Problem enabling transient /etc in fedora-based bootc image: ostree-prepare-root.service failed

[maringuyot]

Hello,

I am trying to enable transient /etc in my bootc image build, however it doesn't seem to work.

I have followed the documentation, and implemented the example from the gitlab repository, as well as read a bunch of issues/discussions more or less relating to my problem.

Here is my Containerfile:

FROM quay.io/fedora/fedora-bootc AS debug

COPY root /

RUN set -x; kver=$(cd /usr/lib/modules && echo *); dracut -vf /usr/lib/modules/$kver/initramfs.img $kver

My local root/ directory contains the ostree configuration (with transient etc enabled) and a few configuration files relating to the creation of a development user, including an authorized ssh key, sysusers.d file and a systemd unit responsible for chowning the developer's home directory.

I generate the base install image using bootc-image-builder, with the qcow2 format, and run the VM using virt-manager.

Upon launch, my VM enters recovery mode, and the generated /run/initramfs/rdsosreport.txt file doesn't seem to contain any useful information (at first glance).

Here's a screenshot of the VM:

Journal logs show that the "ostree-prepare-root" service has failed; it can't seem to create the /run/os directory:

Going back to the Containerfile build, dracut seems to have an error, but generates the initramfs image anyways:

dracut[E]: No '/dev/log' or 'logger' included for syslog logging
dracut[I]: Executing: /usr/bin/dracut -vf /usr/lib/modules/6.15.6-200.fc42.x86_64/initramfs.img 6.15.6-200.fc42.x86_64
dracut-install: ERROR: installing '/root'
dracut[E]: FAILED: /usr/lib/dracut/dracut-install -D /var/tmp/dracut.xHgUgV/initramfs -f /root

This is a very strange bug, and as far as I know does not seem to come from my configurations. Hopefully that's not true :).

Any help is greatly appreciated, thanks in advance!

[cgwalters]

We're going to fix this soon, it is a recent regression ostreedev/ostree#3476

[maringuyot]

Thanks for your answer, I see the fix has been merged, when will the changes be integrated in rpm-ostree and then bootc?