So I was trying to flip on the RAID journal now I'd fully populated my array and cut over to it. So, from early userspace, I did # first line done by initramfs scripting /sbin/mdadm --assemble --scan --auto=md --freeze-reshape mdadm --misc --readonly /dev/md/fast mdadm --manage /dev/md/fast --add-journal /dev/ssd1 mdadm --misc --readwrite /dev/md/fast This did not work as planned, or indeed at all. After the first --readonly, all requests for /dev/md/fast report "No such device or address" until a reboot, though /proc/mdstat says the thing is still there and /sys/block/md125/dev reports no change in major/minor numbers. (I don't have udev in my early-userspace environment, but mdev reports no change, either.) It's a bit hard to do anything else after that, like, say, turn the journal on. ... maybe an mdadm --assemble --scan --auto=md --readonly in one go would work better, rather than starting with the default (?read-mostly?) and flipping it? I'll give that a try later. -- 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
