Can't install Arch Linux On Lenovo IdeaPad Slim 560i Chromebook

Hello everyone,

I am using Lenovo IdeaPad Slim 560i Chromebook (LINDAR-EDFZ), I want to install Arch Linux dual-boot ChromeOS.
So I update RW_LEGACY, use chrx to partition. But when booting from installation media, it says

Then I install Ubuntu to search for more information. I search internet, but I can’t find person who has same isuue.

But now I found out that it is error of touchscreen. Actually in Ubuntu, touchscreen doesn’t work touchscreen.

I just want to install Arch Linux. I hopefully touchscreen will work, but for now, how can I install arch?

sudo dmesg | grep i2c_irants on Ubuntu:

[    0.821085] elants_i2c i2c-ELAN0001:00: supply vcc33 not found, using dummy regulator
[    0.821136] elants_i2c i2c-ELAN0001:00: supply vccio not found, using dummy regulator
[    0.852790] elants_i2c i2c-ELAN0001:00: nothing at this address

cat /proc/bus/input/devices(a part) on Ubuntu:

I: Bus=0019 Vendor=0000 Product=0000 Version=0001
N: Name="Tablet Mode Switch"
P: Phys=GOOG0006
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:02/PNP0C09:00/GOOG0006:00/input/input3
U: Uniq=
H: Handlers=event3 
B: PROP=0
B: EV=21
B: SW=2

I: Bus=0018 Vendor=04f3 Product=010b Version=0000
N: Name="Elan Touchpad"
P: Phys=
S: Sysfs=/devices/pci0000:00/0000:00:19.1/i2c_designware.3/i2c-3/i2c-ELAN0000:00/input/input4
U: Uniq=
H: Handlers=mouse0 event4 
B: PROP=5
B: EV=b
B: KEY=e520 10000 0 0 0 0
B: ABS=663800013000003

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="sof-rt5682 Headset Jack"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/tgl_rt1011_rt5682/sound/card0/input10
U: Uniq=
H: Handlers=kbd event5 
B: PROP=0
B: EV=23
B: KEY=40 0 0 0 0 0 0 1000000000 c000000000000 0
B: SW=14

cat /proc/bus/input/devices(a part) on ChromeOS:

I: Bus=0019 Vendor=0000 Product=0000 Version=0001
N: Name="Tablet Mode Switch"
P: Phys=GOOG0006
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:02/PNP0C09:00/GOOG0006:00/input/input3
U: Uniq=
H: Handlers=event3 
B: PROP=0
B: EV=21
B: SW=2

I: Bus=0018 Vendor=04f3 Product=010b Version=0000
N: Name="Elan Touchpad"
P: Phys=
S: Sysfs=/devices/pci0000:00/0000:00:19.1/i2c_designware.3/i2c-17/i2c-ELAN0000:00/input/input4
U: Uniq=
H: Handlers=event4 
B: PROP=5
B: EV=b
B: KEY=e520 10000 0 0 0 0
B: ABS=663800013000003

I: Bus=0018 Vendor=0000 Product=0000 Version=0000
N: Name="Elan Touchscreen"
P: Phys=
S: Sysfs=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-15/i2c-ELAN0001:00/input/input5
U: Uniq=
H: Handlers=event5 
B: PROP=2
B: EV=b
B: KEY=400 0 0 0 0 0
B: ABS=6e1800001000003

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="sof-rt5682 Headset Jack"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/tgl_rt1011_rt5682/sound/card0/input6
U: Uniq=
H: Handlers=event6 
B: PROP=0
B: EV=23
B: KEY=40 0 0 0 0 0 0 1000000000 c000000000000 0
B: SW=14

(Sorry for my bad English)
Thanks