Tested on OpenBSD 6.3, 6.4

Upgrading OpenBSD 6.4 to 6.5 on Vultr

First of all we take a backup of our data. In this case, I rolled out a snapshot of my VPS.

Then refer to the Pre-upgrade steps webpage and read what you need to do before start.

Get the ramdisk kernel and put it on /

# PKG_PATH='http://fastly.cdn.openbsd.org/pub/OpenBSD'

# ftp -V $PKG_PATH/6.5/amd64/bsd.rd

# ftp -V $PKG_PATH/6.5/amd64/SHA256.sig

# signify -C -p /etc/signify/openbsd-65-base.pub -x SHA256.sig bsd.rd

# cp bsd.rd /

Now, boot your VPS from the install kernel. Use the webconsole. You know how to boot from a different kernel, right?

Your system will start the install assistant but this time you will select (U) to upgrade and the process will be very similar to a new install. Your system will now reboot.

Then go, read and apply all the Configuration changes that may affect your current system. Remove obsolete files, review the dmesg -s output and correct any failures.

Finally, update all your packages with pkg_add -u and re-run sysmerge in order to fix any changed files.

Enyoy!