Public bug reported:
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.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
Status: New
** Tags: architecture-ppc64le bugnameltc-217285 severity-high
targetmilestone-inin2604
** Tags added: architecture-ppc64le bugnameltc-217285 severity-high
targetmilestone-inin2604
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https://bugs.launchpad.net/bugs/2140453
Title:
[Ubuntu26.04] [FW1110] : Reinstallation on Ubuntu Lpar crashed with
"partitioning crashed with CurtinInstallError"!
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