Lazy for how to upgrade from OpenBSD 5.7 to 5.7-snapshot

(Installation instruction of OpenBSD as XEN-HVM)

Preparations¶

Download 5.7-snapshot versions of install57.iso and SHA256.sig.

Store install57.iso on the dom0

scp the SHA256.sig file into the OpenBSD domU

Restart the OpenBSD HVM-domU with the CD attached from dom0.

Mount CD in OpenBSD

mount_cd9660 /dev/cd0 /mnt/

Validate the CD with signify and the earlier transfered SHA256.sig file

cd /mnt/5.7/<arch>
signify -C -p /etc/signify/openbsd-57-base.pub -x <path to sig file>/SHA256.sig

Upgrade¶

Upgrade the "RAM Disk" kernel

cp /mnt/5.7/<arch>/bsd.rd /

Connect with VNC and reboot and reconnect again with VNC when diconnected.

At the boot> prompt type boot bsd.rd

When bsd.rd has booted into the installer, choose (U)pgrade

When prompted select cd0 as upgrade source

At the end of the upgrade type reboot

Merge changes to /etc¶

Note: you can do this part via ssh (no need for VNC)

After reboot do a sysmerge to upgrade and merge config-files in the /etc/ directory.