[19:43] <alram> okay so
[19:43] <alram> now my OTHER Rpi4B with 64-bit Xubuntu died after a Linux kernel+uboot apt update (the u-boot was actually downgraded)
[19:43] <alram> the other one booted into the rainbow of death after the update, this one boots into the underscore of doom :D
[19:44] <alram> and it's been like a week or two since I tried to contact the devs on aarch64 side with all possible means to warn that the latest kernel update bricks the whole OS
[19:44] <alram> gee, I wish someone could help me out on this
[19:49] <alram> First of all... Is there any kind of guide on how to redo the uboot stuff and so forth for the RPi4B?
[20:28] <TJ-> alram: have you seen https://www.raspberrypi.org/documentation/hardware/raspberrypi/booteeprom.md
[22:51] <alram> TJ-: ep
[22:51] <alram> *yep