Simply run the following command:

# cat /proc/cmdline

ro root=UUID=43bd45ff-cc28-4317-88ed-d6fca04bf6a0 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=133M@0M  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet