mdadm & Intel RSTe

[Jean De Gyns <Jean.DeGyns@memnon.com>]

Hi Gents,

I recently ran into two problems when installing Debian 9.1 on a system with a fake intel raid10 using mdadm.

1°) During the disk detection step, the raid array doesn't get activated properly.

A simple work around is to fall back into a console and run "mdadm --run /dev/mdXX" allowing installer to complete its work.

2°) After the setup, the system would not detect the raid array and drop into a busybox.

The initrd image lacks the efivars module and it seems to prevent mdadm to detect that the controller had IMSM capabilities.

In the busybox, without the efivars, mdadm --detail-platform outputs :

mdadm: imsm capabilities not found for controller: /sys/devices/pci0000:00/0000:00:11.4 (type SATA)
mdadm: imsm capabilities not found for controller: /sys/devices/pci0000:00/0000:00:1f.2 (type SATA)

In the busybox, with the efivars, mdadm --detail-platform outputs :

mdadm: imsm capabilities not found for controller: /sys/devices/pci0000:00/0000:00:1f.2 (type SATA)
       Platform : Intel(R) Rapid Storage Technology enterprise
        Version : 4.6.0.1018
    RAID Levels : raid0 raid1 raid10 raid5
    Chunk Sizes : 4k 8k 16k 32k 64k 128k
    2TB volumes : supported
      2TB disks : supported
      Max Disks : 8
    Max Volumes : 2 per array, 4 per controller
 I/O Controller : /sys/devices/pci0000:00/0000:00:11.4 (SATA)
          Port3 : /dev/sdd (DV71660DX1150MGN)
          Port1 : /dev/sdb (DV716607ZL150MGN)
          Port2 : /dev/sdc (DV71700DSE150MGN)
          Port0 : /dev/sda (DV71660DVA150MGN)

I would like to file a bugreport but I don't know for which package I should file each bug.

1°) disk-detect ?
2°) mdadm ?

Thanks for your wisdom.

Best,

--
Jean De Gyns