Check if computer is BIOS or UEFI in Linux

Look for  folder /sys/firmware/efi

ls /sys/firmware/efi

If folder is there then its UEFI otherwise its BIOS

Lenovo Ideapad Notebook

LG Gram - Ultra Slim Laptop

Features

Lighter
980g, 14 inch

Bigger
1920x1080 display, Full HD screen

Stronger
made of carbon magnesium and lithium magnesium

Specifications

COLOR:	Champagne Gold
OPERATING SYSTEM:	Windows 10 Home (64bit)
PROCESSOR:	CPU Brand: Intel
	CPU Core: i7
	CPU Type: 5500U
	CPU Speed: 2.4 GHz (Turbo up to 3.00GHz)
MEMORY:	Total Memory: 8GB x 1
	Memory Speed: DDR3L 1600MHz
	Cache: L3 Cache 3MB
HARD DRIVE:	Type: SSD (Solid-State Drive) SATA3
	Capacity: 256GB
DISPLAY:	Screen Size: 14.0"
	Display Type: IPS LCD
	Resolution: FHD (1920 x 1080)
	Graphics: Intel HD Graphics 5500
	Webcam: 1.3M / HD
AUDIO:	Speakers: DTS Sound
	Digital Analog Converter (DAC): Wolfson DAC (Hi-Fi sound)
	Built-In Microphone: 1.0W x 2 / Internal Mic
COMMUNICATIONS:	Wireless: Intel Dual Band Wireless-AC 7260 (802.11 agn/ac, 2x2)
	LAN: 10/100 Megabit (micro-USB port with RJ45 gender)
	Bluetooth 4.0 + LE (Low Energy): Yes
SPECIAL FEATURES:	Narrow Bezel: 7.2mm / 0.283"
	One-Hand Open: Yes
	Instant Booting: Yes
	Reader Mode: Yes
PORTS AND CONNECTORS:	HDMI (Standard): 1
	USB 3.0: 2
	Micro-SD: 1 slot, SDXC
	Headphone Out: Yes
	RJ45 Ethernet: Yes (micro-USB port with RJ45 gender)
	DC-In: Yes
BATTERY / POWER Battery:	2Cell (Li-Polymer, 4555mAh / 34.61 Wh)
	Battery Life: 7.5 Hours (MobileMark 2014)
	AC Adapter: Yes (40W 2 pin)
DIMENSIONS/WEIGHT:	Dimensions (WxHxD): 12.8" x 8.9" x 0.5"
	Shipping Dimensions (WxHxD): 17.01" x 10.71" x 1.61"
	Weight: 2.16 lbs
	Shipping Weight: 3.48 lbs

Source: http://www.lg.com/us/desktops-laptops/lg-gram-14Z950-A.AA4GU1-ultra-slim-laptop