On Wed, Feb 1, 2012 at 8:36 PM, Adam Williamson <awilliam(a)redhat.com> wrote:
On Wed, 2012-02-01 at 20:26 -0500, Tom H wrote:
> [root@localhost ~]# mv /etc/ld.so.conf.d/usrmove.conf .
> [root@localhost ~]# ldconfig
> [root@localhost ~]# ldconfig -p | wc -l
> 825
> [root@localhost ~]# ldconfig -p | grep usr | wc -l
> 11
> [root@localhost ~]# mv usrmove.conf /etc/ld.so.conf.d/
> [root@localhost ~]# ldconfig
> [root@localhost ~]# ldconfig -p | wc -l
> 825
> [root@localhost ~]# ldconfig -p | grep usr | wc -l
> 824
> [root@localhost ~]# ldconfig -p | grep -v usr
> 824 libs found in cache `/etc/ld.so.cache'
> [root@localhost ~]#
>
> Even though ldconfig links to "/usr/lib" by default, adding
"/usr/lib"
> to its conf seems to create direct links to "/usr/lib" rather than via
> the "/lib" symlink.
Ah, it may be to do with the ordering, then - somehow adding it as an
ld.so.conf.d file gives /usr/lib priority over /lib?
You must be right; mentioning one of the two default directories
pushes it up the "priority" list and mentioning both gives a different
result.
[root@localhost ~]# cd /etc/ld.so.conf.d/
[root@localhost ld.so.conf.d]# vi usrmove.conf
[root@localhost ld.so.conf.d]# cat usrmove.conf
/usr/lib
/lib
[root@localhost ld.so.conf.d]# ldconfig
[root@localhost ld.so.conf.d]# ldconfig -p | grep usr | wc -l
824
[root@localhost ld.so.conf.d]# vi usrmove.conf
[root@localhost ld.so.conf.d]# cat usrmove.conf
/lib
/usr/lib
[root@localhost ld.so.conf.d]# ldconfig
[root@localhost ld.so.conf.d]# ldconfig -p | grep usr | wc -l
11
[root@localhost ld.so.conf.d]#