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[Michael Hudson-Doyle <1899471@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: curtin
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1899471

Title:
  tries to use sfdisk on dasd disk and dies

Status in curtin:
  In Progress
Status in subiquity:
  In Progress
Status in Ubuntu on IBM z Systems:
  In Progress

Bug description:
  Hi,
  I tried to set up the following custom layout on s390x:

  2* dasd => LVM
    - /boot
    - /
  2* scsi => LVM
    - /var

  On install it tries to use sfdisk on a dasd device (known to not work) and breaks.
  Other than usual it breaks so bad it doesn't even ask me to submit an error report with the data.

  I have used apport-bug and provided a video to help.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
  Uname: Linux 5.4.0-42-generic s390x
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27.4
  Architecture: s390x
  CasperMD5CheckResult: pass
  CasperVersion: 1.445.1
  CrashDB: {'impl': 'launchpad', 'project': 'subiquity'}
  Date: Mon Oct 12 12:00:08 2020
  ExecutablePath: /snap/subiquity/1969/usr/bin/subiquity
  InterpreterPath: /snap/subiquity/1969/usr/bin/python3.6
  LiveMediaBuild: Ubuntu-Server 20.04.1 LTS "Focal Fossa" - Release s390x (20200731)
  Lspci:
   
  Lspci-vt: -[0000:00]-
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  Lsusb-t: Error: command ['lsusb', '-t'] failed with exit code 1: /sys/bus/usb/devices: No such file or directory
  Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
  ProcAttrCurrent: snap.subiquity.subiquity (complain)
  ProcCmdline: /snap/subiquity/1969/usr/bin/python3 /snap/subiquity/1969/usr/bin/subiquity
  ProcKernelCmdLine:
   --- quiet
   am0 ro
  Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  Snap: subiquity 20.07.1+git2.5de9df3e ()
  SnapChannel:
   
  SnapRevision: 1969
  SnapUpdated: False
  SnapVersion: 20.07.1+git2.5de9df3e
  Title: install failed crashed with CalledProcessError
  UpgradeStatus: No upgrade log present (probably fresh install)
  UsingAnswers: False

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