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

[Dimitri John Ledkov]

based on multipath & installer logs things look okish.

nvme0n1 & nvme2n1 is multipathed Force MP600 NVMe drive
eui.6479a73730830210, which is assembled into mpatha drive (also dm-0)

nvme1n1 is another NVMe drive Seagate FireCuda 520 SSD ZP2000GM30002
eui.0024cf01540022a8

sdc is the usb stick with Ubuntu Server installer

sda is WDC_WD141KRYZ-01, serial 9RJRELZC

sdb is WDC_WD141KRYZ-01, serial 9RJRTXYC

The probert data correctly shows multipath device.

I have the expectation that the installer should have offered the
multipathed NVMe, non-multipath NVMe, and the sda / sdb drives for
install. Thus you should have seen the two euid's and the two serial
numbers for installation.

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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
Status in curtin source package in Hirsute:
  New
Status in multipath-tools source package in Hirsute:
  New
Status in probert source package in Hirsute:
  New
Status in subiquity source package in Hirsute:
  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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