In the previous article, we took a look at the built-in
utilities that can be used to manage the FreeBSD ports collection. In this article, I'd like to continue in that vein. Let's take a look at
portupgrade, a feature-rich port designed to help you get the most out of the ports collection.
Like any other port, you install
cding into its directory and issuing a
% cd /usr/ports/sysutils/portupgrade % make install clean
The build will install over a dozen useful utilities. Let's take a trick from the last article and see which manpages, and hence, which utilities, were installed:
% pkg_info -xL portupgrade | grep man /usr/local/man/man1/pkg_deinstall.1.gz /usr/local/man/man1/pkg_fetch.1.gz /usr/local/man/man1/pkg_glob.1.gz /usr/local/man/man1/pkg_sort.1.gz /usr/local/man/man1/pkgdb.1.gz /usr/local/man/man1/portcvsweb.1.gz /usr/local/man/man1/portsclean.1.gz /usr/local/man/man1/portsdb.1.gz /usr/local/man/man1/portupgrade.1.gz /usr/local/man/man1/portversion.1.gz /usr/local/man/man5/pkgtools.conf.5.gz /usr/local/man//man1/pkg_which.1.gz /usr/local/man//man1/portinstall.1.gz /usr/local/man//man1/ports_glob.1.gz
It is time well spent to skim through those manpages. You'll get an idea of the power and the flexibility of the ports collection and will uncover tips and tricks you've never thought of. However, don't be dismayed if you feel a bit overwhelmed by the amount of available information. In the next few articles, I'll walk you through some concrete examples to get you started in using these utilities effectively.
First, let's review the ports structure, where it's installed on your system, and how you can keep it up to date.
When you installed FreeBSD and chose to install the ports collection,
/usr/ports and its files and subdirectories were created for you.
ls /usr/ports, you'll see that it contains subdirectories
that logically divide the ports collection. For example, there are
subdirectories for mail, www, and
databases. Each subdirectory contains subdirectories for
applicable applications, so www has subdirectories for
mozilla and lynx. Each of those subdirectories
contains the information needed in order to install that particular
application. For example:
$ ls -F /usr/ports/www/mozilla ./ Makefile distinfo pkg-descr pkg-message ../ README.html files/ pkg-descr.gtk2
We were actually gathering information from the Makefile, pkg-descr, and pkg-message files with some of the utilities and switches we covered in the last article.
The ports collection is constantly being updated. New ports are added regularly, usually on a daily basis. If you're the curious type and like to see a layout of which ports were added when, you'll find FreshPorts an invaluable resource.
It's great to have such a dynamic ports collection, but it does mean that
your ports tree, the /usr/ports directory structure, can quickly
become out of date. To keep in sync with the changes and ensure that you always
have the ability to build any available port, use
cvsup often. If you're not using
cvsup yet, you really do want to read through Using CVSup before giving it a go. The handbook is definitely the best place to get the proper understanding of the entire
cvsup process. Once you're ready:
% cd /usr/ports/net/cvsup-without-gui % make install clean
cvsup can be used to keep both your operating system and your
ports collection up to date. If you're only interested in keeping your ports
tree in sync, a file similar to this will do it:
% more /root/cvs-supfile *default host=cvsup.ca.freebsd.org *default base=/usr/local/etc/cvsup *default prefix=/usr *default release=cvs delete use-rel-suffix compress ports-all tag=.
The file can be invoked with this command as the superuser:
% cvsup -g -L 2 ~/cvs-supfile
If that file or that command doesn't make sense to you, read the section of
the handbook I referred to above. Also note that the
=. in the
ports-all line is important, so double-check that your file has
cvsup command will download all of the latest bits of the
ports collection and add them to your ports tree. This is the type of command
that benefits from being run on a daily basis, so you might wish to add it as a
cvsup process also updates a file called
/usr/ports/INDEX. This file contains a list of all of the ports in
your ports tree. To see how up to date your ports tree is, use this
$ ls -l /usr/ports/INDEX -rw-r--r-- 1 root wheel 3678738 May 17 17:04 INDEX
That particular machine was installed on May 17 and I haven't kept its ports
tree up to date. If I compare that system to my main machine, which is
$ ls -l /usr/ports/INDEX -rw-r--r-- 1 root wheel 3912366 Aug 17 08:50 INDEX
you'll see that the size of the file, and thus the number of port entries, has grown considerably in that three-month period.
Okay, we're finally ready for
portupgrade and its suite of
utilities. After each
cvsup, run this command:
% portsdb -Uu
The first time you use this command, a database called INDEX.db
will be created in /usr/ports. This database will be updated every
time you repeat that
portsdb command after a fresh
cvsup. If you use the
file utility, you'll see that
you won't be able to access the contents of INDEX.db, since it is
not an ASCII text file:
$ file /usr/ports/INDEX.db /usr/ports/INDEX.db: Berkeley DB 1.85/1.86 (Btree, version 3, native byte-order)
However, several of the
portupgrade utilities will use this
refers to a type of database algorithm that is designed to quickly search
through a large amount of data. This is ideal for the ports collection —
we'll find that some of the
portupgrade utilities are faster and
more efficient than the built-in utilities we saw in the last article, because
You'll have to be patient, as
portsdb takes a while to run. Once
it is finished, you're ready to use
portversion to see if any of
your installed ports need upgrading. Remember this command?
% portversion -l "<"
If you receive any output, your next step is to upgrade those out-of-date
ports. Not surprisingly, we'll use
portupgrade, which is also
In its simplest form,
portupgrade -a will upgrade all
-a) of your out-of-date ports. However, over time you may end up
with ports that refuse to upgrade. This seeming anomaly is not a limitation of
portupgrade, but rather points to the reality of dependencies.
A port has two types of dependencies. The first is called a build dependency
and refers to any other ports that need to be installed before this port will
successfully install. The second type of dependency refers to other ports that
depend upon the particular port you wish to upgrade. You may remember from the
last article that
pkg_delete wouldn't let you uninstall an
application if other applications depended upon it.
If you just upgrade an application but don't check to see if its
dependencies also need upgrading, you'll eventually end up with applications
that refuse to upgrade. To prevent this from happening, use the two recursive
portupgrade, like so:
% portupgrade -arR
-R will check the build dependencies and the
-r will check the applications that depend upon the port being
upgraded. This will prevent your system from having outdated dependencies and
Occasionally, when you use
portupgrade or one of its utilities,
you'll see a message asking you to run
pkgdb -F. As you may have
guessed from the name, this utility updates a package database. That database
is found at /var/db/pkg/pkgdb.db. Again, this database uses a
Btree to optimize search time.
If you're ever asked to run
pkgdb -F, do it. However, don't
interrupt this command, or you'll end up with an inconsistent database. If
you're ever in that unfortunate situation, this command will fix the
% pkgdb -fu
That's a pretty easy switch combo to remember, as similar thoughts will probably be running through your head at the time.
-F will interactively fix the
database. This means that
pkgdb will pause to ask you what you
would like it to do before doing it. Michael Lucas wrote an article explaining how to respond. However, if you find it intimidating coming up with the correct responses to
pkgdb's enquiries, use
-fu instead, and it will quietly do what it thinks
is best. If you're really paranoid, an alternative is
pkgdb to only fix the discrepancies that can be fixed
This all sounds scarier than it really is. It's very rare that you'll ever
be asked to run
pkgdb is usually used for
other purposes, which is why it's also called
pkgdb) can be used to find out to which
application a file belongs. Here's a simple example showing the difference
between the built-in
which command and
$ which pkgdb /usr/local/sbin/pkgdb
which is used to find the path to an application.
pkg_which will tell me to which port the specified application
$ pkg_which pkgdb portupgrade-20030723
This command is equivalent to that last
$ pkgdb pkgdb portupgrade-20030723
Here's another example. Let's say you're poking about
/usr/local, the directory structure containing the files used by
installed applications. You find a whole bunch of files and don't have a clue
where they came from or to which application they belong. Here's a job for
pkg_which. Take a look at this example snippet from my system:
$ ls /usr/local/bin | grep yaf tryaffix* yaf-cdda* yaf-mpgplay* yaf-splay* yaf-tplay* yaf-vorbis* yaf-yuv*
If you're like me, those files hold absolutely no meaning to you. Let's see to which applications they belong:
$ pkg_which *yaf* ispell-3.2.06_3 kdemultimedia-3.1.3 kdemultimedia-3.1.3 kdemultimedia-3.1.3 kdemultimedia-3.1.3 kdemultimedia-3.1.3 kdemultimedia-3.1.3
pkg_which contains a few useful switches. One is the
-o, or origin, switch. Say you can't remember where in the ports
kdemultimedia-3.1.3 came from. Try this:
$ pkg_which -o kdemultimedia-3.1.3 multimedia/kdemultimedia3
The output indicates that the name of the subdirectory from which that application was built is /usr/ports/multimedia/kdemultimedia3.
-v switch can be useful, as well. If I wish to know which
kde applications I currently have installed:
$ pkg_which -v kde* kde-config: kdelibs-3.1.3 kdebugdialog: kdebase-3.1.3 kded: kdelibs-3.1.3 kdeeject: kdebase-3.1.3 kdeinit: kdelibs-3.1.3 kdeinit_shutdown: kdelibs-3.1.3 kdeinit_wrapper: kdelibs-3.1.3 kdepasswd: kdeutils-3.1.3 kdeprintfax: kdebase-3.1.3 kdesktop: kdebase-3.1.3 kdesktop_lock: kdebase-3.1.3 kdessh: kdeutils-3.1.3 kdesu: kdebase-3.1.3 kdesu_stub: kdelibs-3.1.3 kdesud: kdebase-3.1.3 kdevdlg2ui: kdevelop-2.1.5 kdevelop: kdevelop-2.1.5
That output is pretty informative. Each line shows the name of an
application, followed by a
:, followed by the name of the port
that installed that application. By the way, it looks like this machine is
running KDE version 3.1.3.
Before going further, let's summarize the steps you can take to keep your installed software up to date:
cvsupto sync the ports tree.
portsdbto update INDEX.db.
portversionto determine which applications need upgrading.
portupgradeto upgrade those applications.
We've already seen that
portupgrade -arR will properly upgrade
all out-of-date applications. However,
portupgrade comes with
several switches to let you pick and choose which applications to upgrade and
how to do it.
One option that is useful if you don't have a constant Internet connection
-F. Typically, when you upgrade,
go out on the Internet as it needs a file, then spend the time building that
file. If you're doing a large upgrade such as KDE, it may need to go on the
Internet every so often over a period of hours.
This command will go out on the Internet and retrieve all of the files needed to upgrade your ports, but won't install anything:
$ portupgrade -aFrR
Once you've downloaded the necessary files, you can disconnect from the
Internet and use
portupgrade -arR as usual.
Another available switch is
-n. This switch simply tells you
portupgrade would do without actually doing it. This is very
useful if you are the nervous or the paranoid type and want to know ahead of
time what is going to happen to your installed software.
Here's an example output:
$ portupgrade -anrR ---> Session started at: Sun, 17 Aug 2003 22:06:00 -0400 <a page of output snipped> ---> Reporting the results (+:done / -:ignored / *:skipped / !:failed) - lang/ruby16 (ruby-126.96.36.1993.04.19) - net/cvsup-without-gui (cvsup-without-gui-16.1h) + lang/ruby16-shim-ruby18 (ruby-shim-ruby18-1.8.0.p2.2003.04.19) + databases/ruby-bdb1 (ruby-bdb1-0.1.9) - sysutils/portupgrade (portupgrade-20030723) - www/lynx (lynx-188.8.131.52d) ---> Session ended at: Sun, 17 Aug 2003 22:06:02 -0400 (consumed 00:00:02)
Let's take a look at that output.
went through every installed port on the system, then put its results into a
report. Each line in the report shows the port's origin, the currently
installed version, and a symbol indicating whether or not it needs to be
upgraded. This particular report shows that two ports need upgrading. They are
the ones on line that begin with a
+. If I compare this report to
portversion, I'll see similar results, written in a different
$ portversion -l "<" ruby-bdb1 ruby-shim-ruby18
If you're cautious about what gets upgraded on your system, you might also
-i, or interactive, switch. Add it to your
portupgrade switches and
portupgrade will pause for
your input before upgrading an application or any of its dependencies. A pause
will look like this:
---> Upgrading 'ruby-bdb1-0.1.9' to 'ruby-bdb1-0.2.1' (databases/ruby/bdb1) OK? [yes]
Notice the default response of yes in the square brackets. That means if you
press enter, you are saying yes. If you decide you'd rather not upgrade this
port, type in the word
The last switch I'd like to cover is the
l, or log, switch. This
switch is invaluable if you're ever in the situation where a port refuses to
install and you need to send the output of the failed install to someone else.
Here, I'll upgrade one specified port and send the output to a file called
$ portupgrade -rR ruby-shim-ruby18 -l logfile
You probably don't want to use the
l switch with the
a switch, especially if you have a lot of ports that need
upgrading. No one is going to want to wade through a log file that large!
In the next article, I want to discuss uninstalling ports and cleaning out files that are no longer in use by any ports. We should also have time to take a look at customizing pkgtools.conf.
Dru Lavigne is a network and systems administrator, IT instructor, author and international speaker. She has over a decade of experience administering and teaching Netware, Microsoft, Cisco, Checkpoint, SCO, Solaris, Linux, and BSD systems. A prolific author, she pens the popular FreeBSD Basics column for O'Reilly and is author of BSD Hacks and The Best of FreeBSD Basics.
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