To resolve this error, upgrade the BIOS/Firmware software to the latest version available. These are just informational messages which are logged on the server. Whenever a new CPU is added, the firmware script checks for that CPU's firmware and requests for firmware. Hence the message is logged in the messages file.
# cat var/log/messages*|grep firmware Oct 10 03:01:52 hostname kernel: platform microcode: firmware: requesting intel-ucode/06-3f-02 Oct 13 08:40:13 hostname kernel: platform microcode: firmware: requesting intel-ucode/06-3f-02 Oct 13 15:31:59 hostname kernel: platform microcode: firmware: requesting intel-ucode/06-3f-02 Oct 13 15:31:59 hostname firmware.sh[6111]: Cannot find firmware file 'intel-ucode/06-3f-02' Oct 13 16:02:52 hostname kernel: platform microcode: firmware: requesting intel-ucode/06-3f-02
The firmware file firmware.sh is located in /lib/udev.
[root@computeman ~]# cat /lib/udev/firmware.sh
#!/bin/sh -e
FIRMWARE_DIRS="/lib/firmware/updates/$(uname -r) /lib/firmware/updates \
/lib/firmware/$(uname -r) /lib/firmware"
err() {
echo "$@" >&2
logger -t "${0##*/}[$$]" "$@" 2>/dev/null || true
}
if [ ! -e /sys$DEVPATH/loading ]; then
err "udev firmware loader misses sysfs directory"
exit 1
fi
for DIR in $FIRMWARE_DIRS; do
[ -e "$DIR/$FIRMWARE" ] || continue
echo 1 > /sys$DEVPATH/loading
cat "$DIR/$FIRMWARE" > /sys$DEVPATH/data
echo 0 > /sys$DEVPATH/loading
exit 0
done
echo -1 > /sys$DEVPATH/loading
err "Cannot find firmware file '$FIRMWARE'" ------------> This is the line which we can see in logs
mkdir -p /dev/.udev/firmware-missing
file=$(echo "$FIRMWARE" | sed 's:/:\\x2f:g')
ln -s -f "$DEVPATH" /dev/.udev/firmware-missing/$file
exit 1
# cat lib/udev/rules.d/50-firmware.rules # do not edit this file, it will be overwritten on update # firmware-class requests, copies files into the kernel SUBSYSTEM=="firmware", ACTION=="add", RUN+="firmware.sh"
# grep ucode sos_commands/kernel/dmesg platform microcode: firmware: requesting intel-ucode/06-3f-02 platform microcode: firmware: requesting intel-ucode/06-3f-02