Hi, On Tue, Feb 25, 2025 at 11:21:59AM +0000, Richard Purdie via lists.openembedded.org wrote: > On Thu, 2025-02-20 at 16:03 +0000, Alex Kiernan via lists.openembedded.org > wrote: > > On Thu, Feb 20, 2025 at 3:52 PM Vyacheslav Yurkov via > > lists.openembedded.org <uvv.mail=gmail....@lists.openembedded.org> > > wrote: > > > > > > From meta/classes-recipe/rootfs-postcommands.bbclass: > > > > > > # 20:12 < mezcalero> koen: you have three options: a) run > > > systemd-machine-id-setup at install time, b) have / read-only and an > > > empty file there (for stateless) and c) boot with / writable > > > touch ${IMAGE_ROOTFS}${sysconfdir}/machine-id > > > fi > > > > > > We could think of further improvements. One thing that comes to mind is > > > changing systemd-systemctl-native to systemd-tools-native and enable the > > > build of systemd-machine-id-setup. > > > > > > Slava > > > > > > > I do know that it was a horrible thing to get right when I rewrote the > > shell script in python (which I'm very glad to see the back of): > > > > # If we populate the systemd links we also create /etc/machine-id, which > > # allows systemd to boot with the filesystem read-only before generating > > # a real value and then committing it back. > > # > > # For the stateless configuration, where /etc is generated at runtime > > # (for example on a tmpfs), this script shouldn't run at all and we > > # allow systemd to completely populate /etc. > > > > It may be that this behaviour was wrong in some cases, but at the same > > time, I remember spending a lot of time getting this right! > > I just wanted to add that we've been seeing an odd failure on meta-arm on the > autobuilder: > > https://autobuilder.yoctoproject.org/valkyrie/#/builders/75/builds/1032 > > and when I did into this, I see this in the logs: > > [ 3.700441] systemd[1]: Hostname set to <sbsa-ref>. > [ 3.704040] systemd[1]: System cannot boot: Missing /etc/machine-id and > /etc is mounted read-only. > [ 3.704488] systemd[1]: Booting up is supported only when: > [ 3.705023] systemd[1]: 1) /etc/machine-id exists and is populated. > [ 3.705349] systemd[1]: 2) /etc/machine-id exists and is empty. > [ 3.705651] systemd[1]: 3) /etc/machine-id is missing and /etc is writable. > [ 10.206513] systemd[1]: Populated /etc with preset unit settings. > [ 13.034155] systemd[1]: Queued start job for default target Graphical > Interface. > [ 13.149568] systemd[1]: Created slice Slice /system/getty. > > We therefore need to fix the issue with machine-id before we can merge > this patch. I will drop it from master-next in the meantime due to this > issue.
I think option 2) should be simple. IMO this could also be done by image/rootfs classes or base-files when systemd is the init. Where is build https://autobuilder.yoctoproject.org/valkyrie/#/builders/75/builds/1032 adding "read-only-rootfs" to IMAGE_FEATURES? The failures log from step 22, full log in https://autobuilder.yoctoproject.org/valkyrie/api/v2/logs/1586278/raw_inline only shows issues with sshd server, which IMO is not installed to any of the built images. The builds are IMO missing IMAGE_FEATURES += "ssh-server-dropbear" which in meta-arm kas builds is set with ci/testimage.yml. Even the core-image-minimal tests are passing without any communication with target qemu machine: * ping.PingTest.test_ping with slirp pings localhost, not target machine * parselogs.ParseLogsTest.test_get_context doesn't talk with booted qemu machine How to get to the qemu boot log which shows the systemd errors above? I don't see the connection between the systemd error and the build above. I could propose patches to the issues if I can figure out where :/ Cheers, -Mikko
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