curtin-dev team mailing list archive

[Patricia Domingues <1895922@xxxxxxxxxxxxxxxxxx>]

some info about this issue:
1. when it was working (able to deploy the enlisted VMs) we had MAAS 2.8.1 and curtin version `curtin: Installation started. (19.3-26-g82f23e3d-0ubuntu1~18.04.1)`.
2. it is possible to deploy VMs created via MAAS KVM host type virsh. 
3. the VMs that we can not deploy anymore were created via uvt-kvm(uvtool).
4. creating a NEW VM via virt-install(virtinst) and using an image from `https://cloud-images.ubuntu.com/` it does works - can deploy the VMs.
5. having the same error on amd64 and arm64.

** Also affects: uvtool
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1895922

Title:
  maas could not deploy a kvm-based vm via virsh

Status in curtin:
  New
Status in uvtool:
  New
Status in curtin package in Ubuntu:
  New
Status in maas package in Ubuntu:
  New

Bug description:
  Curtin process failed during MaaS deployment. The infrastructure
  worked well until ~3 weeks ago.

  [Steps to Reproduce]
  1. Enlist and commission a KVM-based VM in MaaS 2.8.2 (8577-g.a3e674063)
  2. Deploy the VM node

  - Reproducing environment: nodes named after "scalebot-dev-controller" prefix in tremont lab maas.
  - Those vm were created (via virsh command), enlisted (via maas web UI), and commissioned (via maas web UI) manually. They are not created via MaaS pod controlling flow.

  [Expected Result]
  1. The VM is deployed

  [Actual Result]
  Curtin failed during the deployment

  Here is the error message:

          Generating grub debconf_selections for devices=['/dev/vda'] uefi=False
          finish: cmd-install/stage-curthooks/builtin/cmd-curthooks/install-grub: FAIL: installing grub to target devices
          finish: cmd-install/stage-curthooks/builtin/cmd-curthooks/configuring-bootloader: FAIL: configuring target system bootloader
          finish: cmd-install/stage-curthooks/builtin/cmd-curthooks: FAIL: curtin command curthooks
          Traceback (most recent call last):
            File "/curtin/curtin/commands/main.py", line 202, in main
              ret = args.func(args)
            File "/curtin/curtin/commands/curthooks.py", line 1770, in curthooks
              builtin_curthooks(cfg, target, state)
            File "/curtin/curtin/commands/curthooks.py", line 1736, in builtin_curthooks
              setup_grub(cfg, target, osfamily=osfamily)
            File "/curtin/curtin/commands/curthooks.py", line 689, in setup_grub
              configure_grub_debconf(instdevs, target, uefi_bootable)
            File "/curtin/curtin/commands/curthooks.py", line 509, in configure_grub_debconf
              link = block.disk_to_byid_path(dev)
            File "/curtin/curtin/block/__init__.py", line 869, in disk_to_byid_path
              mapping = get_dev_disk_byid()
            File "/curtin/curtin/block/__init__.py", line 861, in get_dev_disk_byid
              return _get_dev_disk_by_prefix('/dev/disk/by-id')
            File "/curtin/curtin/block/__init__.py", line 846, in _get_dev_disk_by_prefix
              for path in os.listdir(prefix)]
          FileNotFoundError: [Errno 2] No such file or directory: '/dev/disk/by-id'
          [Errno 2] No such file or directory: '/dev/disk/by-id'

  VM kernel: Linux scalebot-dev-controller5 4.15.0-117-generic
  #118-Ubuntu SMP Fri Sep 4 20:02:41 UTC 2020 x86_64 x86_64 x86_64
  GNU/Linux

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: curtin (not installed)
  ProcVersionSignature: User Name 4.15.0-117.118-generic 4.15.18
  Uname: Linux 4.15.0-117-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  Date: Thu Sep 17 04:38:32 2020
  SourcePackage: curtin
  UpgradeStatus: No upgrade log present (probably fresh install)

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