[Bug 2142736] Re: Install remains on 'Preparing Ubuntu'

[Olivier Gayot]

Thank you for the bug report!


Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]: Traceback (most recent call last):
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "<frozen runpy>", line 198, in _run_module_as_main
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "<frozen runpy>", line 88, in _run_code
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "/snap/ubuntu-desktop-bootstrap/507/bin/subiquity/subiquity/cmd/server.py", line 26, in <module>
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:     from subiquity.server.controllers.filesystem import set_user_error_reportable
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "/snap/ubuntu-desktop-bootstrap/507/bin/subiquity/subiquity/server/controllers/__init__.py", line 20, in <module>
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:     from .drivers import DriversController
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "/snap/ubuntu-desktop-bootstrap/507/bin/subiquity/subiquity/server/controllers/drivers.py", line 22, in <module>
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:     from subiquity.server.apt import OverlayCleanupError
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "/snap/ubuntu-desktop-bootstrap/507/bin/subiquity/subiquity/server/apt.py", line 30, in <module>
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:     from curtin.commands.extract import AbstractSourceHandler
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "/snap/ubuntu-desktop-bootstrap/507/lib/python3.12/site-packages/curtin/commands/extract.py", line 15, in <module>
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:     from curtin import util
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:   File "/snap/ubuntu-desktop-bootstrap/507/lib/python3.12/site-packages/curtin/util.py", line 24, in <module>
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]:     from curtin.vendor.cpython.platform import parse_os_release
Feb 26 09:08:49 ubuntu ubuntu-desktop-bootstrap.subiquity-server[3454]: ModuleNotFoundError: No module named 'curtin.vendor'

I already have PRs in flight to fix this issue:

* https://github.com/canonical/subiquity/pull/2331
* https://github.com/canonical/curtin/pull/21

Thank you

** Changed in: subiquity
     Assignee: (unassigned) => Olivier Gayot (ogayot)

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

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

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

** Changed in: curtin
     Assignee: (unassigned) => Olivier Gayot (ogayot)

** Changed in: curtin
   Importance: Undecided => High

** Changed in: subiquity
   Importance: Undecided => High

** Summary changed:

- Install remains on 'Preparing Ubuntu'
+ ModuleNotFoundError: No module named 'curtin.vendor'

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https://bugs.launchpad.net/bugs/2142736

Title:
  ModuleNotFoundError: No module named 'curtin.vendor'

Status in curtin:
  In Progress
Status in subiquity:
  In Progress

Bug description:
  Try install from ISO dated Feb 26.
  Install remains on 'Preparing Ubuntu'
  after about 2 minutes appears a message saying 'something went wrong'
  i reported the issue, but no bug was open.
  attaching log

  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: subiquity (unknown)
  ProcVersionSignature: Ubuntu 6.19.0-6.6-generic 6.19.2
  Uname: Linux 6.19.0-6-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 26.04.0
  CloudArchitecture: x86_64
  CloudID: nocloud
  CloudName: unknown
  CloudPlatform: nocloud
  CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud)
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Feb 26 09:20:10 2026
  DesktopInstallerRev: 507
  LiveMediaBuild: Ubuntu 26.04 LTS "Resolute Raccoon" - Daily amd64 (20260226)
  MachineType: Gigabyte Technology Co., Ltd. H510M H
  ProcEnviron:
   LANG=C.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz iso-scan/filename=/home/corrado/Downloads/rr-0226.iso --- quiet splash
  SnapUpdated: False
  SnapVersion: unknown
  SourcePackage: subiquity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/25/2022
  dmi.bios.release: 5.19
  dmi.bios.vendor: American Megatrends International, LLC.
  dmi.bios.version: F14
  dmi.board.asset.tag: Default string
  dmi.board.name: H510M H
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrF14:bd03/25/2022:br5.19:svnGigabyteTechnologyCo.,Ltd.:pnH510MH:pvr-CF:rvnGigabyteTechnologyCo.,Ltd.:rnH510MH:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:
  dmi.product.family: H510 MB
  dmi.product.name: H510M H
  dmi.product.sku: Default string
  dmi.product.version: -CF
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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