Juneau Linux Users Group

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This script was written because while updating an OpenBSD installation is not really that hard, there is no automated tool such as Debian's apt to do so. Therefore I wrote this script in an attempt to come up with a semi-automatic method of updating an OpenBSD box. There are other scripts available via Google if this one does not meet your needs.

The error checking on this particular script is non-existent, so be sure to check the OpenBSD web site (particularly the upgrade mini-faq) if things don't run smoothly or your kernel build finishes after only a few seconds.
The ability to build an arbitrary port would be useful, but is not included. (I don't use many of the ports.) If you build and install userland, you will need to take a look at customizations you've made to your system such as replacing sendmail with postfix.

The script uses sh instead of csh, as I am more familiar with bash scripting.



#!/bin/sh

##############################################################################

# System Upgrade

# James Zuelow

# Modified 02 September 2004

# Automates source code update & system rebuild for i386 OpenBSD 3.5

# Install /usr/src and /usr/ports from CD No. 3 before updating via cvs.

##############################################################################

updatesource()

{

        export CVSROOT=anoncvs@anoncvs1.usa.openbsd.org:/cvs

        cd /usr/src

        # Update the next line to track the current version:

        cvs up -t -rOPENBSD_3_5 -Pd

        # Comment out the next 2 lines if you are not tracking ports:

        cd /usr/ports

        cvs -t up -rOPENBSD_3_5 -Pd

        mainmenu

}

compilekernel()

{

# Check the upgrade mini-faq if things go wrong.

# If you are upgrading a stock 3.5 kernel the 1st time,

# uncomment the blocks below.

# cd /usr/src/gnu/usr.bin/binutils

#       make -f Makefile.bsd-wrapper cleandir || exit

#       make -f Makefile.bsd-wrapper obj || exit

#       make -f Makefile.bsd-wrapper depend || exit

#       make -f Makefile.bsd-wrapper || exit

#       make -f Makefile.bsd-wrapper install  || exit

        cd /usr/src/sys/arch/i386/conf

        /usr/sbin/config GENERIC

        cd /usr/src/sys/arch/i386/compile/GENERIC

        make clean || exit

        make depend || exit

        make bsd || exit

        mainmenu

}

compileuserland()

{

        # Sample exclusion line:

        # export SKIPDIR="sendmail"

        # The above line ensures make build doesn't clobber postfix

        cd /usr/src

        rm -rf /usr/obj/*

        make obj || exit

        make build || exit

        mainmenu

}

changekernel()

{

# Uses cp instead of mv to make sure that a kernel build failure doesn't

# kill your box.  If you need to, you can boot to the old copy.

        DTE=`date +%y%m%d`

        cd /usr/src/sys/arch/i386/compile/GENERIC

        cp /bsd /bsd.${DTE}

        cp bsd /bsd

        chown root:wheel /bsd

        reboot

}

mergeetc()

{

# Build mergemaster from ports to use this.

        if [ -e /usr/local/sbin/mergemaster ]

        then

                /usr/local/sbin/mergemaster

                mainmenu

        else

                echo "        Not found - please install the mergemaster package."

                read WT

                mainmenu

        fi

}

mainmenu()

{

clear

echo "System update, OpenBSD 3.5"

echo "     Check the OpenBSD upgrade mini-faq if you have any problems"

echo ""

echo "     Please choose an update option:"

echo ""

echo "     1) Update Source              2) Compile Kernel"

echo "     3) Replace Kernel & Reboot    4) Compile Userland"

echo "     5) Merge new /etc files       6) Exit"

echo ""

echo -n "     Option (1-6): "

read UPDT

case $UPDT in

        1)      updatesource;;

        2)      compilekernel;;

        3)      changekernel;;

        4)      compileuserland;;

        5)      mergeetc;;

        6)      exit 0;;

        *)      echo "" && echo "Please enter a number between one and six."

                echo -n "Press enter to continue." && read WT && mainmenu;;

esac

}

#main body

if [ $# == 0 ]

then

        mainmenu

fi

case $1 in

        source)         updatesource;;

        kernel)         compilekernel;;

        userland)       compileuserland;;

        newkernel)      replacekernel;;

        merge)          mergeetc;;

        *)              echo "Usage:"

                        echo "sysupdate [source|kernel|newkernel|userland|merge]"

                        echo ""

                        echo "source     - update /usr/src/ via cvs"

                        echo "kernel     - build a new kernel"

                        echo "newkernel  - install a previously built kernel"

                        echo "userland   - build and install userland from source"

                        echo "merge      - update /etc with new config files"

                        echo ""

                        echo "no options - opens selection menu"

                        echo "";;

esac

exit 2