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@@ -1,89 +1,3 @@ # Auto-install OpenBSD on QEMU -This repository hosts a POSIX shell script to auto-install OpenBSD/amd64 6.7 to -copy-on-write disk image using QEMU. The script is intended to run on Linux. If -you already have a running OpenBSD installation, you should consider to use -OpenBSD's own hypervisor [vmm(4)](https://man.openbsd.org/vmm) instead of QEMU -as described in the [OpenBSD FAQ](https://www.openbsd.org/faq/faq16.html) and -in this [blog post](https://eradman.com/posts/autoinstall-openbsd.html). - -The script will: - -* Download and verify the official installation image and file sets. -* Create and serve a TFTP boot environment. -* Create an [autoinstall(8)](https://man.openbsd.org/autoinstall) configuration file including your public ssh key. -* Create and boot a copy-on-write disk image. - -## Prerequisites - -The script depends on the following tools: - -* [QEMU](https://www.qemu.org/) -* [curl](https://curl.haxx.se/) -* Portable [signify](https://github.com/aperezdc/signify) -* [rsync](https://rsync.samba.org/) -* Portable [OpenSSH](https://www.openssh.com/portable.html) -* [socat](http://www.dest-unreach.org/socat/) - -The following command installs these dependencies on Arch Linux: - - sudo pacman -S qemu curl signify rsync openssh socat - -## Usage - -Execute the following command to auto-install OpenBSD/amd64 6.7 to a new disk -image `disk.qcow2` in the current directory. - - ./run - -When prompted, run the following command to serve `./mirror/` at -http://127.0.0.1:8080/: - - python -m http.server --directory ./mirror --bind 127.0.0.1 8080 - -You can override the following environment variable defaults if necessary: - -* `DISK_FILE=disk.qcow2` -* `DISK_SIZE=160G` -* `CPU_COUNT=6` -* `MEMORY_SIZE=4G` - -For example: - - CPU_COUNT=1 ./run - -## Virtual network - -The script creates a virtual network, `10.0.2.0/24`, with the following -addresses: - -* Host at `10.0.2.2` -* Nameserver at `10.0.2.3` -* Guest at `10.0.2.15` - -The script also redirects host host port `2222` to guest port `22` (ssh) and -host port `80` (actually `10.0.2.1` port `80`) to host port `8080`. - -## Secure shell - -Pass the following options to ssh or scp to connect to the guest machine: - - ssh \ - -o "StrictHostKeyChecking no" \ - -o "UserKnownHostsFile /dev/null" \ - -o "Port 2222" \ - puffy@127.0.0.1 - -For example, the following command forwards port `3000` on the host to port -`80` on the guest: - - ssh \ - -o "StrictHostKeyChecking no" \ - -o "UserKnownHostsFile /dev/null" \ - -o "Port 2222" \ - -N \ - -L 127.0.0.1:3000:127.0.0.1:80 \ - puffy@127.0.0.1 - -Press `C-a x` to stop the guest machine. -Press `C-a h` to show other options. +See [blog post](https://www.skreutz.com/posts/autoinstall-openbsd-on-qemu/). |