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Note: Upgrades are only supported from one release to the release immediately following it. Do not skip releases.
It is highly recommended that you read through and fully understand this process before attempting it. If you are doing it on a critical or physically remote machine, it is recommended that you test this process on an identical, local system to verify its success before attempting on a critical or remote computer.
Upgrading is a convenient way to bring your OpenBSD system up to the most recent version. However, the results are not intended to precisely match the results of a wipe-and-reload installation. Old library files in particular are not removed in the upgrade process, as they may be required by older applications that may or may not be upgraded at this time. If you REALLY wish to get rid of all these old files, you would probably be better off reinstalling from scratch.
To quickly remove all packages from your system:
After the upgrade, install the new versions of these applications.pkg_delete -q /var/db/pkg/*
Note that, with OpenBSD 3.8, the pkg tools now support in-place updating
pkg_add -r. This has been checked to work with most
packages, in particular with the CD packages available in 3.6 or 3.7.
Some important points apply:
pkg_add -rdoes not do global updates, but needs to be told which packages to update. A new option
pkg_add -ucan be used to find out the exact list of packages to pass to
pkg_add -r -F update -F updatedepends -q list_of_new_pkgsshould work in most cases.
tx(4) driver is now epic(4). If your system has a tx(4) based card (such as SMC EtherPower II 10/100 cards), it will be supported by a different driver on OpenBSD 3.8 than it was on 3.7. BEFORE doing the upgrade, copy your /etc/hostname.tx* file(s) to corresponding /etc/hostname.epic* files, otherwise you will not have functioning network during and after the upgrade process.
Sometimes, one needs to do an upgrade of a machine when one can't easily use the normal upgrade process. One can usually do this by carefully following a process similar to a source-based upgrade:
Note the extra steps for copying over the primary kernel: those are done to ensure that there is always a valid copy of the kernel on the disk that the system can boot from should there be a really badly timed power outage or system crash.cd /path rm /obsd ; ln /bsd /obsd && cp bsd /nbsd && mv /nbsd /bsd cp bsd.rd bsd.mp /
before the next step.cd / tar xzpf /path/base38.tgz "*etc/firmware/*"
Note: not all file sets will need to be installed for all applications, however if you installed a file set originally, you should certainly upgrade it with the new file set now.cd / tar xzpf /path/base38.tgz tar xzpf /path/comp38.tgz tar xzpf /path/game38.tgz tar xzpf /path/man38.tgz tar xzpf /path/misc38.tgz tar xzpf /path/xbase38.tgz tar xzpf /path/xfont38.tgz tar xzpf /path/xserv38.tgz tar xzpf /path/xshare38.tgz
Note: the files in /etc are handled separately below, so etc38.tgz and xetc38.tgz are NOT unpacked here.
cd /dev ./MAKEDEV all
Nov 1 12:47:05 puffy sm-mta: filesys_update failed: No such file or directory, fs=., avail=-1, blocksize=380204These messages can be safely ignored, or you may wish to halt sendmail(8) during the upgrade process.
This step will add both the new user and its corresponding group. Your environment may allow you to copy/paste those commands.useradd -u86 -g=uid -c"HostAP Daemon" -d/var/empty -s/sbin/nologin _hostapd
Files that can probably be copied from etc38.tgz "as is":cd /tmp tar xzpf /path/etc38.tgz
Note that it IS possible to locally modify these files, if this has been done, manual merging will be needed. Here are copy/paste lines for copying these files, assuming you unpacked etc38.tgz in the above recommended place:hostapd.conf netstart pf.os rc services mtree/*
cd /tmp/etc cp hostapd.conf netstart pf.os rc services /etc cp mtree/* /etc/mtree/
Files that must be manually merged, respecting any local changes made to them, if they were modified from the default, otherwise, just copy them over, too:
The changes to these files are in this patch file. You can attempt to use this by executing the following as root:ftpusers inetd.conf login.conf rc.conf sysctl.conf syslog.conf mail/aliases
This will test the patch to see how well it will apply to YOUR system, to actually apply it, leave off the "-C" option. Note that it is likely that if you have customized files or not kept them closely updated, or are upgrading from an snapshot of 3.7, they may not accept the patch cleanly. In those cases, you will need to manually apply the changes. Please test this process before relying on it for a machine you can not easily get to.cd / patch -C -p0 <upgrade38.patch
Note that since the /etc/mail/aliases file has been changed, you need to run newaliases(8) to have them take effect.
The following files have had changes which should be looked at, but it is unlikely they should be directly copied or merged (i.e., if you are using pf.conf, look at the suggested change of strategy, and decide if it is appropriate for your use).
Finally, use mtree(8) to create any new directories:pf.conf spamd.conf /root/.profile
mtree -qdef /etc/mtree/4.4BSD.dist -p / -u
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