GRUB displays Error: Disk filter writes are not supported

Affected Distributions

  • Ubuntu Server 14.04 LTS


This problem occurs when the system is configured to use software RAID.


To work around this issue, perform the following steps:

  1. Open the file /etc/grub.d/10_linux in an editor

  2. Disable the quick_boot option by setting it to zero:


  3. Update the GRUB boot loader:

    $ sudo update-grub