Installation Destination does not contain retired RAID mdmember

[Rtoax]

Situation

I have a SSD(Before it was RAID mdmember), SATA interface, ctrl+alt+f2 journalctl shows:

Anaconda.Modules.Storage[1803]: DEBUG:blivet:lsblk output:                         
Anaconda.Modules.Storage[1803]: NAME                 SIZE OWNER GROUP MODE       FSTYPE          LABEL    UUID                                 PARTUUID                             MOUNTPOINT
Anaconda.Modules.Storage[1803]: loop0           708427776 root  disk  brw-rw---- squashfs
Anaconda.Modules.Storage[1803]: loop1          4294967296 root  disk  brw-rw---- ext4            Anaconda ed3f02bb-eaca-419f-ad64-d42b09574bee
Anaconda.Modules.Storage[1803]: |-live-rw      4294967296 root  disk  brw-rw---- ext4            Anaconda ed3f02bb-eaca-419f-ad64-d42b09574bee                                      /
Anaconda.Modules.Storage[1803]: `-live-base    4294967296 root  disk  brw-rw---- ext4            Anaconda ed3f02bb-eaca-419f-ad64-d42b09574bee
Anaconda.Modules.Storage[1803]: loop2         34359738368 root  disk  brw-rw---- DM_snapshot_cow
Anaconda.Modules.Storage[1803]: `-live-rw      4294967296 root  disk  brw-rw---- ext4            Anaconda ed3f02bb-eaca-419f-ad64-d42b09574bee                                      /
Anaconda.Modules.Storage[1803]: sda           31004295168 root  disk  brw-rw----
Anaconda.Modules.Storage[1803]: `-sda1        31003246592 root  disk  brw-rw---- vfat            2108     8EB3-ABA8                            07d3b670-01                          /run/install/     repo
Anaconda.Modules.Storage[1803]: sdb         1000204886016 root  disk  brw-rw---- ddf_raid_member          LSI     \x10

However, There no sdb shows on Anaconda GUI Installation Destination window.

Detail

I have two ssd

       User space

+-----------------------------+

        Linux Kernel

+-----------------------------+

   +----------------------+
   |       RAID 0         |
   |                      |
   |                      |
   | +-------+  +-------+ |
   | |       |  |       | |
   | |  SSD1 |  | SSD2  | |
   | |       |  |       | |
   | +-------+  +-------+ |
   +----------------------+

Now, SSD1 just retired from RAID0 arrry, I want to use SSD1 as a normal SSD:

+-----------------------------------+
| Installation Destination          |
|  +--------+                       |
|  |        |   ????????????        |
|  |  USB   |   No SSD1 show        |
|  |        |   ????????????        |
|  +--------+                       |
|                                   |
|                                   |
|                                   |
+-----------------------------------+

  Boot from bootable USB Device
  (RHEL/Fedora maybe, based anaconda)
+-----------------------------------+

     +---------+   +---------+
     |         |   |         |
     |  SSD 1  |   |   USB   |
     |         |   |         |
     +---------+   +---------+

If ctrl+alt+F2, lsblk could see SSD1.

Idea

Should we support retired RAID mdmember during Installation Destination?

[Rtoax]

If i apply this patch, sdb shows on GUI Installation Destination window, but size is zero.

diff --git a/pyanaconda/modules/storage/devicetree/model.py b/pyanaconda/modules/storage/devicetree/model.py
index 38aa16a6b0a5..3d24afbf9a86 100644
--- a/pyanaconda/modules/storage/devicetree/model.py
+++ b/pyanaconda/modules/storage/devicetree/model.py
@@ -397,6 +397,8 @@ class InstallerStorage(Blivet):
                     disks.append(d)
                 elif d.size > 0 and d.media_present:
                     disks.append(d)
+            elif d in self.mdmembers:
+                disks.append(d)
 
         # Remove duplicate names from the list.
         return sorted(set(disks), key=lambda d: d.name)

It's just a workground, there are too much work to do(i guess, suppose).