mantic-live-server-s390x ISOs (serial: 20230918) are failing to install, as subiquity crashes with the error reported at the end of this message. By jumping to a shell in the installer live system, I found of that the culprit is grep-status failing to run: root@ubuntu-server:/# grep-status *** stack smashing detected ***: terminated Aborted (core dumped) What we expect is: $ grep-status grep-status: unexpected end of filter. From the test history I can tell that ISOs with serials: * Up to 20230915 are working * From 20230916 up to (at least) 20230918 are failing. -------------------- 2023-09-18 11:59:52,651 DEBUG subiquitycore.utils:132 arun_command ['grep-status', '--whole-pkg', '-FProvides', 'linux-image', '--and', '-FStatus', 'installed', '--show-field=Package', '--no-field-names', '/target/var/lib/dpkg/status'] exited with code -6 2023-09-18 11:59:52,651 ERROR root:30 finish: subiquity/Install/install/curtin_install: FAIL: Command '['grep-status', '--whole-pkg', '-FProvides', 'linux-image', '--and', '-FStatus', 'installed', '--show-field=Package', '--no-field-names', '/target/var/lib/dpkg/status']' died with <Signals.SIGABRT: 6>. 2023-09-18 11:59:52,651 DEBUG subiquity.common.errorreport:394 generating crash report 2023-09-18 11:59:52,695 INFO subiquity.common.errorreport:415 saving crash report 'install failed crashed with CalledProcessError' to /var/crash/1695038392.651862621.install_fail.crash 2023-09-18 11:59:52,695 ERROR root:30 finish: subiquity/Install/install: FAIL: Command '['grep-status', '--whole-pkg', '-FProvides', 'linux-image', '--and', '-FStatus', 'installed', '--show-field=Package', '--no-field-names', '/target/var/lib/dpkg/status']' died with <Signals.SIGABRT: 6>. 2023-09-18 11:59:52,695 INFO root:30 start: subiquity/ErrorReporter/1695038392.651862621.install_fail/add_info: 2023-09-18 11:59:52,699 ERROR subiquity.server.server:415 top level error Traceback (most recent call last): File "/snap/subiquity/5108/lib/python3.10/site-packages/subiquity/server/controllers/shutdown.py", line 74, in _wait_install await self.app.controllers.Install.install_task subprocess.CalledProcessError: Command '['grep-status', '--whole-pkg', '-FProvides', 'linux-image', '--and', '-FStatus', 'installed', '--show-field=Package', '--no-field-names', '/target/var/lib/dpkg/status']' died with <Signals.SIGABRT: 6>. 2023-09-18 11:59:52,701 ERROR subiquity.server.server:415 top level error Traceback (most recent call last): File "/snap/subiquity/5108/lib/python3.10/site-packages/subiquity/server/controllers/shutdown.py", line 74, in _wait_install await self.app.controllers.Install.install_task subprocess.CalledProcessError: Command '['grep-status', '--whole-pkg', '-FProvides', 'linux-image', '--and', '-FStatus', 'installed', '--show-field=Package', '--no-field-names', '/target/var/lib/dpkg/status']' died with <Signals.SIGABRT: 6>.