On Wed, Aug 23, 2023 at 8:10 PM Chris Adams <linux(a)cmadams.net> wrote:
Just to re-test: I wrote the following two images (using the same uSD
card, so not it either):
Wrote them out on a F37 system with arm-image-installer like:
arm-image-installer --image <image> --media /dev/sda --addkey
../.ssh/id_ed25519.pub --resizefs --target rpi4
then, before moving the card to the Pi, mounted the first partition and
changed config.txt to include "dtoverlay=i2c-rtc,ds1307" (no other
change, so /boot/dtb symlink still present). When I boot the Server
image, it sees the RTC, when I boot the Xfce image, it does not.
I suspect the /boot partition on server is XFS and on XFCE it's ext4?
U-Boot can't load off XFS so it falls back to the FW provided DT and
hence basically is the same as not having the link there.
On the Xfce image, if I also remove the /boot/dtb symlink, it sees
So there's some inconsistency between images (maybe it's just that the
Server image is not working as expected?), but I guess I have a working
Suspect it's a difference in filesystems for /boot.