DDF RAID arrays are not automatically assembled by mdadm during boot. The udev rules shipped with mdadm automatically assemble both normal MD RAID arrays and Intel Matrix Storage (IMSM) arrays, but not DDF arrays. Proposed fix is to add these two lines to the rules shipped by mdadm in Fedora: SUBSYSTEM=="block", ACTION=="add", ENV{ID_FS_TYPE}=="ddf_raid_member", \ RUN+="/sbin/mdadm -I $env{DEVNAME}" This is already present on RHEL[1] so it should be safe to include in Fedora. This change is needed for the proposed Fedora 38 change[2] to switch from dmraid to mdadm when handling DDF arrays during installation. Note that assembling DDF arrays is currently broken with kernel 6.2[3] so this is blocked until the kernel issue is solved. [1] https://gitlab.com/redhat/centos-stream/rpms/mdadm/-/commit/d5146fa1c9ac362b2e06b331600cf7acc99722ad [2] https://fedoraproject.org/wiki/Changes/UseMdadmForBIOSRAIDInAnaconda [3] https://bugzilla.redhat.com/show_bug.cgi?id=2158730
This bug appears to have been reported against 'rawhide' during the Fedora Linux 38 development cycle. Changing version to 38.