jfc'log

********* basic installation ********

From: https://fedoraproject.org/wiki/Raspberry_Pi
fdisk /dev/mmcblk0
unmount and reinsert
looking for the images:
https://dl.fedoraproject.org/pub/fedora/linux/releases/24/Spins/armhfp/images/
There are a bunch of them...
https://dl.fedoraproject.org/pub/fedora/linux/releases/24/Server/armhfp/images/
Only one I have picked this one.
losetup --partscan --find --show /home/jfclere/Downloads/Fedora-Server-armhfp-24-1.2-sda.raw /dev/loop0
mount -r /dev/loop0p3 /tmp/img/
mkfs.vfat /dev/mmcblk0p1
mkswap /dev/mmcblk0p2
mkfs.ext4 /dev/mmcblk0p3
mkdir /tmp/rpi/
mount /dev/mmcblk0p3 /tmp/rpi/
mkdir /tmp/rpi/boot/
mount /dev/mmcblk0p1 /tmp/rpi/boot/
cp -rpv /tmp/img/* /tmp/rpi/
sync (takes ages)
losetup -d /dev/loop0
[root@jfcpc NOTES]# blkid | grep mmcblk0
/dev/mmcblk0: PTTYPE="dos"
/dev/mmcblk0p1: SEC_TYPE="msdos" UUID="DB85-3C4A" TYPE="vfat"
/dev/mmcblk0p2: UUID="5f07dbe9-2619-481e-b0b3-5f37a7f011bf" TYPE="swap"
/dev/mmcblk0p3: UUID="8df2bd5c-4692-4f80-96ec-da2e9697a713" TYPE="ext4"
edit and ajust /tmp/rpi/etc/fstab
/tmp/rpi/boot/cmdline.txt Add
"dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p3 rootfstype=ext4 elevator=deadline rootwait"
https://www.raspberrypi.org/documentation/configuration/config-txt.md (configuration stuff).
/tmp/rpi/boot/config.txt (do we need something?...) empty for the moment...
copy the boot and modules
download the firmware:
https://github.com/raspberrypi/firmware
what is: https://github.com/raspberrypi/firmware/archive/master.zip
it is like https://github.com/modcluster/mod_cluster/archive/master.zip (just a zip repo).
dowload and unzip
So https://github.com/raspberrypi/firmware/tree/master/boot
[root@jfcpc NOTES]# cp -r /home/jfclere/Downloads/firmware-master/boot/* /tmp/rpi/boot/
So https://github.com/raspberrypi/firmware/tree/master/modules (for + and -v7+ no idea how it is choosen)
Once running doing more /proc/cpuinfo:
+++
processor : 0
model name : ARMv7 Processor rev 4 (v7l)
+++
guessing we use the -v7+ ;-)
[root@jfcpc NOTES]# cp -r /home/jfclere/Downloads/firmware-master/modules/* /tmp/rpi/lib/modules/
sync
umount /tmp/rpi/boot/
umount /tmp/rpi/
network: (trying to check it)...
In fact the fedora24 use systemd
/tmp/rpi/etc/systemd/ (there something run at the first boot).
/tmp/rpi/etc/systemd/system/default.target -> /lib/systemd/system/multi-user.target
/tmp/rpi/lib/systemd/system/systemd-firstboot.service ?
and it run /usr/bin/systemd-firstboot --prompt-locale --prompt-timezone --prompt-root-password
+++
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/bin/systemd-firstboot --prompt-locale --prompt-timezone --prompt-root-password
+++
For the curious:
+++
[jfclere@jfcpc ~]$ rpm -qf /usr/bin/systemd-firstboot
systemd-229-13.fc24.x86_64
+++
--locale=en_US.UTF-8
--timezone=Europe/Paris
--root-password=Changeit2016
+++
nmap -sn 192.168.1.0/24
found the PI:
+++
Nmap scan report for pc-151.home (192.168.1.111)
Host is up (0.047s latency).
MAC Address: B8:27:EB:C1:44:41 (Raspberry Pi Foundation)
+++
scanning it:
+++
[root@jfcpc Downloads]# nmap 192.168.1.111
Starting Nmap 7.12 ( https://nmap.org ) at 2016-09-07 22:15 CEST
Nmap scan report for pc-151.home (192.168.1.111)
Host is up (0.0044s latency).
Not shown: 998 filtered ports
PORT STATE SERVICE
22/tcp open ssh
9090/tcp open zeus-admin
MAC Address: B8:27:EB:C1:44:41 (Raspberry Pi Foundation)
Nmap done: 1 IP address (1 host up) scanned in 4.60 seconds
+++
Some how the password stuff failed... The stuff still asks :-(
copy my fedora laptop password that helps...
+++
[root@pc-151 ~]# ps -ef | grep tty1
root 343 1 0 18:23 tty1 00:00:00 /bin/bash /usr/libexec/initial-setup/run-initial-setup
root 348 343 12 18:23 tty1 00:00:23 /usr/bin/python3 /usr/libexec/initial-setup/initial-setup-text --no-stdout-log
root 720 696 0 18:26 pts/0 00:00:00 grep --color=auto tty1
+++
In it:
/bin/systemctl disable initial-setup.service (so it remove itself).
and it is a python script...
trying... mount
/dev/mmcblk0p3 on /run/media/jfclere/a440011a-a5ea-4eb7-ae01-95c8cd981673
[root@jfcpc Downloads]# grep ENCRYPT_METHOD /tmp/img/etc/login.defs
ENCRYPT_METHOD SHA512
echo -n root:Changeit2016 | chpasswd -c SHA512 -R /run/media/jfclere/a440011a-a5ea-4eb7-ae01-95c8cd981673 ?
selinux problems :-( and doesn't work.
echo -n root:Changeit2016 | chpasswd -c SHA512 in PI works...
setting timezone:
ls -lt /usr/share/zoneinfo/Europe/Zurich
rm /etc/localtime
ln -s /usr/share/zoneinfo/Europe/Zurich /etc/localtime
easy :D
Done forget to remove the base fedora kernel components (yum might get funny overrwise)...
dnf remove kernel kernel-core kernel-modules

************** configure wifi *************

The goal is to get a sort of captive portal to run an easy demo, the raspberry is acting as an AP and dhcp server and name server
+++
[root@pc-111 ~]# nmcli device status
DEVICE TYPE STATE CONNECTION
eth0 ethernet connected eth0
lo loopback unmanaged --
+++
no wifi.
https://fedoraproject.org/wiki/Raspberry_Pi
$ cd /lib/firmware/brcm/
$ curl -O https://raw.githubusercontent.com/RPi-Distro/firmware-nonfree/master/brcm80211/brcm/brcmfmac43430-sdio.bin
$ curl -O https://raw.githubusercontent.com/RPi-Distro/firmware-nonfree/master/brcm80211/brcm/brcmfmac43430-sdio.txt
reboot?
iw list
+++
Supported interface modes:
* IBSS
* managed
* AP
+++
it can do AP cool...
dnf install NetworkManager-tui NetworkManager-wifi
nmtui
SSID=PI
Mode <Access Point>
Channel <Automatic>
Security <None>
Addresses 10.0.0.201/24
[X] Never use this network for default route
[X] Require IPv4 addressing for this connection
[X] Automatically connect
from https://fedoraproject.org/wiki/Raspberry_Pi
From the laptop:
+++
wlp4s0 IEEE 802.11 ESSID:"PI"
Mode:Managed Frequency:2.412 GHz Access Point: B8:27:EB:94:11:14
+++
in PI:
++++
wlan0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether b8:27:eb:94:11:14 txqueuelen 1000 (Ethernet)
+++
hm laptop doesn't get IP?
try dhcp (server?) 10.0.0.0 (give 10.0.0.201 to the PI)
Look to /etc/dhcp/dhcpd.conf
The important:
subnet 10.0.0.0 netmask 255.255.255.0 {
so it listens on 10.0.0.201
option domain-name "mysrv.world";
option domain-name-servers 10.0.0.201;
so the name are resolved by the bind of PI.
option routers 10.0.0.201
so it is the routers for the interface (we can use the PI as router!!!).
Looks nearly OK...
+++
Listening on LPF/wlan0/b8:27:eb:94:11:14/10.0.0.0/24
Sending on LPF/wlan0/b8:27:eb:94:11:14/10.0.0.0/24
+++
ifconfig on the laptop:
+++
wlp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.200 netmask 255.255.255.0 broadcast 10.0.0.255
+++
nmap -sn 10.0.0.0/24 (it finds the PI)
+++
[root@jfcpc APACHE-2.4.x]# nmap -sn 10.0.0.0/24
Starting Nmap 7.12 ( https://nmap.org ) at 2016-09-14 23:41 CEST
Nmap scan report for 10.0.0.201
Host is up (0.014s latency).
MAC Address: B8:27:EB:94:11:14 (Raspberry Pi Foundation)
Nmap scan report for 10.0.0.200
Host is up.
Nmap done: 256 IP addresses (2 hosts up) scanned in 32.09 seconds
+++
easy... 192.168.1.109 (connected).
to find the address:
nmap -sn 192.168.1.0/24
(doesn't help... well run it as root = better...)
+++
Nmap scan report for pc-111.home (192.168.1.108)
Host is up (0.0067s latency).
MAC Address: B8:27:EB:7A:A6:98 (Raspberry Pi Foundation)
Nmap scan report for pc-111.home (192.168.1.109)
Host is up (0.0067s latency).
+++
name server: (based on http://serverfault.com/questions/396958/configure-dns-server-to-return-same-ip-for-all-domains)
yum install bind
/etc/named.conf
listen-on port 53 { 10.0.0.201; };
allow-query { 10.0.0.0/24; };
recursion no;
zone "." IN {
type master;
file "/etc/bind/db.fakeroot";
};
And in /etc/bind/db.fakeroot:
+++
@ IN SOA ns.domain.com. hostmaster.domain.com. ( 1 3h 1h 1w 1d )
IN NS 10.0.0.201
* IN A 10.0.0.201
+++
Don't forget the firewall on the PI:
firewall-cmd --permanent --zone=FedoraServer --add-port=53/tcp
firewall-cmd --permanent --zone=FedoraServer --add-port=53/udp
firewall-cmd --reload

********* Getting tomcat running *********

yum install java should be ready for tomcat).
yum install java maven
git clone https://github.com/jfclere/tomcatPI
cd tomcatPI/demo
java -jar ./target/demo-1.0-SNAPSHOT-jar-with-dependencies.jar
Don't forget the firewall (again).
firewall-cmd --permanent --zone=FedoraServer --add-port=80/tcp
firewall-cmd --reload

******** Getting Astro Hat examples running ********

HAT: https://github.com/RPi-Distro/python-sense-hat
https://github.com/raspberrypi/hats
https://github.com/RPi-Distro/python-sense-hat (looks the good one...)
A lot needs to be install gcc/python-devel/gcc-gfortran/redhat-rpm-config (hard to guess this one!) and building takes ages...
libz-devel, jpeg-devel
testing... /root/python-sense-hat/examples
mssing https://github.com/RPi-Distro/RTIMULib cmake/gcc-c++
in RTIMULib/RTIMULi/build (mkdir ) cmake ... make make install.
in RTIMULib/Linux need qt-devel
in RTIMULib/Linux/python (probably the only one really needed!).
./python-sense-hat/examples/colour_cycle.py (works...)
./RTIMULib/Linux/build/RTIMULibCal/RTIMULibCal (to get the RTIMULib.ini to pur in /etc according to the doc).
******* Playing with the 8X8 frame buffer ****
+++
[root@jfcpc java]# pwd
/home/jfclere/tomcatPI/demo/src/main/java
[root@jfcpc java]# java -cp . org.jfclere.tomcatPI.PIFrameBuffer
file is 4096Exception in thread "main" java.io.IOException: No such device
at sun.nio.ch.FileChannelImpl.map0(Native Method)
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:926)
at org.jfclere.tomcatPI.PIFrameBuffer.main(PIFrameBuffer.java:22)
+++ OK ++++ It can't read it :-(
According to Python code:
from sense_hat import SenseHat
The LED matrix is an RGB565 framebuffer
(more or less working now committed).
https://github.com/jfclere/tomcatPI/blob/master/demo/src/main/java/org/jfclere/tomcatPI/PIFrameBuffer.java

********* Sending information to ActiveMQ and consuming it *******

yum install stomppy
install activemq on laptop
check stomp port:
INFO | Listening for connections at: stomp://jfcpc:61613?maximumConnections=1000&wireFormat.maxFrameSize=104857600
INFO | Connector stomp started
http://127.0.0.1:8161/admin/ (we receive something binary UTF8 encoded string).
write a STOMP logic to send message to ActiveMQ (running on my laptop)
https://github.com/jfclere/tomcatPI/tree/master/python
write a small jms client to consum the messages from the raspberry
https://github.com/jfclere/tomcatPI/tree/master/reader