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Sysadmin

OpenBSD Worrying RAID

I wanted to move a couple of USB hard drives from one OpenBSD machine to another. They are configured with softraid(4) as RAID 1 (mirrored). When I plugged the drives into the new machine though, nothing happened with softraid. This was pretty worrying.

Both the drives showed in dmesg output so the issue was specifically to do with softraid. The man page for bioctl(8) talks about -c creating a “new” RAID device which sounded a little too destructive. I asked for help in #openbsd and apparently the language in the man page is misleading. The -d flag has recently been updated to say “detach” rather than “delete” to try to address this.

Multicast IPTV

For almost a decade, I’ve been very slowly making progress on a multicast IPTV system. Recently I’ve made a significant leap forward in this project, and I wanted to write a little on the topic so I’ll have something to look at when I pick this up next. I was aspiring to have a useable system by the end of today, but for a couple of reasons, it wasn’t possible.

Matrix Synapse Certificates

I’ve had a need to set up and run a Matrix homeserver and I wanted to try to set it up for general use as well as just for this project.

The one thing I wanted to do that is a little non-standard is to use the “plain” domain for my user ID while hosting the homeserver on a subdomain. In this case I wanted to use “irl.xyz” as the user ID domain, and “syn.irl.xyz” to host the Synapse homeserver.

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