Larkin Lowrey wrote: > The "spares=1" is for the journal device. The "mdadm --examine --scan" command produced that for me as well but since it seemed odd I deleted that part. Since there isn't actually a spare it seems incorrect. I've never tried to boot with "spares=1" so I don't know if removing it will make any difference. Yes, I tried that, seemed odd to me too, I also tried just: ARRAY /dev/md/test UUID=d59de5cc:02f560ed:ebcb9400:491955d7 Rudy Zijlstra wrote: > Did you update the initrd after creating the array? Yes. > Tobx wrote: >> I tried this with Debian Stretch (4.9.0-4), Debian Stretch (4.13.0-0) and Ubuntu 17.10 (4.13.0-16). > Tobx wrote: >> I compiled mdadm from source and tried again with: >> >> # mdadm --version >> mdadm - v4.0 - 2017-01-09 Song Liu wrote: > Your mdadm is a little old. Could you please try rebuild it from > latest source code? Do you have something newer? It always works without the journal option (except I set something very wrong of course) and also with the option, but then it never assembles automatically after reboot. I am testing everything in VMware mostly on a clean Debian installation. Might VMware be the problem? I have no other test system in place. Cheers, Tobi-- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html