Oops!
another try:
root@cn1:~# ps ax | grep file-restore
3053385 ? Sl 0:03 qemu-system-x86_64 -chardev file,id=log,path=/dev/null,logfile=/dev/fd/20,logappend=on -serial chardev:log -vnc none -enable-kvm -kernel /usr/lib/x86_64-linux-gnu/proxmox-backup/file-restore/bzImage -initrd...