Intro Let’s assume you have a Mikrotik Router which got a Mgmt Interface with IP: ‘192.168.88.1/24’ and DHCP Server enabled. You wann Access the Router via HTTP/HTTPS while offering Internet Services for the Mikrotik Router. You have an APU and OpenBSD running. What do you do ?
Setup 2 NIC’s em0: dhcp client, default route, rdomain 0 em3: dhcp client, rdomain 3 Interfaces Interface em0
cat << 'EOF' > /etc/hostname.em0 # Public Internet inet autoconf inet6 autoconf EOF Interface em3
intro as we all know, the apu’s from pcengines are eol. but it’s worth to bring the existing ones to the latest firmware. if you have openbsd running on your boxes, you can upgrade it with like this:
add packages doas pkg_add -i flashrom pciutils set hostname based on apu version and mac of em0
type=$(dmesg |grep ^bios0: |tail -1 |sed 's/.*gines //') mac=$(ifconfig em0 |awk '/lladdr/ {print $2}' |awk -F':' '{printf "%s-%s-%s\n",$4, $5, $6}') echo "${type}-${mac}" |tee /etc/myname; hostname $(cat /etc/myname) sample
debian on apu boot
menu -> tab
-> debian-installer/i386/linux vga=788 initrd=debian-installer/i386/initrd.gz — console=ttyS0,115200
enter
space
:)
english
country switzerland
nic0
hostname apu005
domain planet
mirror ch -> ftp.ch.debian.org
root password
Partitioning: entire Disk & LVM
Separate /home /var /tmp
survey no
soft: standard system utilities & ssh server
grub yes
braucht ca. 30min !
automated https://www.debian.org/releases/stable/amd64/apbs02.en.html https://www.debian.org/releases/buster/example-preseed.txt
Packages apt-get -y install net-tools git htop Reboot geht 40 Sekunden Any Comments ?
How to Access APU “B” from APU “A” via Serial Console (USB to Serial Device) APU “A” Connect USBtoSerial Adapter
Connect to Serial Console on APU “B”
APU “B” /etc/ttys tty00 "/usr/libexec/getty std.115200" vt220 on secure APU “A” cu -s 115200 -l /dev/tty00 cu -s 115200 -l /dev/cuaU0 (8 Port USB2Serial Device) -> you have now Console Access to APU “B”
Hardware https://www.amazon.de/LogiLink-AU0033-USB-Adapter-Serial/dp/B00BBXHOAY Any Comments ? sha256: 28cee1e19429893ed3a288609d580ce28305a3c80961771d3a495403af3cf3c5
How much Disk is used with Default Partitioning puffy66# df -h Filesystem Size Used Avail Capacity Mounted on /dev/sd0a 1005M 96.1M 858M 10% / /dev/sd0k 9.6G 2.0K 9.1G 0% /home /dev/sd0d 1.8G 12.0K 1.7G 0% /tmp /dev/sd0f 2.5G 955M 1.4G 39% /usr /dev/sd0g 1005M 202M 752M 21% /usr/X11R6 /dev/sd0h 4.2G 218K 3.9G 0% /usr/local /dev/sd0j 5.8G 2.0K 5.5G 0% /usr/obj /dev/sd0i 1.7G 2.0K 1.6G 0% /usr/src /dev/sd0e 2.8G 5.9M 2.7G 0% /var Example with 32 GB puffy66# df -h Filesystem Size Used Avail Capacity Mounted on /dev/sd0a 3.