# OpenBSD Install Guide

This is a quick install guide for OpenBSD 6.8 on BuyVM.

Use your web browser to go to [[https://manage.buyvm.net]]. Use the username and password that was given you.

# Click on the [Power State] button, then [Power Off] the server. Any time new changes to hardware apply (upgrading RAM, CPUs, patches), you must hard power off and then boot the VPS. **WARNING**: Make sure notify your users in advance, then power off your server by running `$ doas shutdown -p now` -- or else you may lose data!\\

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# Click on Settings.

  # Click on Enable for API settings, then click Generate. Make sure to copy these values down for use for [botnow](/Openbsd/botnow). They will allow you to configure rDNS records automatically using scripts.

  # Make sure the hostname matches what you want. It should probably be `<fruit>.ircnow.org`. Click Save.

  # In the KVM settings on the right, change the CPU model to QEMU, Ethernet Driver to VIRTIO, and Hard Disk Driver to VIRTIO. I suspect this hardware to be most stable (but I am not sure).

  # Make sure to click on Save Settings.\\

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# Click on Networking.

  # For IPv4, change the main IP address to use your DDoS filtered IP address. Make sure to save changes. Do not share your non-DDoS filtered IP address with non-teammates# If you do, you can get DDoSed and forced offline. You will have two IPs -- the DDoS filtered IP is what you share with the public, the internal IP can be used as a backdoor to log in.

  # Make sure the Status is set to On for each IP address you have. Configure the rDNS records. Save Changes. **NOTE**: In order for rDNS to apply, you must have properly configured A/AAAA [DNS records](Openbsd/dns). Please read up on [[vhosts](/Openbsd/vhost).\\
  # Make sure the Status is set to On for each IP address you have. Configure the rDNS records. Save Changes. **NOTE**: In order for rDNS to apply, you must have properly configured A/AAAA [DNS records](Openbsd/dns). Please read up on [[vhosts](/Openbsd/vhost).\\

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# Click on IPv6

  # To use IPv6, you must assign IPv6 addresses from the dedicated IPv6 subnet. Click on Assign IPv6 Address, then Assign Multiple IPv6 Addresses.\\

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# You can add hundreds of IPv6 addresses, but you must add them 8 at a time. Click Add IPv6 Addresses.\\

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# Configure the IPv6 addresses:

  # Click on the Status buttons and set each IPv6 address to On.

  # Click on the spinning gear icon to configure rDNS or to delete the IP address.

  # **Remember**: Click Save Changes to apply.

# To use these IP addresses, see [configuring static networking](/Openbsd/Staticnet) on OpenBSD. You will need to record the information about the IP addresses, the subnet, and the default gateway.\\

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# Click on Routed Subnets

  # This will enable you to get a /48 subnet without needing to manually enter IP addresses. You will also be given delegation for the rDNS entries.\\

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# Configure the name servers

  # Set the nexthop IP address to one of your IPv6 addresses

  # Set the delegated nameservers to two of your rDNS nameservers.\\

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# Click on CD-ROM

  # Search for OpenBSD (at the very bottom), then click Mount ISO.\\

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# Alternatively, to get a more recent ISO, while inside CD-ROM, click on Upload ISO.

  # Upload your ISO.\\

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# Click on Volumes

  # Click on the gear icon to Attach To Virtual Server. Make note of the hard disk size so you can partition and format it later.\\

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# Click on Power State at the top right, then Boot. Then, click on Console.

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# Begin installation

  # Error 1: If you see "No bootable device", double check to make sure you have mounted the CD-ROM ISO.\\

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  # Error 2: No O/S. This happens when you are booting from hard disk first (before the CD-ROM ISO can be booted from), and the hard disk doesn't contain an OS. You need to go to Settings, then change the Boot Order to (1) CD-ROM (2) Hard Disk, hard Power off the VPS, then Boot it.\\

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  # Error 3: The operating system has booted from hard disk instead of the ISO. In this case, you will want to log in and reboot using $ `doas shutdown -r now` . Rebooting using software will avoid damaging your files. Do **not** use `CTRL+ALT+DEL`, `Graceful Restart`, `Graceful Shutdown`, `Reset`, or `Power Off` unless absolutely necessary, because this will result in data corruption.

# Follow the [install instructions](/openbsd/install68).\\

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# After installation, go to the web panel and click on Settings. Change the Boot Order to either Hard Disk Only (better) or (1) Hard Disk (2) CD-ROM.