cmd-curthooks/configuring-multipath FAIL on system with no multipath

[Nick Kirsch]

I attempted to disable multipath but it didn't seem to have an effect. I noticed that none of the .conf files in /var/log/installer contain the multipath setting below. Note that I'm attempting this as part of the cloud-init associated with the Ubuntu 20.0 USB/ISO installer.

cloud-init config:

#cloud-config
autoinstall:
  version: 1
  locale: en_US.UTF-8
  refresh-installer:
    update: yes
  late-commands:
    - poweroff
  ssh:
    install-server: true
  multipath:
    mode: disabled
  network:
    ethernets:
      enp2s0: {dhcp4: true}
    version: 2
  storage:
    multipath:
      mode: disabled
    config:
    - {path: /dev/sda, preserve: true, name: '', grub_device: false, type: disk, id: disk-sda}
    - {path: /dev/sdb, preserve: true, name: '', grub_device: false, type: disk, id: disk-sdb}
    - name: md127
      raidlevel: container
      devices: [disk-sda, disk-sdb]
      spare_devices: []
      preserve: true
      metadata: imsm
      type: raid
      id: raid-md127
    - name: md126
      raidlevel: raid1
      devices: []
      spare_devices: []
      preserve: true
      wipe: superblock
      ptable: gpt
      container: raid-md127
      type: raid
      id: raid-md126

    - {device: raid-md126, 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: raid-md126, size: 1073741824, wipe: superblock, flag: '', number: 2, preserve: false, grub_device: false, type: partition, id: partition-1}
    - {fstype: ext4, volume: partition-1, preserve: false, type: format, id: format-1}

    - {device: raid-md126, size: 205GB, wipe: superblock, flag: '', number: 3, preserve: false, grub_device: false, type: partition, id: partition-2}
    - {fstype: ext4, volume: partition-2, preserve: false, type: format, id: format-2}

    - {device: raid-md126, size: 210GB, wipe: superblock, flag: '', number: 4, preserve: false, grub_device: false, type: partition, id: partition-3}
    - {fstype: ext4, volume: partition-3, preserve: false, type: format, id: format-3}

    - {path: /other, device: format-3, type: mount, id: mount-3}
    - {path: /, device: format-2, type: mount, id: mount-2}
    - {path: /boot, device: format-1, type: mount, id: mount-1}
    - {path: /boot/efi, device: format-0, type: mount, id: mount-0}

[Michael Hudson-Doyle (mwhudson)]

Where did you get the idea you could disable multipath that way? I don't think you can...