What's a good image to use now? [tutorial help as well]

[wdt]

It seems to have found the previous attempts, this is where it seems to go wrong,
at the release signature
--------
>>>> Mounting target filesystem

+ '[' -z '' ']'
+ mkdir -p /home/d/pinebook-pro-debian-installer/sysimage
+ sudo mount /dev/sda6 /home/d/pinebook-pro-debian-installer/sysimage
+ sudo mkdir -p /home/d/pinebook-pro-debian-installer/sysimage/boot
+ sudo mount /dev/sda5 /home/d/pinebook-pro-debian-installer/sysimage/boot
+ sudo mkdir -p /home/d/pinebook-pro-debian-installer/sysimage/boot/efi
+ sudo mount /dev/sda4 /home/d/pinebook-pro-debian-installer/sysimage/boot/efi
+ do_debootstrap
+ printf '\n\n>>>> Installing base system\n\n'


>>>> Installing base system

+ '[' '!' -e debootstrap-arm64.tar.gz ']'
+ do_real_debootstrap
+ sudo debootstrap --arch=arm64 --include ca-certificates,console-setup,cryptsetup-initramfs,initramfs-tools,locales,keyboard-configuration,network-manager,sudo,u-boot-menu,gnupg,plymouth,plymouth-themes bullseye /home/d/pinebook-pro-debian-installer/sysimage
I: Retrieving InRelease
I: Checking Release signature
E: Release signed by unknown key (key id 605C66F00D6C9793)
+ do_umount
+ printf '\n\n>>>> umount\n\n'


>>>> umount

+ for i in boot/efi boot dev proc sys
+ sudo umount /home/d/pinebook-pro-debian-installer/sysimage/boot/efi
+ true
+ for i in boot/efi boot dev proc sys
+ sudo umount /home/d/pinebook-pro-debian-installer/sysimage/boot
+ true
+ for i in boot/efi boot dev proc sys
+ sudo umount /home/d/pinebook-pro-debian-installer/sysimage/dev
umount: /home/d/pinebook-pro-debian-installer/sysimage/dev: mountpoint not found
+ for i in boot/efi boot dev proc sys
+ sudo umount /home/d/pinebook-pro-debian-installer/sysimage/proc
umount: /home/d/pinebook-pro-debian-installer/sysimage/proc: mountpoint not found
+ for i in boot/efi boot dev proc sys
+ sudo umount /home/d/pinebook-pro-debian-installer/sysimage/sys
umount: /home/d/pinebook-pro-debian-installer/sysimage/sys: mountpoint not found
+ sudo umount /home/d/pinebook-pro-debian-installer/sysimage
+ true
+ '[' '!' -z '' ']'