https://wiki.manjaro.org/index.php/Manjaro_Kernels

sudo mhwd-kernel -h
sudo mhwd-kernel -li
sudo mhwd-kernel -i <your-kernel>
    [rmc: for removing current]

Volatile files bug:
https://forum.manjaro.org/index.php?topic=20285.0
https://forum.manjaro.org/index.php?topic=19869.0


https://wiki.archlinux.org/index.php/Kernel_modules

mkinitcpio:
https://wiki.archlinux.org/index.php?title=Mkinitcpio
man mkinitcpio
mkinitcpio -p linux318

>>> Generating initial ramdisk, using mkinitcpio.  Please wait...
==> Building image from preset: /etc/mkinitcpio.d/linux318.preset: 'default'
  -> -k /boot/vmlinuz-3.18-x86_64 -c /etc/mkinitcpio.conf -g /boot/initramfs-3.18-x86_64.img


Blacklisting:

piix4_smbus 0000:00:07.0: SMBus base address uninitialized - upgrade BIOS or use force_addr=0xaddr
http://www.puppychau.com/archives/62

See if the i2c_piix4 module is indeed loaded with the command
sudo lsmod | grep i2c_piix4

Blacklist the loading of the i2c_piix4 module by adding it in
/etc/modprobe.d/blacklist.conf
blacklist i2c_piix4

don’t need to update the boot image



kernels for virtualbox:

You may want to load vboxguest, vboxsf and vboxvideo
/etc/modules-load.d/linux312-virtualbox-guest-modules.conf
/etc/modules-load.d/mhwd-virtualbox.conf