Monthly Archives: February 2020

Install Ubuntu-18.04 on a NVMe disk

The price of NVMe disk getting closer or similar to SSD, most recent servers have only NVMe disks.

Unfortunately, installing Ubuntu-18.04 on such server triggers the error

Validation error: 'nvme.XXXXXX' is not valid under any of the given schemas in [...]

This issue has been fixed in but is not yet backported on 18.04.3

If, you need to install 18.04, because for example of the NVIDIA driver support, the fix is to:

  1. flash a usb dongle with ubuntu-18.04
  2. after booting on the usb dongle, go to a terminal with Alt+F2 and enter
    sudo snap refresh --edge subiquity
  3. next, go back to main screen with Alt+F1 and start the installation.


Hopefully, 18.04.4 should have the patch.