OpenBSD
Upgrade Guide: 6.2 to 6.3
[FAQ Index] |
[6.1 -> 6.2]
[6.3 -> 6.4]
Upgrades are only supported from one release to the release immediately
following it.
Read through and understand this process before attempting it.
For critical or physically remote machines, test it on an identical,
local system first.
Start by performing the pre-upgrade steps.
Next, boot from the install kernel, bsd.rd:
use bootable install media, or place the 6.3
version of bsd.rd in the root of your filesystem and instruct the boot
loader to boot this kernel.
Once this kernel is booted, choose the (U)pgrade option and follow the
prompts.
Apply the configuration changes and
finish up by upgrading the packages: pkg_add -u.
Alternatively, you can use the manual upgrade process.
You may wish to check the errata page or upgrade
to the stable branch to get any post-release fixes.
Before rebooting into the install kernel
- Get and verify
bsd.rd.
Download the ramdisk kernel and the cryptographically signed checksum file
for your architecture.
bsd.rd
[alpha]
[amd64]
[arm64]
[armv7]
[i386]
[landisk]
[loongson]
[luna88k]
[macppc]
[octeon]
[sparc64]
SHA256.sig
[alpha]
[amd64]
[arm64]
[armv7]
[i386]
[landisk]
[loongson]
[luna88k]
[macppc]
[octeon]
[sparc64]
Verify them using
signify(1):
$ signify -C -p /etc/signify/openbsd-63-base.pub -x SHA256.sig bsd.rd
Signature Verified
bsd.rd: OK
- Spring cleaning in
/usr/share.
Remove all outdated manuals.
Moreover, the relinking of libraries and kernels at boot time now
happens in /usr/share/relink.
The old relinking directory is no longer used and can be removed.
# rm -r /usr/share/man
# rm -r /usr/share/compile
- RFC 7217 style IPv6 addresses enabled by default.
Stateless address autoconfiguration and link local IPv6 addresses
historically embedded the layer 2 (ethernet mac) address in the lower
64 bits of the IPv6 address.
This has various downsides and RFC 7217 specifies an alternative scheme
of how to generate autoconfiguration addresses that are stable between
reboots.
This is enabled per default and IPv6 link local addresses will change
if IPv6 is enabled on an interface.
Furthermore, stateless autoconfiguration IPv6 addresses will change if
autoconfiguration is enabled on an interface.
If you need the old style stateless address calculated from the layer
2 address (i.e. ethernet mac address) put -soii into the
/etc/hostname.if file.
See also
ifconfig(8).
Configuration and syntax changes
ifconfig <if> deletetunnel option deprecated.
The ifconfig(8)
deletetunnel option was replaced with -tunnel.
Adjust your
hostname.if(5)
configuration and scripts accordingly.
- iked(8) and isakmpd(8): ECP group incompatibility.
In the final RFC 5903, the computation for the DH shared secret changed.
The iked(8) and
isakmpd(8)
programs were modified to follow the RFC.
These changes are not backwards compatible, so if you are using ECP groups,
please make sure to upgrade all peers at the same time.
- New default setup for touchpads.
X selects ws(4)
as default driver for touchpads now.
In the setup with ws, touchpad-specific input processing is done by
wsmouse(4).
Touchpad configuration parameters are made available in
wsconsctl(8).
Using the
synaptics(4)
input driver is still possible with a custom
xorg.conf file.
- vmd(8): switch configuration.
vmd(8) no longer
automatically creates an underlying bridge interface for virtual switches
defined in
vm.conf(5).
This will require users to create their bridges ahead of time, e.g.
using
/etc/hostname.bridge0.
This also requires users to modify their
vm.conf(5)
files to add an interface line to the switch definition, for example:
switch "uplink" {
interface bridge0
}
Files to remove
-
Remove libpthread-stubs.
With the integration of the pthread stub functions in libc,
libpthread-stubs is no longer needed in xenocara.
After upgrading base and packages, users may want to remove the old
installed library, either via the sysclean package or by running the
following commands:
# cd /usr/X11R6/lib
# rm libpthread-stubs.a \
libpthread-stubs.so.2.0 \
pkgconfig/pthread-stubs.pc
Special packages
Upgrade without the install kernel
This is NOT the recommended process.
Use the install kernel method if at all possible!
Sometimes, you need to do an upgrade of a machine for which the normal upgrade
process is not possible.
The most common case is a machine in a remote location and there is no easy
access to the system console.
Preparation
- Place install files in a good location.
Make sure you have sufficient space!
Running out of space on a remote upgrade could be...unfortunate.
Note that using softdeps can exaggerate the situation as deleted and
overwritten files do not release their space immediately.
Consider disabling the
softdep mount option in /etc/fstab
and rebooting before undertaking a manual upgrade.
Having at least 500MB free on /usr would be recommended.
- Become root.
While using
doas(1)
before each command is generally a good practice, the command will likely
be broken by the last steps, so you should become root before starting
this process.
It might be good to verify your access to root using a method other than
doas at this point, i.e., direct login or using
su(1).
- Stop and/or disable any appropriate applications.
During this process, all the userland applications will be replaced but
may not be runnable, and strange things may happen as a result.
You may also have issues with DNS resolution during the first reboot, so
PF rules and NFS mounts dependent upon DNS may cause boot-up problems.
There may be other applications which you wish to keep from running
immediately after the upgrade, stop and disable them as well.
- Install new boot blocks.
This should actually be done at the end of any upgrade.
If this has been neglected, then failure to do this now may break serial
console or other things, depending on your platform.
Use
installboot(8), assuming
sd0 is your boot disk:
installboot sd0
Upgrading manually
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[6.3 -> 6.4]
$OpenBSD: upgrade63.html,v 1.16 2019/10/04 10:15:36 fcambus Exp $
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