Ubuntu LPAR reinstallation fails with CurtinInstallError during partitioning

Content

Linux Releases Affected

Ubuntu26.04 or later

IBM Systems Affected

All Power10 and Power11 systems that run on firmware FW1060.20 or later.

Symptoms

Installation of Ubuntu 26.04 on a new disk fails when another disk in the system already contains an Ubuntu 26.04 installation. The failure occurs during the partitioning stage (curtin block‑meta), and the installer terminates with a CurtinInstallError.

Observed error excerpt:

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

Workaround

Install Ubuntu without using the Logical Volume Manager (LVM) and wiping the disk that already contains Ubuntu 26.04 before retrying the installation can prevent this issue.

Fix Outlook and mirrored Ubuntu bug

Launchpad (Ubuntu) bug: LP2140453

I/O device impacted

None