Hardcore Linux

Anything about Ubuntu, Centos, openSuSe and Fedora

error: Diskfilter writes are not supported Ubuntu 14.04

After a clean install or upgrade from 12.04 to 14.04 on raid or lvm setup, normally you will encounter this error, which is related to the setup I mentioned. From various test, I encounter a workaround to fix this error.

Modify /etc/grub.d/10_linux 

Replace quick_boot=1 with quick_boot=0

Done.

3 responses to “error: Diskfilter writes are not supported Ubuntu 14.04

  1. Jens November 9, 2014 at 1:58 am

    Done? No need to re-install grub or something like that?

  2. Luke M September 6, 2015 at 5:48 pm

    Hi
    The general consensus seems to be that setting quick_boot=0 is not recommended as is disables far more than the diskfilter write error.
    Following the link provided by Jen above: http://askubuntu.com/questions/468466/why-this-occurs-error-diskfilter-writes-are-not-supported,
    will take you to an alternative solution which is no more taxing than the one suggested here. Just download a new grub header file and run update-grub.
    Cheers LGM

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