Starting from Trixie, some paths have changed. Here is the complete walkthrough for the process: Install necessary tools (i2c-tools and hwclock are not present by default in Armbian trixie): sudo apt install i2c-tools util-linux-extra Edit armbianEnv.txt: sudo nano /boot/armbianEnv.txt Append i2c0 to the line that says overlays=...: overlays=... i2c0 ("..." denotes some overlays already written, do not delete them). Reboot (compulsory to load i2c module): sudo reboot now Inquire availability of module rtc-ds1307 in the kernel (present in trixie): sudo modinfo rtc-ds1307 If it returns some description, the module is present. If not, then install its driver from GitHub. Open modules file: sudo nano /etc/modules Add line rtc-ds1307 in it. Save and close. Run the following command: sudo i2cdetect -y 0 It should return 68 in the grid: 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Then add module to start up: sudo modprobe rtc-ds1307 sudo echo ds1307 0x68 > /sys/class/i2c-dev/i2c-0/device/new_device The DS1307 should now be available at /dev/rtc1, which you can check: sudo ls /dev/ | grep rtc Initialize rtc1 (once) sudo hwclock --rtc /dev/rtc1 --systohc Create a new file rtc_ds1307.sh: sudo nano /usr/local/bin/rtc_ds1307.sh Add following lines in it: #!/bin/bash echo "Creating entry for rtc_1307 service" | systemd-cat -p info sudo echo ds1307 0x68 > /sys/class/i2c-dev/i2c-0/device/new_device echo "Done" | systemd-cat -p info echo "Symlinking /dev/rtc1 to /dev/rtc" | systemd-cat -p info sudo ln -f -s /dev/rtc1 /dev/rtc echo "Done" echo "Syncing RTC time to system time" | systemd-cat -p info sudo hwclock --hctosys --noadjfile --utc -f /dev/rtc1 echo "Done" Save and exit. Make this file executable: sudo chmod +x /usr/local/bin/rtc_ds1307.sh Create a systemd service to run this script at startup: sudo nano /etc/systemd/system/rtc_ds1307.service Add following lines in it: [Unit] Description=Synchronize system clock to RTC Requires=systemd-modules-load.service After=systemd-modules-load.service ConditionPathExists=/sys/class/i2c-dev [Service] Type=oneshot RemainAfterExit=yes ExecStart=/usr/local/bin/rtc_ds1307.sh [Install] WantedBy=multi-user.target Save and exit. Enable the service: sudo chmod 644 /etc/systemd/system/rtc_ds1307.service sudo systemctl enable rtc_ds1307.service Reboot and check system date time by running: timedatectl

@Sergioclr output of USB-to-TTL converter. sudo dmesg

Is there an armbian with home-assistant installed?

So I'm fairly new to Armbian (although I have already managed to successfully create a custom build with most of what I need). Sadly, I've very much hit a blocker. I really need to use linux-tools/perf on an RK3588 board with a vendor kernel (I'm using the Mali OpenCL, and the ARM packages are mostly locked) and I need to do some performance tuning. I cannot figure out how to get these tools deployed. 1. There are no linux-tools packages build -- which is fair enough, I'm probably in a minority. Some parts of the tools directories are culled during a cleaning process for the headers, I can see that 2. I am happy to copy over the kernel source and build on the device, but this is a patched vendor kernel. Can I just rsync across `cache/sources/linux-kernel-worktree`? Is that the patched kernel source tree? 3. There are some old allusions in the forums to using armbian-config to get sources -- I'm guessing that's long deprecated 4. Would it be appropriate at some point to create a .deb for the actual kernel sources, just in case -- or even, ideally, the linux-tools packages themselves? I am very happy to invest effort into helping make this happen, but I am starting from cold into this fairly complex build infrastructure, so any help or pointers I'd be extremely grateful.

How to install Armbian on an eMMC module? Simply using Armbian Imager with the image file doesn't work—the system won't boot. The official Radxa OS boots fine from the same eMMC module.