Can't install 18.04 on top of imsm raid

[Andrey Grebennikov]

I'm installing 18.04.2 on top of Supermicro server with Intel software RAID controller.
The logical disk is created on top of 2 physical devices as RAID1, but subiquity recognizes underlaying disks only. The OS itself shows mdraid device created on top of 2 physicals (per lsblk).

If I use the iso with Ubiquity (ubuntu server 18.04.2) - there is a step before configuring the partitions "activate software RAID" or something, and it is able to create partitions straight on top of the software raid handled by the motherboard controller.

[Michael Hudson-Doyle (mwhudson)]

To be clear, this is more "firmware raid" (i.e. imsm) than software raid, right? If so, it's on the list to be fixed before 19.04.

[Andrey Grebennikov (agrebennikov)]

Well, that's what is integrated into intel's motherboard. The major difference with the normal raid cards is that I can still see the physical devices in the OS, as well as mdraid device created by the controller.
Is it somehow appear in the roadmap list? So that I can prove it to the customer.
Thanks!

[Michael Hudson-Doyle (mwhudson)]

Yes, that's the thing I mean. It is going to be fixed as part of the "reusing existing partitions" roadmap item.

[Andrey Grebennikov (agrebennikov)]

Perfect. Thank you so much for this!

[Jeff Lane  (bladernr)]

@mwhudson was this fixed and the bug not updated?

[Michael Hudson-Doyle (mwhudson)]

I think this bug is fixed yes, but I can't test it myself and I haven't heard any reports back. If someone can test it, I'd happy close it!