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dresden-elektronik / raspbee2-rtc

RTC kernel module builder for RaspBee II
BSD 3-Clause "New" or "Revised" License
21 stars 2 forks source link

Installation issues #11

Closed padzster closed 2 months ago

padzster commented 3 years ago

Hi

I'm running Homebridge on Raspberry Pi 4 Model B. I've bought the RaspBee II and installed as instructed here https://github.com/homebridge/homebridge-raspbian-image/wiki/How-To-Install-deCONZ-for-ConBee-or-RaspBee

However, when I get to entering these two lines:

sudo hwclock --systohc sudo hwclock --verbose

I get the following:

sudo hwclock --systohc hwclock: Cannot access the Hardware Clock via any known method. hwclock: Use the --verbose option to see the details of our search for an access method.

sudo hwclock --verbose hwclock from util-linux 2.33.1 System Time: 1607942858.226220 Trying to open: /dev/rtc0 Trying to open: /dev/rtc Trying to open: /dev/misc/rtc No usable clock interface found. hwclock: Cannot access the Hardware Clock via any known method.

Could anyone help please?

ChrisHae commented 3 years ago

Hi, can you first try these installation steps: https://phoscon.de/en/raspbee2/install#raspbian

padzster commented 3 years ago

Hi. Sorry for the delay. Just wanted to check: will this be compatible with Homebridge that is currently installed on the Pi?

ChrisHae commented 3 years ago

Yes, just the RTC-Installation. It is independent of Homebridge.

padzster commented 3 years ago

Hi. I ran the code but hit an error:

pi@homebridge:/var/lib/homebridge $ cd raspbee2-rtc-master pi@homebridge:/var/lib/homebridge/raspbee2-rtc-master $ make checking deb package dependencies... i2c-tools build-essential raspberrypi-kernel-headers build rtc module... make -C /lib/modules/5.4.51-v7l+/build M=/var/lib/homebridge/raspbee2-rtc-master modules make[1]: /lib/modules/5.4.51-v7l+/build: No such file or directory. Stop. make: [Makefile:17: build] Error 2 pi@homebridge:/var/lib/homebridge/raspbee2-rtc-master $ sudo make install install rtc module... make[1]: /lib/modules/5.4.51-v7l+/build: No such file or directory. Stop. could not install rtc module file (did you run make?) make: [Makefile:42: install] Error 1

what should i do?

ChrisHae commented 3 years ago

You need to update the kernel to the stable version 5.4.83. Or you use https://github.com/RPi-Distro/rpi-source to install the kernel headers for your kernel.

padzster commented 3 years ago

Sorry not sure what to do to update the kernel

ChrisHae commented 3 years ago

For me: doing sudo apt update then sudo apt upgrade and then reboot was enough. I had Kernel version 5.4.72 before and 5.4.83 afterwards. You can check your version with uname -r

padzster commented 3 years ago

Did all that and it still says 5.4.51-v7l+

ChrisHae commented 3 years ago

Then try rpi-source https://github.com/RPi-Distro/rpi-source Just follow the 3 steps: Dependencies, Install and Run. It does not upgrade youe kernel but it should install the build directory. Then just repeat the make and make install steps from the rtc installation.