APU pfsense Install over Serial. Michael Behnke. PC Engines pfsense install to Kingston mSATA drive. Apu platform; Summary: The PC Engines apu system board is a big step up in performance and capacity from the popular ALIX series. 3 Gigabit Ethernet (Realtek RTL8111E), 1 DB9 serial port (console). Firmware: coreboot open source system BIOS with support for iPXE and USB boot. Ok, seem to access APU from serial now that I installed the pfSense OS as a bootable USB, rather than copying the image file to the MicroSD 8GB card. However, now the pfSense OS isn't booting, so I think this is no longer a PC-Engines issue.
@@ -19,7 +19,7 @@ Note: Some of the steps require downloading software. Whenever possible, verify Pigtail cable I-PEX -> reverse SMA PC Engines [pigsma]( 2 x $1.5 Antenna reverse SMA dual band PC Engines [antsmadb]( 2 x $2.05 Null modem cable DB9-F to DB9-F PC Engines, anywhere [db9cab1]( $1.3 USB to RS-232 DM9-M adapter Sabrent (FTDI) [USB-2920]( $ 10.11 USB to RS-232 DM9-M adapter PC Engines, Sabrent (FTDI) [ usbcom1a]([USB-2920]( $ 8-10 8GB USB Flash Drive Amazon, anywhere [CZ50]( $4.29 Total $202.68 without shipping.
We want to try the UTM SW-Version on the PC Engines apu1c4. We have done an initial installation of the UTM Software 9.203 on a Samsung SSD-harddrive in an other pc. Then we moved the SSD from the other pc to the apu1c4. When we power on the apu1c4 we hear the 5 beeps from the speaker, but serial console on the apu1c4 is not working. Untangle on PC Engines APU2C4 via serial console. 2) Insert the USB in a PC/Mac and edit syslinux.cfg by erasing everything and enter this.
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@@ -32,13 +32,15 @@ Assemble the hardware per the instructions on the PC Engines website. Remember: ## Setup serial console Note that the serial port settings for the APU2 are 115200 baud rate, 8N1 (8 data bits, no parity, 1 stop bit). Connect the APU serial port to another machine. This can be done several ways: 1. Install the USB to serial [ driver](2. Plug the USB end of the USB to serial cable to the Mac 3.
Plug the DB9-M end of the USB to serial cable to one end of the null modem cable 4. Plug the other end of the null modem cable to the APU2 5.
Connect to the APU2 from the terminal: `screen /dev/tty.usbserial 115200` (note: your device might be different, look for devices with `tty` and `serial` in their name) + If you have a serial port, you can connect it directly to the APU with a [ null modem cable](+ You can use a [ USB-to-serial](adapter at your machine, with a [ null modem cable](and its [ driver](+ Or use the [ PCEngines adapter](with a regular USB cable. The serial port settings for the APU2 are 115200 baud rate, 8N1 (8 data bits, no parity, 1 stop bit). Connect from a terminal: `screen /dev/tty.usbserial 115200` Your device might be different; look in `/dev` for devices with `tty` and `serial` in their name, or check dmesg. Power the APU2 off and back on by pulling the plug and plugging it back in, respectively. You should see output on the screen.
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This is a writeup on getting OpenBSD running on PC Engines APU2.
Motivation: I chose OpenBSD because I have a few ideas for building a router that protects IoT-rich networks. OpenBSD's combination of proactive security and a clean networking stack made it possible to quickly implement a proof-of-concept. If anyone's interested in working on such a project, contact me. :)
Note: Some of the steps require downloading software. Whenever possible, verify checksums of such software or better yet, download it from a well-known repository. Remember Reflections on Trusting Trust!
Component | Source | Link | Price |
---|---|---|---|
APU.2C4 system board (GX-412TC quad core / 4GB / 3 Intel GigE / 2 miniPCI express / mSATA / USB / RTC battery) | PC Engines | apu2c4 | $122 |
Enclosure (3 LAN, black, USB) | PC Engines | case1d2blku | $10 |
AC adapter 12V 2A euro plug | PC Engines | ac12veur2 | $4.4 |
SSD M-Sata 16GB MLC, Phison S9 controller | PC Engines | msata16d | $17 |
SD card 4GB pSLC Phison (MLC flash running in SLC mode) | PC Engines, anywhere | sd4b | $6.6 |
Compex WLE200NX 802.11a/b/g/n miniPCI express wireless card | PC Engines | wle200nx | $19 |
Pigtail cable I-PEX -> reverse SMA | PC Engines | pigsma | 2 x $1.5 |
Antenna reverse SMA dual band | PC Engines | antsmadb | 2 x $2.05 |
Null modem cable DB9-F to DB9-F | PC Engines, anywhere | db9cab1 | $1.3 |
USB to RS-232 DM9-M adapter | Sabrent (FTDI) | USB-2920 | $10.11 |
8GB USB Flash Drive | Amazon, anywhere | CZ50 | $4.29 |
Total $202.68 without shipping.
Assemble the hardware per the instructions on the PC Engines website. Remember:
Note that the serial port settings for the APU2 are 115200 baud rate, 8N1 (8 data bits, no parity, 1 stop bit).
screen /dev/tty.usbserial 115200
(note: your device might be different, look for devices with tty
and serial
in their name)Power the APU2 off and back on by pulling the plug and plugging it back in, respectively. You should see output on the screen.
BIOS updates require flashing the ROM. Create a bootable USB flash drive with TinyCore Linux from PC Engines. It includes flashrom
but doesn't include any ROM images you might need. Steps:
4b834077ec5da535b07ab7e17215eb8d64b71dbcfd3f9076d51252a0f7158f3c
) and extract it to get apu2-tinycore6.4.imge939187ebe29a45e6ef5000c1ca0564473495f41a5290797e4b639c340562f46
) and extract it to get apu2_160311.rom. It is required for making wireless networking work and booting from an SD carddiskutil list
, let's assume it's /dev/disk2
) and unmount it (diskutil unmountDisk /dev/disk2
)sudo dd if=apu2-tinycore6.4.img of=/dev/rdisk2 bs=1m
(note the use of rdisk2
- that's the raw device)If the BIOS needs updating - the version displayed during boot is not the latest that's on the PC Engines website - follow these steps:
flashrom
to update the BIOS. The ROM file will be in /media/SYSLINUX
: flashrom -p internal -w /media/SYSLINUX/apu2_160311.rom
amd64/install59.fs
(SHA256 fingerprint), file-system image (not ISO!) from one of the mirrorsdiskutil list
, let's assume it's /dev/disk2
) and unmount it (diskutil unmountDisk /dev/disk2
)sudo dd if=install59.fs of=/dev/rdisk2 bs=1m
(note the use of rdisk2
- that's the raw device)Note: Starting with OpenBSD 6.0, this is done by the installer.
The following settings are required for proper serial console output:
Enter them in the boot>
prompt when booting the installer. Put them in /etc/boot.conf
so they're always in effect.
boot>
prompt, remember the serial console settings (see above)boot>
prompt, press Enter to start the installerThe driver used for wireless networking is athn(4). It might not work properly out of the box. Once OpenBSD is installed, run fw_update
with no arguments. It will figure out which firmware updates are required and will download and install them. When it finishes, reboot
.
These instructions were collected from websites, mailing lists, forums, and whatever I could find.