patch) | |
tree | 9c9d522367dc197caa120e956f4e505759539840 | |
parent | f523bd6c78181527b21a37f4dc5c51e0517bf523 (diff) | |
download | FreeBSD-src-6683c94ec1440b11af4eeaa54cfdbeae7331377a.zip FreeBSD-src-6683c94ec1440b11af4eeaa54cfdbeae7331377a.tar.gz |
Document the ability to override compiled-in env and hints using variables
in the bootloader-provided env.
-rw-r--r-- | usr.sbin/config/config.5 | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/usr.sbin/config/config.5 b/usr.sbin/config/config.5 index dfc9fc8..e0e92b8 100644 --- a/usr.sbin/config/config.5 +++ b/usr.sbin/config/config.5 @@ -23,7 +23,7 @@ .\" .\" $FreeBSD$ .\" -.Dd December 3, 2005 +.Dd February 21, 2016 .Dt CONFIG 5 .Os .Sh NAME @@ -118,7 +118,8 @@ The kernel normally uses an environment prepared for it at boot time by .Xr loader 8 . This directive makes the kernel ignore the boot environment and use -the compiled-in environment instead. +the compiled-in environment instead, unless the boot environment contains +.Va static_env.disabled=1 . .Pp This directive is useful for setting kernel tunables in embedded environments that do not start from @@ -141,7 +142,9 @@ time (see .Xr device.hints 5 ) . This directive configures the kernel to use the static device configuration listed in -.Ar filename . +.Ar filename , +unless the boot environment contains +.Va static_hints.disabled=1 . The file .Ar filename must conform to the syntax specified by |