At [1][2] the periodic-tripleo-ci-centos-8-ovb-1ctlr_2comp-featureset020-train fails during repo setup/modify image (injecting repos into the deploy image) with trace that looks like (also fs35 at [3])
* 2023-05-10 12:35:31.637924 | primary | TASK [modify-image : Mount image] **********************************************
2023-05-10 12:35:31.637982 | primary | Wednesday 10 May 2023 12:35:31 +0000 (0:00:03.196) 0:09:15.541 *********
2023-05-10 12:35:32.976326 | primary | fatal: [undercloud]: FAILED! => {"changed": true, "cmd": "set -ex\nif type tripleo-mount-image >/dev/null; then\n tripleo-mount-image -a /home/zuul/overcloud-full.raw -m /tmp/tmp.b5XbFYcE6J\nelse\n # stable branches do not have tripleo-mount-image, and only use\n # partition images\n modprobe nbd\n if qemu-img info --output json /home/zuul/overcloud-full.raw |grep '\"format\": \"raw\"' ; then\n image_format='--format raw'\n elif qemu-img info --output json /home/zuul/overcloud-full.raw |grep '\"format\": \"qcow2\"' ; then\n image_format='--format qcow2'\n else\n image_format=''\n fi\n qemu-nbd $image_format --connect /dev/nbd0 /home/zuul/overcloud-full.raw\n mount /dev/nbd0 /tmp/tmp.b5XbFYcE6J\nfi\n", "delta": "0:00:00.114529", "end": "2023-05-10 12:35:32.811237", "msg": "non-zero return code", "rc": 32, "start": "2023-05-10 12:35:32.696708", "stderr": "+ type tripleo-mount-image\n/bin/sh: line 1: type: tripleo-mount-image: not found\n+ modprobe nbd\n+ qemu-img info --output json /home/zuul/overcloud-full.raw\n+ grep '\"format\": \"raw\"'\n+ image_format='--format raw'\n+ qemu-nbd --format raw --connect /dev/nbd0 /home/zuul/overcloud-full.raw\n+ mount /dev/nbd0 /tmp/tmp.b5XbFYcE6J\nmount: /tmp/tmp.b5XbFYcE6J: wrong fs type, bad option, bad superblock on /dev/nbd0, missing codepage or helper program, or other error.", "stderr_lines": ["+ type tripleo-mount-image", "/bin/sh: line 1: type: tripleo-mount-image: not found", "+ modprobe nbd", "+ qemu-img info --output json /home/zuul/overcloud-full.raw", "+ grep '\"format\": \"raw\"'", "+ image_format='--format raw'", "+ qemu-nbd --format raw --connect /dev/nbd0 /home/zuul/overcloud-full.raw", "+ mount /dev/nbd0 /tmp/tmp.b5XbFYcE6J", "mount: /tmp/tmp.b5XbFYcE6J: wrong fs type, bad option, bad superblock on /dev/nbd0, missing codepage or helper program, or other error."], "stdout": " \"format\": \"raw\",", "stdout_lines": [" \"format\": \"raw\","]}
* 2023-05-10 12:35:33.176489 | primary | "stderr": "+ type tripleo-mount-image\n/bin/sh: line 1: type: tripleo-mount-image: not found\n+ modprobe nbd\n+ qemu-img info --output json /home/zuul/overcloud-full.raw\n+ grep '\"format\": \"raw\"'\n+ image_format='--format raw'\n+ qemu-nbd --format raw --connect /dev/nbd0 /home/zuul/overcloud-full.raw\n+ mount /dev/nbd0 /tmp/tmp.b5XbFYcE6J\nmount: /tmp/tmp.b5XbFYcE6J: wrong fs type, bad option, bad superblock on /dev/nbd0, missing codepage or helper program, or other error.",
[1] https://logserver.rdoproject.org/openstack-periodic-integration-stable4/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-ovb-1ctlr_2comp-featureset020-train/16b7186/job-output.txt
[2] https://logserver.rdoproject.org/openstack-periodic-integration-stable4/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-ovb-1ctlr_2comp-featureset020-train/0c592ce/job-output.txt
[3] https://logserver.rdoproject.org/openstack-periodic-integration-stable4/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-ovb-3ctlr_1comp-featureset035-train/a3b5664/job-output.txt
Latest buildset didn't reproduce the error reported [1]. We will keep an eye on next runs before actually close this bug.
[1] https:/