Update OpenBSD.md

docs/OpenBSD.md

@@ -12,9 +12,17 @@ Install OpenBSD over PXE
   For example:
 
   ```
-  wget http://ftp.icm.edu.pl/pub/OpenBSD/5.9/amd64/bsd.rd
-  wget http://ftp.icm.edu.pl/pub/OpenBSD/5.9/amd64/pxeboot
-  ```
+  wget http://ftp.icm.edu.pl/pub/OpenBSD/6.1/amd64/bsd.rd
+  wget http://ftp.icm.edu.pl/pub/OpenBSD/6.1/amd64/pxeboot
+  wget http://ftp.icm.edu.pl/pub/OpenBSD/6.1/amd64/SHA256
+  wget http://ftp.icm.edu.pl/pub/OpenBSD/6.1/amd64/SHA256.sig
+  ```
+  You can verify the signature using `signify`(1):
+  `signify -C -p /etc/signify/openbsd-61-base.pub -x SHA256.sig`
+  You can also verify the SHA256 hash:
+  `sha256 -c f9c2ca96c7fb93d343b4e70ce55ff09fc927f1a0664597170ef408c5a1f398c0 pxeboot`
+  `sha256 -c 257270c76ecd9bcbf2b2093db1ad04483e85909a6207e3c769be176d3c489e7b bsd.rd`
+
   By default, those files should be placed directly in tftp server root
   directory. In our case it's `netboot` directory, which is mounted inside
   container at `/srv/tftp`. They can be also placed in different paths, such as
@@ -44,27 +52,27 @@ Install OpenBSD over PXE
 
   ```
   label open-bsd
-  	menu label ^OpenBSD-5.9
+  	menu label ^OpenBSD-6.1
   	menu default
   	kernel OpenBSD/amd64/pxeboot.0
   ```
-  Path to `bsd.rm` is set in `/etc/boot.conf`, which needs to be created.
-
+
+  Note that it has to be in tftpd root directory, not the directory where bsd
+  files are!
+
+  If you don't want to use DHCP, you can use the following commands in iPXE:
   ```
-  boot tftp:/OpenBSD/amd64/bsd.rd
+  iPXE> ifopen net0
+  iPXE> set net0/ip 192.168.0.100
+  iPXE> set net0/netmask 255.255.255.0
+  iPXE> set net0/gateway 192.168.0.1  
+  iPXE> chain tftp://192.168.0.1/auto_install
   ```
-  Note that it has to be in  tftpd root directory, not the directory where bsd
-  files are!
-
+  You need to adjust IP's and netmask to your own environment.
 3. Boot configuration.
 
-  Bootloader configuration is set through `/etc/boot.conf` file. In our case we
-  need at least to enable serial port communication and set it's speed.
+  OpenBSD bootloader by default loads `bsd` file, so rename `bsd.rd` to `bsd`.
 
-  ```
-  stty com0 115200
-  set tty com0
-  ```
 4. Installation.
 
   Installation process is mostly straightforward. Take a look at the choice of
@@ -76,3 +84,44 @@ Install OpenBSD over PXE
   bsd.mp (multi-processor kernel)
   baseXX.tgz (OpenBSD base system) - essential
   ```
+
+5. In order to use Autoinstall mode, a few more adjustments need to be made.
+
+The binary you set to load in "filename" directive in DHCP server needs to
+point to `pxeboot`. Example:
+
+```
+subnet 192.168.0.0 netmask 255.255.255.0 {
+        option routers 192.168.0.1;
+        range 192.168.0.4 192.168.0.254;
+        filename "pxeboot";
+```        
+You will be asked after booting:
+```
+Could not determine auto mode.
+Response file location? [http://192.168.1.1/install.conf]
+The configuration file for installation is served by HTTP server passed by
+`server-name`, `option tftp-server-name`, or `next-server` directive.
+```
+
+If the location is true, press Enter.
+The file needs to be named `install.conf`. Here's an example:
+```
+System hostname = 3mdeb.dev
+Change the default console to com0 = yes
+Which speed should com0 use = 115200
+Password for root = 3mdeb.dev
+Network interfaces = em0
+IPv4 address for em0 = dhcp
+Setup a user = emdeb
+Password for user = 3mdeb.dev
+What timezone are you in = Europe/Warsaw
+Location of sets = http
+Server = mirror.leaseweb.com
+Use Whole disk MBR, whole disk GPT, OpenBSD area or Edit = W
+```
+
+You need to place it in HTTP root.
+
+You need to connect APU to the em0 Ethernet port (the nearest port to the RS232
+plug) and provide apriopriate routing and DNS resolver.