[mythtv-users] systemd device

James Linder jam at tigger.ws
Mon Mar 4 23:40:01 UTC 2024


Aaaah thankyou, I forgot!
James

> On Mar 5, 2024, at 06:18, Stephen Worthington <stephen_agent at jsw.gen.nz> wrote:
> 
> On Tue, 5 Mar 2024 03:56:39 +0800, you wrote:
> 
>> I’m moving my backend to arm.
>> This works on x86_64 but 
> 
>> 
>> [sandypit] /home/jam [451]% systemctl status dev-dvb-adapter0-frontend0.device
>> ? dev-dvb-adapter0-frontend0.device - /dev/dvb/adapter0/frontend0
>>    Loaded: loaded
>>    Active: inactive (dead)
>> 
>> Mar 04 21:40:22 sandypit.home systemd[1]: dev-dvb-adapter0-frontend0.device: Job dev-dvb-adapter0-frontend0.device/start timed out.
>> Mar 04 21:40:22 sandypit.home systemd[1]: Timed out waiting for device /dev/dvb/adapter0/frontend0.
>> Mar 04 21:40:22 sandypit.home systemd[1]: dev-dvb-adapter0-frontend0.device: Job dev-dvb-adapter0-frontend0.device/start failed with result 'timeo>
>> Mar 04 21:50:43 sandypit.home systemd[1]: dev-dvb-adapter0-frontend0.device: Job dev-dvb-adapter0-frontend0.device/start timed out.
>> Mar 04 21:50:43 sandypit.home systemd[1]: Timed out waiting for device /dev/dvb/adapter0/frontend0.
>> Mar 04 21:50:43 sandypit.home systemd[1]: dev-dvb-adapter0-frontend0.device: Job dev-dvb-adapter0-frontend0.device/start failed with result ‘timeo>
>> 
>> [sandypit] /home/jam [452]% ls /dev/dvb/adapter0/frontend0
>> /dev/dvb/adapter0/frontend0
>> 
>> Am I being silly, or is this a bug in systemd
>> 
>> [sandypit] /home/jam [455]% cat /etc/os-release
>> PRETTY_NAME="Armbian 23.8.3 jammy"
>> NAME="Ubuntu"
>> VERSION_ID="22.04"
>> VERSION="22.04.3 LTS (Jammy Jellyfish)"
>> VERSION_CODENAME=jammy
>> ID=ubuntu
>> ID_LIKE=debian
>> HOME_URL="https://www.armbian.com"
>> SUPPORT_URL="https://forum.armbian.com"
>> BUG_REPORT_URL="https://www.armbian.com/bugs"
>> PRIVACY_POLICY_URL="https://www.armbian.com"
>> UBUNTU_CODENAME=jammy
>> ARMBIAN_PRETTY_NAME="Armbian 23.8.3 jammy”
> 
> It only works in systemd when you have added the udev rules that make
> the devices visible to systemd.  From Ubuntu:
> 
> root at mypvr:/etc/udev/rules.d# cat 99-tuner.rules
> #
> # Create systemd device units for capture devices
> #
> SUBSYSTEM=="video4linux", TAG+="systemd"
> SUBSYSTEM=="dvb", TAG+="systemd"
> SUBSYSTEM=="firewire", TAG+="systemd"
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