There is another user reporting the same problem with a Samsung 950 Pro
M.2 2280 512gb PCIe 3.0 SSD MZ-V5P512BW:

https://wiki.raptorcs.com/wiki/User:Tle

** Description changed:

  I am booting an Ubuntu Server 19.10 image (ubuntu-19.10-live-server-
- ppc64el.iso downloade Jan 18, 2020) on a DVD to install Ubuntu on a
+ ppc64el.iso downloaded Jan 18, 2020) on a DVD to install Ubuntu on a
  RaptorCS Blackbird with an IBM Power9 CPU (ppc64el/ppc64le architecture)
- with an Samsung 970 EVO Plus M.2 SSD attached via an PCIe v4 adapter
- card.
+ and a Samsung 970 EVO Plus M.2 SSD attached via an PCIe v4 adapter card.
  
  The installer does recognize the NVME initially but when the
  installation finally starts it does no longer recognize the path to the
  NVMe and says:
  
  Error: Could not stat device /dev/disk/by-id/wwn-eui.0025... - No such file 
or directory
  ...
  An error occured handling 'disk-nvme0n1': OSError - [Errno Failed to find 
device at path: %s] /dev/disk/by-id/wwn-eui.0025...
  ...
  Traceback:
  ...
  File 
"/snap/subiquity/1286/lib/python3.6/site-packages/curtin/commands/block_meta.py",
 line 182, in devsync
  
  This possible bug was also reported for Intel architecture:
  https://egevig.org/linux/installing-ubuntu-server-19-10-on-intel-nuc
  
- 
  Current workaround:
  
  Follow the installer until you have specified the partitions but do not
  yet hit Done to apply this workaround:
  
  - Press Ctrl+Alt+F2 to enter a console outside of the installation
  program.
  
  - If you are not already in a root shell: Login with the user created
  earlier in the installation process
  
- - Find out your SSD ID
-   /dev/disk/by-id/
+ - Find out your SSD ID show as folder under
+   /dev/disk/by-id/
  
  - Create a symbolic link to your SSD (try with and without "nvme-" and
  prefix, eg. "nvme-eui.0025... and "eui.0025...":
  
-     # If you have more than one NVMe SSD you may have to change device number 
eg. to <code>/dev/nvme0n2</code> for the second SSD...
-     sudo ln -s /dev/nvme0n1 /dev/disk/by-id/wwn-eui.0025...
+     # If you have more than one NVMe SSD you may have to change device number 
eg. to /dev/nvme0n2 for the second SSD...
+     sudo ln -s /dev/nvme0n1 /dev/disk/by-id/wwn-eui.0025...
  
  - Exit the shell by pressing Ctrl+D or typing exit.
  
  - Switch back to the installer using Ctrl+Alt+F1.
  
  - Now choose "Done" to apply and use the partitions. The installer will
  continue the installation on this NVME now.

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https://bugs.launchpad.net/bugs/1866535

Title:
  Ubuntu Server 19.10 installer uses wrong NVMe path for Samsung 970 EVO
  Plus M.2 SSD (could not stat device - failed to find device at path)

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