Forget console. I've been upgrading OpenBSD and Linux systems remotely for ages with just the standard, runtime upgrade procedures. For example, as best I can t

Forget console. I've been upgrading OpenBSD and Linux systems remotely for ages with just the standard, runtime upgrade procedures. For example, as best I can tell my main OpenBSD system has been continuously upgraded since 2012 using the standard unattended[1] upgrade instructions, plus occasional housekeeping to remove unused system files (e.g. old libc versions). Between 2000 and 2012 there were a few changes (e.g. moving among leased and colocated hardware) requiring some reinstalls, but I otherwise followed the same pattern. I don't think I've ever maintained a single Linux instance for that long, but I've definitely upgraded across 2, possibly 3 Ubuntu LTS releases. [1] Which is actually a manual process that requires attention, it just doesn't require console access--you're not rebooting into an installer.