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[website_subgeniuskitty.com] / data / notes / openbsd_on_linode / index.md

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+# Overview #
+
+Linode doesn't offer OpenBSD as an installation choice. These notes describe
+the creation of an OpenBSD VM on Linode using the Linode rescue image to
+bootstrap the OpenBSD installer.
+
+# OpenBSD Installation #
+
+ 1. Create a new linode. The "Nanode 1GB" plan at $5/month is sufficient.
+
+ 2. Under the "Advanced" tab, delete the existing disks and create two new
+    disks, both unformatted raw. The first should be 16 GB, named `root`. The
+    second should be 1 GB, named `install`.
+
+ 3. Under the "Rescue" tab, set `/dev/sda` to the `install` disk and submit.
+    The system should boot into Finnix where you can download and apply the OpenBSD
+    install image. For example:
+
+        root@ttyS0:~# dmesg | grep "sda"
+        [    1.455839] sd 0:0:0:1: [sda] 2097152 512-byte logical blocks: (1.07 GB/1.00)
+        <snip>
+        root@ttyS0:~# wget http://mirrors.syringanetworks.net/pub/OpenBSD/6.5/amd64/install65.fs
+        root@ttyS0:~# dd if=./install65.fs of=/dev/sda
+        922496+0 records in
+        922496+0 records out
+        472317952 bytes (472 MB) copied, 64.5331 s, 7.3 MB/s
+        root@ttyS0:~# shutdown -h now
+
+ 4. Under the "Advanced" tab, delete the existing "configuration" and create a
+    new configuration with the following settings:
+
+        Label: OpenBSD - Install
+        VM Mode: Full virtualization
+        Select a Kernel: Direct disk
+        Run Level: Run Default Level
+        Memory Limit: Do not set any limits on memory usage
+        Block Device Assignment:
+            /dev/sda: boot
+            /dev/sdb: install
+            /dev/sdX: None
+        Root Device: /dev/sdb
+        Filesystem/Boot Helpers: No to all
+
+ 5. Boot the newly created configuration. From the console, perform a normal
+    OpenBSD install using `/dev/sda` as the target disk.
+
+ 6. Under the "Advanced" tab, create a second configuration with the following
+    settings:
+
+        Label: OpenBSD - Normal Operation
+        VM Mode: Full virtualization
+        Select a Kernel: Direct disk
+        Run Level: Run Default Level
+        Memory Limit: Do not set any limits on memory usage
+        Block Device Assignment:
+            /dev/sda: boot
+            /dev/sdX: None
+        Root Device: /dev/sda
+        Filesystem/Boot Helpers: No to all
+
+ 7. Boot the new configuration. You should be able to login to the new system
+    via SSH.