Ubuntu 自动安装 - UEFI

我们想使用新的 ubuntu 自动安装方法Autoinstall。让 UEFI 启动工作存在一些问题。我已经使用普通安装程序和 EFI 方法安装了 Ubuntu Server 20.04，然后获取了以下用户数据文件。

#cloud-config
autoinstall:
  apt:
    geoip: true
    preserve_sources_list: false
    primary:
    - arches: [amd64, i386]
      uri: http://de.archive.ubuntu.com/ubuntu
    - arches: [default]
      uri: http://ports.ubuntu.com/ubuntu-ports
  identity: {hostname: zsrv, password: $6$AYtLXyyVZAea2aLJ$UQxW1cz2vWWNn.17.3QYH5TxZqIMGoLJCpqbBTfClhUKxqouYn7/Yc5Jsq.bCeK0VDLPxbL6xzfJ0xqTb6MLk.,
    realname: root, username: root}
  keyboard: {layout: us, toggle: null, variant: ''}
  locale: C
  network:
    ethernets:
      enp1s0: {dhcp4: true}
    version: 2
  ssh:
    allow-pw: true
    authorized-keys: []
    install-server: true
  storage:
    config:
    - {ptable: gpt, wipe: superblock, preserve: false, name: '', grub_device: false,
      type: disk, id: disk-vda}
    - {ptable: gpt, wipe: superblock-recursive, preserve: false, name: '',
      grub_device: false, type: disk, id: disk-vdb}
    - {device: disk-vda, size: 536870912, wipe: superblock, flag: boot, number: 1,
      preserve: false, grub_device: true, type: partition, id: partition-0}
    - {fstype: fat32, volume: partition-0, preserve: false, type: format, id: format-0}
    - {device: disk-vda, size: 1073741824, wipe: superblock, flag: '', number: 2,
      preserve: false, type: partition, id: partition-1}
    - {fstype: ext4, volume: partition-1, preserve: false, type: format, id: format-1}
    - {device: disk-vdb, size: 24696061952, wipe: superblock, flag: '', number: 1,
      preserve: false, type: partition, id: partition-4}
    - {device: disk-vda, size: 24696061952, wipe: superblock, flag: '', number: 3,
      preserve: false, type: partition, id: partition-5}
    - name: md0
      raidlevel: raid1
      devices: [partition-4, partition-5]
      spare_devices: []
      preserve: false
      type: raid
      id: raid-0
    - {fstype: ext4, volume: raid-0, preserve: false, type: format, id: format-4}
    - {device: format-4, path: /, type: mount, id: mount-4}
    - {device: format-1, path: /boot, type: mount, id: mount-1}
    - {device: format-0, path: /boot/efi, type: mount, id: mount-0}
  version: 1

系统安装运行，但在下一次启动时，我被转储到 UEFI shell 中。是否需要运行一些安装后命令才能使 EFI 正常工作？

提前致谢。