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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: siemens.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM9PR10MB4869.EURPRD10.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: ae234b03-4d8e-4dc2-8729-08daa83331ee X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Oct 2022 07:11:46.0548 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 38ae3bcd-9579-4fd4-adda-b42e1495d55a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 2nm0U0q5qtmyRzvdVroS1vxc2W9hQ63EUJXCa40416PukYBsMCRMaxyQ2FA9StwqMHa0FvmkGImmXt5/I3sqKgMyW8RGsBTwZQhHwlvo+NY= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM7PR10MB3720 X-TUID: Qzr+a1oT4wWk > From: Schild, Henning (T CED SES-DE) > Sent: Thursday, October 6, 2022 9:23 PM > To: Moessbauer, Felix (T CED SES-DE) > Cc: isar-users@googlegroups.com; Gylstorff, Quirin (T CED SES-DE) > ; Schmidl, Tobias (T CED SES-DE) > ; Kiszka, Jan (T CED) > Subject: Re: Bug: machine id is never generated >=20 > Am Thu, 21 Jul 2022 17:41:07 +0200 > schrieb "Moessbauer, Felix (T CED SES-DE)" > : >=20 > > Hi, > > > > when booting plain ISAR images (with Debian11), the "/etc/machine-id" > > is never generated. This breaks a couple of services that depend on > > having the id. An example is the systemd-networkd with DHCP, leading > > to error messages like this one (and breaking networking): > > > > systemd-networkd[277]: enp8s0: DHCP6 CLIENT: Failed to set > > identifier: No such file or directory >=20 > Seems that can also cause issues for NetworkManager where one can loose t= he > network when a lease expires and a renew is due. I hope that > https://eur01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgithu= b.co > m%2Filbers%2Fisar%2Fcommit%2F693d76b8c06af&data=3D05%7C01%7Cfeli > x.moessbauer%40siemens.com%7C16b5eb33d35940dc0ad408daa79ddb88%7C > 38ae3bcd95794fd4addab42e1495d55a%7C1%7C0%7C638006593671503174%7 > CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI > 6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3DBAsqAoyxq1bY > T%2BWBFBgLj9v4phYSe%2Bkppqv%2BpLtajUg%3D&reserved=3D0 fixed that > but just drop the error message here for completeness. >=20 > NetworkManager[526]: [1665061214.9410] /etc/machine-id: no valid > machine-id. Use fake one based on secret-key: ... Hi Henning, yes, that's a typical pattern we see when the /etc/machine-id i= s not available. But do you want to report a bug, or what is the intention of the statement = from above? The missing /etc/machine-id is fixed by the mentioned commit. Did you try a build including this patch? Felix >=20 > Henning >=20 > > The error can manually be fixed by running "systemd-machine-id-setup", > > but this obviously does not work in embedded scenarios. > > > > The root cause could be that /etc is read-only mounted when the > > first-boot-complete.target is reached. At least the logs indicate > > this: > > > > journalctl --grep machine --no-pager > > -- Journal begins at Thu 2022-07-21 15:07:21 UTC, ends at Thu > > 2022-07-21 15:35:20 UTC. -- Jul 21 15:07:21 test-image systemd[1]: > > System cannot boot: Missing /etc/machine-id and /etc is mounted > > read-only. Jul 21 15:07:21 test-image systemd[1]: 1) /etc/machine-id > > exists and is populated. Jul 21 15:07:21 test-image systemd[1]: 2) > > /etc/machine-id exists and is empty. Jul 21 15:07:21 test-image > > systemd[1]: 3) /etc/machine-id is missing and /etc is writable. Jul > > 21 15:07:24 test-image systemd[1]: Condition check resulted in Commit > > a transient machine-id on disk being skipped. > > > > Maybe Quirin knows more, as he implemented the postproc removal in > > 8b5e3f9. IIRC Jan also mentioned something that "rw" has to be added > > to the kernel cmdline, but this looks like a workaround as well. For > > the sake of completeness: > > > > cat /proc/cmdline > > initrd=3D\initrd.img-5.10.0-16-amd64 LABEL=3DBoot > > root=3DPARTUUID=3D9ad286e9-8df8-42c2-ac7d-0f2d7387d03d rootwait > > console=3Dtty0 console=3DttyS0,115200 > > > > IMO this is a pretty critical bug as it affects a ton of images. > > > > Best regards, > > Felix > > > > -- > > Siemens AG, Linux Expert Center > > Otto-Hahn-Ring 6, 81739 M=FCnchen, Germany > >