Ubuntu
initramfs-tools package

  1. Bug #1481733
  2. Comment #10

Comment 10 for bug 1481733

Revision history for this message
Harry (harry33) wrote :

The correct workaround or fix for the time being is to downgrade the version 0.120ubuntu1 to the working version 0.103ubuntu16.

You will need to chroot the root partition to do this.
I believe package intel-microcode has nothing to with this.