Giga Technology Forum

HF Noise Monitoring => HF Noise Monitoring => Topic started by: Anton Janovsky (ZR6AIC) on January 30, 2018, 12:00:58 pm

Title: HF Noise monitoring system running from Live Ubuntu Memory stick
Post by: Anton Janovsky (ZR6AIC) on January 30, 2018, 12:00:58 pm
HF Noise monitoring system running from Live Ubuntu Memory stick with fully configured environment.

 HF Noise monitoring system running from Live Ubuntu USB flash drive.
(https://4.bp.blogspot.com/-rxHaiXPKRx0/WfoddjlGupI/AAAAAAABXmE/hwALL5ra_bUklDxVgOKFq-FnhaPNVO9tQCPcBGAYYCw/s1600/usb_stick.jpeg)
Ubuntu Live Noise Monitoring system with Persistence. 16Gb
I wanted a Preconfigured RF Noise monitoring system that I can run on my Laptop when ever I am not using it for something else.
I made this Ubuntu 16.04 Live memory stick .

This dongle is available from my Shop at http://www.giga.co.za/ocart/index.php?route=product/product&product_id=344

So how dose it work?
Configure your BIOS to boot from USB flash drive and you should then see the following screens.
(https://3.bp.blogspot.com/-mpbVbFFLKBY/WgxCfABEmqI/AAAAAAABXzE/A1kNcl59xO4OyCP5bzskiVHCXZbdRZyegCLcBGAs/s400/20171113_191040.jpg)
Just pres enter to continue
If you see the error above just pres Enter  You should then get a screen where you can select how you want to boot your environment Persistent or not.
Select  the Persistent live boot.
(https://4.bp.blogspot.com/-utP176nnlsg/WgxDAq35H6I/AAAAAAABXzQ/_P_feFpRafEcAbQPj2xXSg-kYFzR7OcWwCLcBGAs/s400/20171113_191046.jpg)
Select the Persistent live option.
You could then see a screen for a few seconds looking like this.
(https://4.bp.blogspot.com/-Fm2S1QUAxIM/WgxD7CZlBuI/AAAAAAABXzc/U8ZjUn8WcUkwsoChIusVZunEB-I4QeSlgCLcBGAs/s400/20171113_191056.jpg)
Black screen before startup   
This picture is of Ubunto 17.10 The Noise system is on Ubuntu 16.04   
(https://4.bp.blogspot.com/-bhVnLNACmRc/Wf83ggtMbkI/AAAAAAABXqE/Cv1wUAfWvs8VXnVzHYjHgjyQ1v0D4StHACPcBGAYYCw/s400/Ubuntu17_10.png)
Here is some of the sunscreens of some of the functionality
(https://2.bp.blogspot.com/-C3hLgkQPUW4/Wg2TCxT_tSI/AAAAAAABX1Y/_F5p9OO21qkkpYCl-IUwxVPdb3t-XEUUwCLcBGAs/s400/hf_monitor_3.png)
HF Heat map
 Noise Graphs  (link to a live system) http://zr6aic.giga.co.za/hf_noise (http://zr6aic.giga.co.za/hf_noise)
(https://4.bp.blogspot.com/-MJxEbj842Ds/Wg2UdfrduFI/AAAAAAABX1s/HzG-dIirKPwQ05Leji1tmcE-8PceqBaYQCLcBGAs/s400/hf_noise_6.png)

Posted by Anton Janovsky at 3:41 PM Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest
Labels: Amateur Radio, HF, Interference, Noise, Radio, RF, RFI, South Africa
Thursday, November 2, 2017
How to make a persisnt ubuntu LIve Memeory stick (16GB)
How to make a persistent live Ubuntu USB Memory stick (16GB)

16Gb Flash disk
I wanted to create a boo-table Ubuntu live flash stick that will also keep my last installed applications and not default back to standard when I reboot.

Ubuntu 17.10 Live with all my apps

You need to create two partition fat32 for the Ubuntu instillation from ISO file and a ext4 casper-rw partition for the persistent part. The compleet proses is done with a application called DUS.
Here is the process to install the DUS software
sudo add-apt-repository universe
sudo add-apt-repository ppa:mkusb/ppa
sudo apt-get update
sudo apt-get install mkusb usb-pack-efi
sudo apt-get install mkusb-nox usb-pack-efi
dus



Select the following on the screens.

1) Double-Click on the i option Install(make a boot device):
2) Double-Click on the p option Persistent Live and select the .iso file:
3) Click on the USB drive to make persistent. I want to use my 32 GB one so I mark the radio button:
4) Click Use Defaults to let mkusb choose default:
5) Enter a percentage of the drive to reserve for persistence. Mine is a large (32GB) so I allot only 20% ~ 6GB. The remaining space will be turned into an empty portable drive:
6) Double check very carefully and confirm. You don't want to mess up another drive.

Waite until 'Done' is written go and get some coffie :-)

 Here was my configuration

Cruzer Blade     sdb                                                    14.6G
                 |-sdb4 iso9660 Ubuntu 17.10 amd64         1.4G
                 |-sdb2                                                         1M
                 |-sdb5 ext4    casper-rw                             12.9G
                 |-sdb3 vfat    usbboot                                 244M
                 `-sdb1                                                        1.1M


ref : https://askubuntu.com/questions/397481/how-to-make-a-persistent-live-ubuntu-usb-with-more-than-4gb
and https://help.ubuntu.com/community/LiveCD/Persistence