Question about release upgrade
by Peter Boy
When you upgrade a SBC from one release to the next using the dnf upgrade method, it updates all the files in the filesystem in the same way as with a standard installation - I guess. So it would be fine to use that method on a SBC installed by arm-image-installer.
But what about the files idbloader.img and u-boot.itb which arm-image-installer copies to the boot media in a separate dd step? Does the dnf method upgrades those, too, or do I have to do it manually afterwards? Or is there something else to do?
1 year, 1 month
Really disabling serial port?
by Chris Adams
I have a Pi 4B 2G with a Uputronics u-blox GPS HAT, which puts the GPS
module serial data on the first serial port lines. The problem is that
U-Boot stops boot on serial input, and the GPS module is always sending
data when it has a fix.
I put Fedora 36 Server on an SD card, and set the U-Boot stdin, stdout,
and stderr environment variables to exclude serial (which wrote
uboot.env), and that worked. Then I unplugged the keyboard... and it
appeared to automatically re-add the serial and stop boot.
I have an extra Logitech unifying receiver I could leave plugged in
(which seems to work), but that needlessly uses up a USB port. Is there
a way to tell U-Boot "no really, ignore input from the serial port"?
--
Chris Adams <linux(a)cmadams.net>
1 year, 1 month