suppressed udev warning about unknown kvm group

recipes-core/udev/eudev/50-udev-default.rules

+# do not edit this file, it will be overwritten on update
+
+# run a command on remove events
+ACTION=="remove", ENV{REMOVE_CMD}!="", RUN+="$env{REMOVE_CMD}"
+ACTION=="remove", GOTO="default_end"
+
+SUBSYSTEM=="virtio-ports", KERNEL=="vport*", ATTR{name}=="?*", SYMLINK+="virtio-ports/$attr{name}"
+
+# select "system RTC" or just use the first one
+SUBSYSTEM=="rtc", ATTR{hctosys}=="1", SYMLINK+="rtc"
+SUBSYSTEM=="rtc", KERNEL=="rtc0", SYMLINK+="rtc", OPTIONS+="link_priority=-100"
+
+SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", IMPORT{builtin}="usb_id", IMPORT{builtin}="hwdb --subsystem=usb"
+ENV{MODALIAS}!="", IMPORT{builtin}="hwdb --subsystem=$env{SUBSYSTEM}"
+
+ACTION!="add", GOTO="default_end"
+
+SUBSYSTEM=="tty", KERNEL=="ptmx", GROUP="tty", MODE="0666"
+SUBSYSTEM=="tty", KERNEL=="tty", GROUP="tty", MODE="0666"
+SUBSYSTEM=="tty", KERNEL=="tty[0-9]*", GROUP="tty", MODE="0620"
+SUBSYSTEM=="tty", KERNEL=="sclp_line[0-9]*", GROUP="tty", MODE="0620"
+SUBSYSTEM=="tty", KERNEL=="ttysclp[0-9]*", GROUP="tty", MODE="0620"
+SUBSYSTEM=="tty", KERNEL=="3270/tty[0-9]*", GROUP="tty", MODE="0620"
+SUBSYSTEM=="vc", KERNEL=="vcs*|vcsa*", GROUP="tty"
+KERNEL=="tty[A-Z]*[0-9]|ttymxc[0-9]*|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*", GROUP="dialout"
+
+SUBSYSTEM=="mem", KERNEL=="mem|kmem|port", GROUP="kmem", MODE="0640"
+
+SUBSYSTEM=="input", GROUP="input"
+SUBSYSTEM=="input", KERNEL=="js[0-9]*", MODE="0664"
+
+SUBSYSTEM=="video4linux", GROUP="video"
+SUBSYSTEM=="graphics", GROUP="video"
+SUBSYSTEM=="drm", KERNEL!="renderD*", GROUP="video"
+SUBSYSTEM=="dvb", GROUP="video"
+SUBSYSTEM=="media", GROUP="video"
+SUBSYSTEM=="cec", GROUP="video"
+
+SUBSYSTEM=="drm", KERNEL=="renderD*", GROUP="video", MODE="0666"
+SUBSYSTEM=="kfd", GROUP="video", MODE="0666"
+
+SUBSYSTEM=="sound", GROUP="audio", \
+  OPTIONS+="static_node=snd/seq", OPTIONS+="static_node=snd/timer"
+
+SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664"
+
+SUBSYSTEM=="firewire", ATTR{units}=="*0x00a02d:0x00010*", GROUP="video"
+SUBSYSTEM=="firewire", ATTR{units}=="*0x00b09d:0x00010*", GROUP="video"
+SUBSYSTEM=="firewire", ATTR{units}=="*0x00a02d:0x010001*", GROUP="video"
+SUBSYSTEM=="firewire", ATTR{units}=="*0x00a02d:0x014001*", GROUP="video"
+
+KERNEL=="parport[0-9]*", GROUP="lp"
+SUBSYSTEM=="printer", KERNEL=="lp*", GROUP="lp"
+SUBSYSTEM=="ppdev", GROUP="lp"
+KERNEL=="lp[0-9]*", GROUP="lp"
+KERNEL=="irlpt[0-9]*", GROUP="lp"
+SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ENV{ID_USB_INTERFACES}=="*:0701??:*", GROUP="lp"
+
+SUBSYSTEM=="block", GROUP="disk"
+SUBSYSTEM=="block", KERNEL=="sr[0-9]*", GROUP="cdrom"
+SUBSYSTEM=="scsi_generic", SUBSYSTEMS=="scsi", ATTRS{type}=="4|5", GROUP="cdrom"
+KERNEL=="sch[0-9]*", GROUP="cdrom"
+KERNEL=="pktcdvd[0-9]*", GROUP="cdrom"
+KERNEL=="pktcdvd", GROUP="cdrom"
+
+SUBSYSTEM=="scsi_generic|scsi_tape", SUBSYSTEMS=="scsi", ATTRS{type}=="1|8", GROUP="tape"
+SUBSYSTEM=="scsi_generic", SUBSYSTEMS=="scsi", ATTRS{type}=="0", GROUP="disk"
+KERNEL=="qft[0-9]*|nqft[0-9]*|zqft[0-9]*|nzqft[0-9]*|rawqft[0-9]*|nrawqft[0-9]*", GROUP="disk"
+KERNEL=="loop-control", GROUP="disk", OPTIONS+="static_node=loop-control"
+KERNEL=="btrfs-control", GROUP="disk"
+KERNEL=="rawctl", GROUP="disk"
+SUBSYSTEM=="raw", KERNEL=="raw[0-9]*", GROUP="disk"
+SUBSYSTEM=="aoe", GROUP="disk", MODE="0220"
+SUBSYSTEM=="aoe", KERNEL=="err", MODE="0440"
+
+KERNEL=="rfkill", MODE="0664"
+KERNEL=="tun", MODE="0666", OPTIONS+="static_node=net/tun"
+
+KERNEL=="fuse", MODE="0666", OPTIONS+="static_node=fuse"
+
+SUBSYSTEM=="ptp", ATTR{clock_name}=="KVM virtual PTP", SYMLINK += "ptp_kvm"
+
+LABEL="default_end"

recipes-core/udev/eudev_3.2.7.bbappend

+
+FILESEXTRAPATHS_prepend := "${THISDIR}/eudev:"
+
+SRC_URI += "file://50-udev-default.rules"
+
+do_install_append() {
+    # overwrite default rules
+    rm ${D}${base_libdir}/udev/rules.d/50-udev-default.rules
+    install -m 0644 ${WORKDIR}/50-udev-default.rules ${D}${base_libdir}/udev/rules.d/50-udev-default.rules
+}