[Bug 2140453] Re: [Ubuntu26.04] [FW1110] : Reinstallation on Ubuntu Lpar crashed with "partitioning crashed with CurtinInstallError"!

Frank Heimes 2140453 at bugs.launchpad.net
Thu Feb 5 11:41:20 UTC 2026 

** Also affects: ubuntu-power-systems
   Importance: Undecided
       Status: New

** Changed in: ubuntu-power-systems
     Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)

** Changed in: subiquity (Ubuntu)
   Importance: Undecided => High

** Changed in: ubuntu-power-systems
   Importance: Undecided => High

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to subiquity in Ubuntu.
https://bugs.launchpad.net/bugs/2140453

Title:
  [Ubuntu26.04] [FW1110] : Reinstallation on Ubuntu Lpar crashed with
  "partitioning crashed with CurtinInstallError"!

Status in The Ubuntu-power-systems project:
  New
Status in subiquity package in Ubuntu:
  New

Bug description:
  HOST ENV:
  OS : Ubuntu26.04

  I installed ubuntu26.04 some days ago, I tried doing reinstallation on
  the same lpar  and it is crashing with the following crash. This
  installation I tried with latest iso present in the daily builds.

  
  2026-02-05 01:31:28,011 ERROR root:38 finish: subiquity/Install/install/curtin_install/run_curtin_step/cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin command block-meta
  2026-02-05 01:31:28,011 ERROR root:38 finish: subiquity/Install/install/curtin_install/run_curtin_step/cmd-install/stage-partitioning/builtin: FAIL: running 'curtin block-meta simple'
  2026-02-05 01:31:28,011 ERROR root:38 finish: subiquity/Install/install/curtin_install/run_curtin_step/cmd-install/stage-partitioning: FAIL: configuring storage
  2026-02-05 01:31:29,037 ERROR root:38 finish: subiquity/Install/install/curtin_install/run_curtin_step: FAIL:
  2026-02-05 01:31:29,037 ERROR root:38 finish: subiquity/Install/install/curtin_install: FAIL:
  2026-02-05 01:31:29,041 INFO subiquity.common.errorreport:412 saving crash report 'partitioning crashed with CurtinInstallError' to /var/crash/1770255089.037806273.install_fail.crash
  2026-02-05 01:31:29,041 ERROR root:38 finish: subiquity/Install/install: FAIL:
  2026-02-05 01:31:29,041 INFO root:38 start: subiquity/ErrorReporter/1770255089.037806273.install_fail/add_info:
  2026-02-05 01:31:29,041 ERROR subiquity.server.server:535 top level error
  Traceback (most recent call last):
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/controllers/install.py", line 249, in run_curtin_step
      await run_curtin_command(
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/curtin.py", line 244, in run_curtin_command
      return await cmd.wait(input=input)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/curtin.py", line 125, in wait
      result = await self.runner.wait(self.proc, input=input)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/runner.py", line 112, in wait
      raise subprocess.CalledProcessError(
  subprocess.CalledProcessError: Command '['systemd-run', '--wait', '--same-dir', '--property', 'SyslogIdentifier=subiquity_log.9951', '--setenv', 'PATH=/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin:/snap/subiquity/7010/bin:/snap/subiquity/7010/sbin', '--setenv', 'PYTHONPATH=:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages:/snap/subiquity/7010/lib/python3.12/site-packages', '--setenv', 'PYTHON=/snap/subiquity/7010/usr/bin/python3.12', '--setenv', 'SNAP=/snap/subiquity/7010', '--', '/snap/subiquity/7010/usr/bin/python3.12', '-m', 'curtin', '--showtrace', '-vvv', '--set', 'json:reporting={"subiquity": {"type": "journald", "identifier": "curtin_event.9951.5"}}', '-c', '/var/log/installer/curtin-install/subiquity-partitioning.conf', 'install', '--set', 'json:stages=["partitioning"]', 'cp:///tmp/tmp_3tpd_zr/mount']' returned non-zero exit status 3.

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/controllers/shutdown.py", line 72, in _wait_install
      await self.app.controllers.Install.install_task
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquitycore/context.py", line 165, in decorated_async
      return await meth(self, **kw)
             ^^^^^^^^^^^^^^^^^^^^^^
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/controllers/install.py", line 642, in install
      await self.curtin_install(context=context, source=for_install_path)
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquitycore/context.py", line 165, in decorated_async
      return await meth(self, **kw)
             ^^^^^^^^^^^^^^^^^^^^^^
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/controllers/install.py", line 424, in curtin_install
      await run_curtin_step(
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/controllers/install.py", line 362, in run_curtin_step
      await self.run_curtin_step(
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquitycore/context.py", line 165, in decorated_async
      return await meth(self, **kw)
             ^^^^^^^^^^^^^^^^^^^^^^
    File "/snap/subiquity/7010/lib/python3.12/site-packages/subiquity/server/controllers/install.py", line 260, in run_curtin_step
      raise CurtinInstallError(stages=stages)
  subiquity.server.controllers.install.CurtinInstallError
  2026-02-05 01:31:29,043 INFO root:38 finish: subiquity/Meta/status_GET: SUCCESS: 200 {"state": "ERROR", "confirming_tty": "/dev/hvc0", "error": {"state": "INCOMPL...
  2026-02-05 01:31:29,043 INFO root:38 finish: subiquity/Meta/status_GET: SUCCESS: 200 {"state": "ERROR", "confirming_tty": "/dev/hvc0", "error": {"state": "INCOMPL...
  2026-02-05 01:31:29,047 INFO root:38 start: subiquity/Meta/status_GET:
  2026-02-05 01:31:29,049 INFO root:38 start: subiquity/Meta/status_GET:
  2026-02-05 01:31:29,062 INFO root:38 start: subiquity/Error/wait_GET:
  2026-02-05 01:31:29,065 INFO root:38 start: subiquity/Error/wait_GET:
  2026-02-05 01:31:29,250 INFO root:38 finish: subiquity/ErrorReporter/1770255089.037806273.install_fail/add_info: SUCCESS: written to /var/crash/1770255089.037806273.install_fail.crash
  2026-02-05 01:31:29,250 INFO root:38 finish: subiquity/Error/wait_GET: SUCCESS: 200 {"state": "DONE", "base": "1770255089.037806273.install_fail", "kind": "INSTA...
  2026-02-05 01:31:29,251 INFO root:38 finish: subiquity/Error/wait_GET: SUCCESS: 200 {"state": "DONE", "base": "1770255089.037806273.install_fail", "kind": "INSTA...
  2026-02-05 01:31:29,261 ERROR root:38 finish: subiquity/Install/install/curtin_install/run_curtin_step/cmd-install: FAIL: curtin command install
  2026-02-05 01:32:09,688 INFO root:38 start: subiquity/Meta/ssh_info_GET:
  2026-02-05 01:32:09,705 INFO root:38 finish: subiquity/Meta/ssh_info_GET: SUCCESS: 200 {"username": "installer", "password_kind": "KNOWN", "password": "8ScRxUzqE3a7...

  
  This is the disk I am installing on which already had ubuntu26.04

  sdb                         8:16   0   400G  0 disk
  |-sdb1                      8:17   0     8M  0 part
  |-sdb2                      8:18   0     2G  0 part
  `-sdb3                      8:19   0   398G  0 part
    `-ubuntu--vg-ubuntu--lv 252:0    0   100G  0 lvm

  This crash is happening when the installation process starts after
  choosing storage, giving username password.

  Attachment contains all the logs for the subiquity and curtin crash.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-power-systems/+bug/2140453/+subscriptions

More information about the foundations-bugs mailing list