Comment 1 for bug 2069305

Thank you for taking the time to make this bug Alfonso!

I can reproduce this in a noble-vm very easily.

$ lxc launch ubuntu:noble n-vm --vm
$ lxc shell n-vm
# rm /etc/ssh/sshd_config.d/60-cloudimg-settings.conf
# sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
# echo "root:pass" | chpasswd
# systemctl restart ssh
# scp root@localhost:/sys/firmware/efi/efivars/BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c .

However it's not just every file in /sys/, there are some files you can still scp. For example:

# scp root@localhost:/sys/firmware/efi/runtime .

You can also cp the efi variable file and then scp it fine.
# cp /sys/firmware/efi/efivars/BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c ./
# scp root@localhost:/root/BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c ./