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charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: OSYPR01MB5542.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 23723ea7-0b1e-4f00-c918-08d9c0684c56 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Dec 2021 07:47:23.8742 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f109924e-fb71-4ba0-b2cc-65dcdf6fbe4f X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: TQM2TvFJxysQ/MKF2y/5NUbArpV6jj4CsUcumj6lSKVI5norgg3kTxr5VtP9FQGWnnfTAvQ5cxZmRYZlwXNWOHg/4k5zmPzlQpVcpqvATwA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSBPR01MB3399 MSSCP.TransferMailToMossAgent: 103 X-OriginatorOrg: toshiba-tsip.com X-TUID: fHGAJpy7J/vS Hi, I am working to fix some reproducible build failures in isar system, as par= t of this I wanted to know some ideas to fix it. I am checking the reproducible failures as below: $ cd isar $ . isar-init-build-env build1 && bitbake mc:qemuamd64-buster-tgz:isar-ima= ge-base $ . isar-init-build-env build2 && bitbake mc:qemuamd64-buster-tgz:isar-ima= ge-base $ mkdir -p rootfs1 rootfs2 $ tar -xzvf ./build1/tmp/deploy/images/qemuamd64/isar-image-base-debian-bu= ster-qemuamd64.tar.gz -C ./rootfs1/ $ tar -xzvf ./build2/tmp/deploy/images/qemuamd64/isar-image-base-debian-bu= ster-qemuamd64.tar.gz -C ./rootfs2/ $ rsync -nrclv ./rootfs1/ ./rootfs2/ > difference.txt Below is one reproducible problem I picked: In debconf db file the contents were different after two subsequent builds, Part of the debconf db file where the difference is found (/var/cache/debco= nf/config.dat) Build1: Name: ucf/changeprompt Template: ucf/changeprompt Value: keep_current Owners: ucf Variables: BASENAME =3D locale.nopurge FILE =3D /etc/locale.nopurge NEW =3D /etc/locale.nopurge.29308 Build2: Name: ucf/changeprompt Template: ucf/changeprompt Value: keep_current Owners: ucf Variables: BASENAME =3D locale.nopurge FILE =3D /etc/locale.nopurge NEW =3D /etc/locale.nopurge.19132 The probable solution I am thinking of is: 1. remove the debconf cache files (rm -f /var/cache/debconf/*) 2. Fix the debconf in such a way it generates same package configuration on= every build The first solution is easy, but I am worried if those package configuration= files maybe required in future when the package is updating The second solution would need more investigation at debconf package side.= =20 Any ideas or suggestion would be very grateful. Thanks, Venkata.