When I tried to upgrade my FreeBSD system today, I received a last minute Christmas gift from the FreeBSD team. 
#sudo freebsd-update fetch Looking up update.FreeBSD.org mirrors... 4 mirrors found. Fetching metadata signature for 8.2-RELEASE from update4.FreeBSD.org... done. Fetching metadata index... done. Inspecting system... done. Preparing to download files... done. The following files will be added as part of updating to 8.2-RELEASE-p5: /usr/src/lib/libc/gen/libc_dlopen.c
I got the following error:
#sudo freebsd-update install Installing updates...install: ///usr/src/lib/libc/gen/libc_dlopen.c: No such file or directory done.
Initially, I thought the problem was a typo in the freebsd-update profile, so I gave this a try:
sudo cat /var/db/freebsd-update/* | grep libc_dlopen.c
Unfortunately, I couldn’t find anything. So I investigated the problem, and I found that it was caused by the missing source. In a nut shell, if you did not install the FreeBSD with the source (i.e., /usr/src is empty), this problem will show up.
To fix this problem, simply create a dummy directory:
sudo mkdir -p /usr/src/lib/libc/gen
and re-run everything once again, i.e.,
#sudo freebsd-update fetch #sudo freebsd-update install #sudo reboot
After the computer finishes rebooting, verify that the upgrade is done:
# sudo freebsd-update fetch Looking up update.FreeBSD.org mirrors... 4 mirrors found. Fetching metadata signature for 8.2-RELEASE from update2.FreeBSD.org... done. Fetching metadata index... done. Inspecting system... done. Preparing to download files... done. No updates needed to update system to 8.2-RELEASE-p5.
That’s it!
Enjoy this last minute Christmas gift from the FreeBSD team. Merry Christmas!
–Derrick
