Date: Sun, 20 Apr 2014 20:40:25 -0400 (GMT-04:00) From: John <aqqa11@earthlink.net> To: FreeBSD questions <freebsd-questions@freebsd.org> Subject: Re: where does uname get version number? Message-ID: <6906853.1398040825953.JavaMail.root@mswamui-backed.atl.sa.earthlink.net>
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-----Original Message----- >From: John <aqqa11@earthlink.net> >Sent: Apr 19, 2014 6:49 PM >To: FreeBSD questions <freebsd-questions@freebsd.org> >Subject: Re: where does uname get version number? > >So the question is back to the beginning: I installed 9.1-RELEASE, then binary upgraded to 9.2-RELEASE using freebsd-update. Now all files I checked are correctly in 9.2-RELEASE-p4. For example: > >1. the kernel contains the new version: > ># strings /boot/kernel/kernel | grep RELEASE|grep 9 >@(#)FreeBSD 9.2-RELEASE-p4 #0: Tue Apr 8 18:08:22 UTC 2014 >FreeBSD 9.2-RELEASE-p4 #0: Tue Apr 8 18:08:22 UTC 2014 >9.2-RELEASE-p4 > >2. /etc/hosts contains 9.2: > ># $FreeBSD: release/9.2.0/etc/hosts 109997 2003-01-28 21:29:23Z dbaker $ > >We have verified that: > >1. I never compiled kernel, and do not have /usr/src and /usr/obj folders now. > >2. the default /etc/profile is unchanged, in particular I never defined UNAME_* vars . > >3. I also tried "unsetenv UNAME_r" > >However, uname somehow shows the wrong version 9.1: > ># uname -a >FreeBSD localhost.localdomain 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012 root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 > >So where does uname get the version number from? Which file(s) might not have been upgraded? Thank you! I found the source code of uname at http://svnweb.freebsd.org/base/release/9.2.0/usr.bin/uname/uname.c?revision=255898&view=markup it appears that "uname -v" does get version number from the environment variable "UNAME_v". However it's beyond me to find out where there variables are obtained - on a stock RELEASE system without /usr/src and /usr/obj.
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