I see the following messages on booting. My system works fine. I have disabled the plymouth theme and I am using text boot only
udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:10 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:12 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:14 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:17 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:19 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:21 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:23 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:26 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:28 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:30 ^M udevd[343]: SYSFS{}= will be removed in a future udev version, please use ATTR{}= to match the event device, or ATTRS{}= to match a parent device, in /etc/udev/rules.d/80-canon_mfp.rules:32
udev rules for your cannon printer. If you open
You will see where it wants to substitute SYSFS{} for ATTRS{}