|FREEBSD-VERSION(1)||FreeBSD General Commands Manual||FREEBSD-VERSION(1)|
NAMEfreebsd-version — print the version and patch level of the installed system
DESCRIPTIONThe freebsd-version utility makes a best effort to determine the version and patch level of the installed kernel and / or userland.
The following options are available:
- Print the version and patch level of the installed kernel. Unlike uname(1), if a new kernel has been installed but the system has not yet rebooted, freebsd-version will print the version and patch level of the new kernel.
- Print the version and patch level of the installed userland. These are hardcoded into freebsd-version during the build.
If both -k and -u are specified, freebsd-version will print the kernel version first, then the userland version, on separate lines. If neither is specified, it will print the userland version only.
IMPLEMENTATION NOTESThe freebsd-version utility should provide the correct answer in the vast majority of cases, including on systems kept up-to-date using freebsd-update(8), which does not update the kernel version unless the kernel itself was affected by the latest patch.
To determine the name (and hence the location) of a custom kernel, the freebsd-version utility will attempt to parse /boot/defaults/loader.conf and /boot/loader.conf, looking for definitions of the kernel and bootfile variables, both with a default value of “kernel”. It may however fail to locate the correct kernel if either or both of these variables are defined in a non-standard location, such as in /boot/loader.rc.
- Path to the root of the filesystem in which to look for loader.conf and the kernel.
EXAMPLESTo determine the version of the currently running userland:
To inspect a system being repaired using a live CD:
mount -rt ufs /dev/ada0p2 /mnt env ROOT=/mnt /mnt/bin/freebsd-version -ku
HISTORYThe freebsd-version command appeared in FreeBSD 10.0.
AUTHORSThe freebsd-version utility and this manual page were written by <des@FreeBSD.org>.
|October 5, 2013||FreeBSD|