I explained slightly wrong, since my memory was vague. The old mdadm 2.7.1 in ubuntu probably makes the map file ok, but it won't get carried across onto the rootfs. mdadm 3.1.2 wanted to place the map file in a different location and failed. my solution at the time was to change the location, and then copy it over to the rootfs once it is mounted. an easier solution (and the default with upstream mdadm 3.1.4) is to use /dev/.mdadm for the map file. as the devices is carried over to the rootfs from the initramfs, this works better.
-- initramfs missing /var/run/mdadm/ dir (loosing state, race, misconfig) https://bugs.launchpad.net/bugs/550131 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
