DIY (Do It Yourself)


Sometimes you need to perform a network installation (i.e. when no USB or DVD drive is allowed to boot, but you can boot PXE). In case of FreeBSD you can use DNSMASQ to serve the DHCP that will assign the initial client address and configuration along with PXE boot image served over tFTP. At this point you will have bootloader running, so you can serve filesystem over NFS to obtain working environment and/or the installer..

  • Create a directory that will hold the target filesystem over network. In my case that was
    /usr/local/tftp/FreeBSD
  • Put OS/Installer files inside above directory
    cd /usr/local/tftp/FreeBSD
    wget http://(..)/file.iso
    7z x file.iso
  • Edit /etc/exports to export the filesystem over NFS
    /usr/local/tftp/FreeBSD -ro -alldirs -network 192.168.0.0
  • Install the dnsmasq
    pkg install dnsmasq
  • Setup the /usr/local/etc/dnsmasq.conf
    enable-tftp
    tftp-root=/usr/local/tftp/FreeBSD
    
    dhcp-range=192.168.0.50,192.168.0.60,255.255.255.0,1h
    dhcp-boot=boot/pxeboot
    dhcp-option=option:router,
    dhcp-option=option:root-path,/usr/local/tftp/FreeBSD
    
  • Restart services
    service nfsd onerestart
    service dnsmasq onerestart
  • In case you get bootloader running but troubles with NFS make sure that mountd is running. Also you can see who is using the NFS shares with
    showmount -a

PXE Boot always use initial DHCP/tFTP to fetch configuration and bootloader, so the first stage is similar and should work with other Operating Systems and Bootloaders as well, the rest is up to bootloader itself..

It is my great pleasure to inform you folks that, almost after four years, I did a new release of LibSWD-0.7 [1], a low-level embedded systems access open framework. Special thanks goes to Andrew Parlane of Carallon Ltd [2] for his much appreciated contributions! Well now I feel like I need to invent some nice small device based on ARM Cortex-M0 CPU πŸ™‚

[1] https://github.com/cederom/LibSWD
[2] http://www.carallon.com/

If you want to install additional Python [1] modules inside your Blender [2] environment, you can install PIP using this recommended script [3], then use PIP to install all modules that you want. Note Blender’s Python Virtualenv location is /path_to_blender/blender_version/python/bin/python and you need to use this particular interpreter to launch the script.

[1] https://www.python.org/
[2] https://www.blender.org/
[3] https://pip.pypa.io/en/stable/installing/

I have recently started the OrangeADE project [1], that is Orange Autonomous Device Evaluation, an online platform to evaluate security level of network equipment and verify against known vulnerabilities. OrangeADE is released as Open-Source under the “new” 3-Clause BSD license. Enjoy the work in progress! πŸ™‚

[1] https://github.com/CeDeROM/OrangeADE

Blender 3D can work with DualShock4 Playstation4 wireless controller over Bluetooth [1].

[1] http://www.blendswap.com/blends/view/78315

Created a FreeBSD Port for Google Protobuf version 3.1.0 πŸ™‚

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214957

Starting up the Configuration Reference Manual for Ultimaker CURA 3D printing Open-Source software πŸ™‚

https://github.com/Ultimaker/Cura/wiki/Cura-Configuration-Reference-Manual

Why only NEXUS devices are sensible choice for Advanced Android Users and Developers? Because NEXUS device vendors provide source code and device drivers.

This makes is possible to re-compile and re-create any customization of the Android by advanced users and developers. The most popular among them is CyanogenMod based on AOSP (Android Open Source Project).

Why is such customization really necessary? Because Vendors does not keep up with the Android development, their releases are flawed, contains unwanted modifications, quite often development is abandoned just after product release.

I know that Drivers Development is time and money consuming task for Vendors. Still, providing source code for device drivers would make it possible to run alternative and/or customized OS, also prolong device life for second-hand users in poor countries. Vendor sells the device anyway and Users can make fixes and customization. Why this Win-Win scheme is so hard to achieve in reality? Is really enforcing sales with mass garbage so important?

Sony Xperia phones are my favorite. Very good and durable electronics, amazing photo camera, nice utilities on top of standard Google Android OS. I have also always respected Xperia for allowing users to unlock their phones for Open-Source Firmware Customization on this amazing hardware..

xperiacompanionfail

Unfortunately, Sony seems to have this habit to make a bad decisions, so amazing hardware is not always followed with a good software. This is why Open-Source Customization is so important. I have already found several nice devices with a really bad firmware. What is more, this corruption seems to spread, and Sony blocks factory firmware restore for an unlocked devices with their official Xperia Companion utility. This means unlocking a device does not only Voids a Warranty, but also silently makes it Impossible to Go Back to a Stock Firmware! This is really bad idea.

emma

Luckily smart people tends to predict and help each other out. Developer team of Sony Mobile released EMMA utility (nice name by the way) that allows you to re-flash mobile that is unlocked in case something goes wrong or you simply want to get back to a stock firmware.

Open-Source Firmware Customization will become a standard, even for large enterprises, with mutual benefit to their customers, because looking at the big picture we are part of the same eco(no)system..

As an exercise, I have just designed (using FreeCAD) and 3D-Printed (using semi-translucent PLA material) a casing for M24LR-DISCOVERY (CR95HF NFC Reader). Let me know if you need one πŸ™‚


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