Many thanks Colin.

The log had many lines like

Sep 15 18:01:27 pi-solar-old kernel: [ 3631.364529] w1_master_driver w1_bus_master1: Attaching one wire slave 00.a20000000000 crc 13 Sep 15 18:01:27 pi-solar-old kernel: [ 3631.383280] w1_master_driver w1_bus_master1: Family 0 for 00.a20000000000.13 is not registered.

After a bit of head scratching I looked at /etc/owfs.config and that did not make much sense, so I deleted it and created a new one.  It is now working!

What I don't understand is how owfs.conf gets created in the first place.  I uninstalled and purged owserver and ow-shell, but owfs.conf was still there so I deleted it.  I then reinstalled but it didn't create owfs.conf, don't understand why.

Anyway, now I can get back to testing :)

Mick

On 15/09/2019 16:57, Colin Law wrote:
Check in the owserver log (likely /var/log/syslog) to see if it is showing errors.

Colin

On Sun, 15 Sep 2019, 12:08 Mick Sulley, <m...@sulley.info <mailto:m...@sulley.info>> wrote:

    I am having trouble getting owfs to work on Raspbian Buster.  I
    have posted on the Pi forum

    
https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=251702&p=1536228#p1536228

    Someone said they had the same problem but no suggestions to fix
    it, so I wonder if anyone here can give me a clue.

    I have just done a fresh install of Buster and updated. I ran
    raspi-config and enabled 1-wire and i2c.
    I have installed owserver ow-shell
    At first it worked, I could see devices with owdir, but it has
    stopped working, owdir returns nothing
    I have run "sudo systemctl enable owserver.service"
    but I see -

    |pi@pi-solar-old:~ $ sudo systemctl status owserver.service ●
    owserver.service - Backend server for 1-wire control Loaded:
    loaded (/lib/systemd/system/owserver.service; enabled; vendor
    preset: enabled) Active: failed (Result: protocol) since Fri
    2019-09-13 21:47:16 BST; 48s ago Docs: man:owserver(1) Main PID:
    493 (code=exited, status=0/SUCCESS) Sep 13 21:47:16 pi-solar-old
    systemd[1]: owserver.service: Service RestartSec=100ms expired,
    scheduling Sep 13 21:47:16 pi-solar-old systemd[1]:
    owserver.service: Scheduled restart job, restart counter is at Sep
    13 21:47:16 pi-solar-old systemd[1]: Stopped Backend server for
    1-wire control. Sep 13 21:47:16 pi-solar-old systemd[1]:
    owserver.service: Start request repeated too quickly. Sep 13
    21:47:16 pi-solar-old systemd[1]: owserver.service: Failed with
    result 'protocol'. Sep 13 21:47:16 pi-solar-old systemd[1]: Failed
    to start Backend server for 1-wire control. pi@pi-solar-old:~ $ |||

    |I have tried disable, enable, restart for the service, I have
    removed and reinstalled owserver and ow-shell but nothing helps.|

    |Any ideas?
    |

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