[Bug 1902855] Re: two identical disks are only offered as a multipath device

[Christian Ehrhardt ]

So here we see multipath is indeed considering it to be one disk:

mpatha (eui.6479a73730830210) dm-0 NVME,Force MP600                             
size=932G features='0' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=0 status=active
| `- 0:1:1:1 nvme0n1 259:0 active undef running
`-+- policy='service-time 0' prio=0 status=enabled
  `- 2:1:1:1 nvme2n1 259:2 active undef running

** Bug watch added: bugs.centos.org/ #16893
   https://bugs.centos.org/view.php?id=16893

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https://bugs.launchpad.net/bugs/1902855

Title:
  two identical disks are only offered as a multipath device

Status in curtin package in Ubuntu:
  New
Status in multipath-tools package in Ubuntu:
  New
Status in probert package in Ubuntu:
  New
Status in subiquity package in Ubuntu:
  New

Bug description:
  two identical SSDs are only offered as a multipath device in the
  server installer, not as single devices. The install succeeds, however
  the following boot falls back to the initramfs because the volume
  group cannot be found. Same hardware configuration as in LP: #1902845.

  blacklisting the dm_multipath module on the installer boot,  shows the
  two disks, however the installer later fails because the multipath and
  multipathd commands fail.

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