2 .\" Copyright (c) 2013 Dag-Erling Smørgrav
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33 .Nd print the version and patch level of the installed system
40 utility makes a best effort to determine the version and patch level
41 of the installed kernel and / or userland.
43 The following options are available:
46 Print the version and patch level of the installed kernel.
49 if a new kernel has been installed but the system has not yet
52 will print the version and patch level of the new kernel.
54 Print the version and patch level of the installed userland.
55 These are hardcoded into
66 will print the kernel version first, then the userland version, on
68 If neither is specified, it will print the userland version only.
69 .Sh IMPLEMENTATION NOTES
72 utility should provide the correct answer in the vast majority of
73 cases, including on systems kept up-to-date using
74 .Xr freebsd-update 8 ,
75 which does not update the kernel version unless the kernel itself was
76 affected by the latest patch.
78 To determine the name (and hence the location) of a custom kernel, the
80 utility will attempt to parse
81 .Pa /boot/defaults/loader.conf
83 .Pa /boot/loader.conf ,
84 looking for definitions of the
88 variables, both with a default value of
90 It may however fail to locate the correct kernel if either or both of
91 these variables are defined in a non-standard location, such as in
96 Path to the root of the filesystem in which to look for
101 To determine the version of the currently running userland:
102 .Bd -literal -offset indent
103 /bin/freebsd-version -u
106 To inspect a system being repaired using a live CD:
107 .Bd -literal -offset indent
108 mount -rt ufs /dev/ada0p2 /mnt
109 env ROOT=/mnt /mnt/bin/freebsd-version -ku
114 .Xr freebsd-version 8
123 utility and this manual page were written by
124 .An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .