Debian 11 will not boot after upgrade

#1

Upgraded the boot loader to use NVMe and flashed with Debian 11 to the NVMe via Etcher.
System boots fine and if I restart the system boots fine.
Connect wifi and do an update and upgrade then restart the system it stops booting with a flashing cursor top left. (The only boot device is the NVMe.)

Has anyone else seen this and have a solution?

thanks,

Del Mar

#2

Ah, it was the public Key me think’s as I ran this before the upgrade and the system reboots…

sudo apt-get install -y wget
source /etc/os-release
export DISTRO="${VERSION_CODENAME}-stable"
wget -O - apt.radxa.com/$DISTRO/public.key | sudo apt-key add -
sudo apt-get update