Sorry guys. Gotta bail and get the siblings from school. Really appreciate your responses, advice and patience. Will have another look at it when time permits.
Take care NOT to use this command:
sudo dump1090-fa
Use this command:
sudo systemctl restrat dump1090-fa
Reason:
Every time you issue commamd sudo dump1090-fa, it starts a new instance of dump1090-fa even if another instance is already running. As the dongle is already in use by first instance, the new instance fails with usb claim error 6.
On the otherhand the command with systemctl restart first stops any running instance, and then start a new instance, so there is alway only one instance running, and there is no usb claim error 6.
Sorry, I may have confused you with another poster. I canât find the thread that I am thinking of right now, but someone has said several times that they donât like Ubuntu and prefer Debian because it boots faster or some such.
Edit: This is the comment that I was remembering: Linux LapTop - #3 by abcd567
Yes, I said it, but it was preference based on performance (speed), not a dislike for Ubuntu,.
Apart from speed, I otherwise prefer Ubuntu over Debian, and for last 10 years have my desktop dual boot (Windows/Ubuntu).
pi@orangepipc:~$ sudo dump1090-fa
Wed Nov 13 03:06:58 2019 EST dump1090-fa 3.7.2 starting up.
rtlsdr: using device #0: Generic RTL2832U (Realtek, RTL2832U, SN 00001090)
usb_claim_interface error -6
rtlsdr: error opening the RTLSDR device: Device or resource busy
.
pi@orangepipc:~$ sudo systemctl stop dump1090-fa
.
pi@orangepipc:~$ sudo dump1090-fa
Wed Nov 13 03:07:14 2019 EST dump1090-fa 3.7.2 starting up.
rtlsdr: using device #0: Generic RTL2832U (Realtek, RTL2832U, SN 00001090)
Found Rafael Micro R820T tuner
rtlsdr: tuner gain set to 49.6 dB
Allocating 4 zero-copy buffers
Detected Kernel usbfs mmap() bug, falling back to buffers in userspace
*8dc0816e990d5d159004a84c2801;
CRC: 000000
RSSI: -21.8 dBFS
Score: 1400
Time: 144595.08us
DF:17 AA:C0816E CA:5 ME:990D5D159004A8
Extended Squitter Airborne velocity over ground, subsonic (19/1)
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
Geom - baro: -975 ft
Ground track 296.2
Groundspeed: 387.7 kt
Baro rate: 0 ft/min
NACv: 1
*5dc0816ef110d8;
CRC: 000000
RSSI: -21.4 dBFS
Score: 1600
Time: 650175.83us
DF:11 AA:C0816E IID:0 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
*8dc0816e990d5d159004a84c2801;
CRC: 000000
RSSI: -19.2 dBFS
Score: 1800
Time: 714591.75us
DF:17 AA:C0816E CA:5 ME:990D5D159004A8
Extended Squitter Airborne velocity over ground, subsonic (19/1)
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
Geom - baro: -975 ft
Ground track 296.2
Groundspeed: 387.7 kt
Baro rate: 0 ft/min
NACv: 1
*8d3951c29909d4183808b159ba73;
CRC: 000000
RSSI: -12.7 dBFS
Score: 1400
Time: 939603.08us
DF:17 AA:3951C2 CA:5 ME:9909D4183808B1
Extended Squitter Airborne velocity over ground, subsonic (19/1)
ICAO Address: 3951C2 (Mode S / ADS-B)
Air/Ground: airborne
Geom - baro: -1200 ft
Ground track 67.7
Groundspeed: 504.9 kt
Baro rate: -64 ft/min
NACv: 1
*8d3951c258b504cbbb50a0e5aef3;
CRC: 000000
RSSI: -12.6 dBFS
Score: 1800
Time: 1099514.00us
DF:17 AA:3951C2 CA:5 ME:58B504CBBB50A0
Extended Squitter Airborne position (barometric altitude) (11)
ICAO Address: 3951C2 (Mode S / ADS-B)
Air/Ground: airborne
Baro altitude: 35000 ft
CPR type: Airborne
CPR odd flag: odd
CPR latitude: (26077)
CPR longitude: (86176)
CPR decoding: none
NIC-B: 0
NACp: 8
SIL: 2 (p <= 0.001%, unknown type)
*5dc0816ef110df;
CRC: 000007
RSSI: -20.0 dBFS
Score: 1000
Time: 1184470.75us
DF:11 AA:C0816E IID:7 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
*5dc0816ef110de;
CRC: 000006
RSSI: -19.9 dBFS
Score: 1000
Time: 1238513.92us
DF:11 AA:C0816E IID:6 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
*5d3951c2096d4b;
CRC: 000000
RSSI: -13.4 dBFS
Score: 1600
Time: 1245119.75us
DF:11 AA:3951C2 IID:0 CA:5
All Call Reply
ICAO Address: 3951C2 (Mode S / ADS-B)
Air/Ground: airborne
*5dc0816ef110da;
CRC: 000002
RSSI: -19.7 dBFS
Score: 1000
Time: 1252965.75us
DF:11 AA:C0816E IID:2 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
*5dc0816ef110de;
CRC: 000006
RSSI: -19.5 dBFS
Score: 1000
Time: 1263572.75us
DF:11 AA:C0816E IID:6 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
*8dc073e499146a09d0649c8190d3;
CRC: 000000
RSSI: -17.2 dBFS
Score: 1400
Time: 1275800.08us
DF:17 AA:C073E4 CA:5 ME:99146A09D0649C
Extended Squitter Airborne velocity over ground, subsonic (19/1)
ICAO Address: C073E4 (Mode S / ADS-B)
Air/Ground: airborne
Geom - baro: -675 ft
Ground track 306.3
Groundspeed: 130.2 kt
Baro rate: 1536 ft/min
NACv: 2
*5dc0816ef110d1;
CRC: 000009
RSSI: -19.5 dBFS
Score: 1000
Time: 1291350.25us
DF:11 AA:C0816E IID:9 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
*5d3951c2096d42;
CRC: 000009
RSSI: -14.0 dBFS
Score: 1000
Time: 1431236.33us
DF:11 AA:3951C2 IID:9 CA:5
All Call Reply
ICAO Address: 3951C2 (Mode S / ADS-B)
Air/Ground: airborne
*5d3951c2096d42;
CRC: 000009
RSSI: -13.8 dBFS
Score: 1000
Time: 1444152.25us
DF:11 AA:3951C2 IID:9 CA:5
All Call Reply
ICAO Address: 3951C2 (Mode S / ADS-B)
Air/Ground: airborne
*5d3951c2096d42;
CRC: 000009
RSSI: -13.4 dBFS
Score: 1000
Time: 1453991.25us
DF:11 AA:3951C2 IID:9 CA:5
All Call Reply
ICAO Address: 3951C2 (Mode S / ADS-B)
Air/Ground: airborne
*5dc0816ef110d8;
CRC: 000000
RSSI: -18.9 dBFS
Score: 1600
Time: 1455197.00us
DF:11 AA:C0816E IID:0 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
^CWed Nov 13 03:07:17 2019 EST Caught SIGINT, shutting down..
*5dc0816ef110db;
CRC: 000003
RSSI: -18.8 dBFS
Score: 1000
Time: 1566849.42us
DF:11 AA:C0816E IID:3 CA:5
All Call Reply
ICAO Address: C0816E (Mode S / ADS-B)
Air/Ground: airborne
Wed Nov 13 03:07:17 2019 EST Waiting for receive thread termination
Wed Nov 13 03:07:18 2019 EST Normal exit.
pi@orangepipc:~$
I have installed 18.04 and everything related to piaware using the above mentioned @abcd567 abcd567 guide and it works. Afte rthat I have added airpsy_adsb support for my Airspy Mini.
Yes the signature fails, but that doesnât hurt anything.
And after that first boot, one can upgrade easily - actually the Ubuntu graphical will download and install updates right at the first start.
Warning - one of the newer kernels didnât boot on one of my laptops, I had to instruct Grub to use a previous kernel.