Comment 10 for bug 1635181

I had the same experience as #8 and #9.

Some hours wasted troubleshooting why the kernel didn't have expected options, only to find "curtin the culprit", which led me to this bug report.

Here's the kicker - I didn't even have curtin installed! Why is the config file still present on the system?

# dpkg --list '*curtin*'
dpkg-query: no packages found matching *curtin*
# dpkg -S 50-curtin-settings.cfg
dpkg-query: no path found matching pattern *50-curtin-settings.cfg*
#
# grep curtin /var/lib/dpkg/info/*
# ls /etc/default/grub.d/50-curtin-settings.cfg
/etc/default/grub.d/50-curtin-settings.cfg

I suggest 'update-grub' at least report when variables are overrriden and where.