On 11/28/2016 03:39 PM, Wols Lists wrote: > I did say IME :-) (-: >> Most modern systems have two copies of mdadm.conf. One in the initramfs >> so you can boot a root filesystem that is inside an array, and the other >> in your root filesystem to assemble everything else. > > Mine don't appear to have any ... and when I've tried to create one, it > was ignored. Of course, that doesn't rule out incompetence on my part > :-) But it means the defaults are perfectly okay for me :-) and probably > most people most of the time ... If you create an mdadm.conf file, and *don't* put it in your initramfs, and are using a distro that assembles in the initramfs, your mdadm.conf file will be ignored *during* *boot*. But then used any other time after boot. If you just left it there, the next kernel upgrade or package that triggered a new initramfs would have picked it up. And "magically" applied those array numbers on your next boot. > I think I created several of my arrays as md0/1/2. And they stayed that > way for a little while before deciding to renumber. Sounds like your distro changed its initramfs around that time. Phil -- 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
