I get the same effect (mdadm does not start arrays), similar setup as Dominik (ata_piix, raid1), but apparently a different cause for the problem.
According to ps udevd is not started at all when mdadm bails out. If I start the udev start script manually the device nodes appear and the mdadm script can initialize the arrays. ** Changed in: initramfs-tools (Ubuntu) Status: Unconfirmed => Confirmed -- initramfs-tools script doesn't wait for device initialization, preventing mdadm to assemble md arrays https://bugs.launchpad.net/bugs/83025 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs