How To Install Arch Linux (Windows Dualboot)
We are going to be dualbooting Arch Linux on a Windows laptop today. Despite what others say, Arch is relatively easy to setup in comparison to other distros in my opinion. The fact that it is minimal just means that you have minimal things to setup. Sometimes you will run into issues when installing on hardware compared to a VM, so I will also be covering some of my troubleshooting problems at the end.
I recommend having WSL installed on Windows in order to verify the ISO easily in a later step. You will also need an empty USB stick to make a bootable drive. I suggest reading through the Arch Installation Guide to get familiar with the steps. While I couldn’t follow the guide fully because of hardware specific errors, it is useful for getting familiar with what Arch needs in order to work. I’ll be trying my best to use layman terms so that hopefully beginners can follow along too.
Configuring Window’s Side
There are a few steps we need to do on Windows before going into the Arch setup. First we will need to disable fastboot from the battery’s options.
This can be found by right-clicking your battery icon from taskbar > power options > (left side) choose what the power button does > (at the top) change settings that are currently unavailable.
Next we will make an empty partition space by going to start menu and searching for “partition”, it should bring up an application that allows you to shrink your storage space.
Usually it will be disk 0, which is your main drive. You want to shrink the main space (normally C drive) by however much space you want to give your Linux OS.
Next you will want to make sure your bios firmware is up to date. The method to update it will depend on your manufacturer, but typically you will have some kind of program preinstalled to be able to do it. If not, then check their official site for their latest bios firmware. With the bios updated, restart the PC and go into bios (usually F2 or del, depending on your laptop). In the bios, you want to do 2 things:
- Disable Secure Boot
- Change the storage to UEFI mode
Every bios is a little different, so the method to change these options will vary. Do not worry if you cannot find the UEFI mode option, we can fix that during our Arch install.
Download Arch ISO
We will download the Arch Linux ISO through torrent from Arch’s wiki site. After getting the ISO, scroll down a bit and we will verify it with a PGP signature. Download the PGP signature and go to the fingerprint’s link.
At the fingerprint’s link, you should see something like the image below. You want to go to “pub” link and copy the URL address.
After getting the URL address, you want to run
gpg --fetch-key 'URL_ADDRESS' in your WSL terminal, like in the image below.
gpg --keyserver-options auto-key-retrive --verify archlinux-*.iso.sig , you want to make sure the .sig and .iso files are in the same directory. Good signature means that it’s good to go, ignore the warning.
Bootable Arch Linux ISO
Create the bootable usb with rufus, etcher, or whichever you prefer. I’m using rufus. To verify your partition scheme, you will need to look into the drive’s properties from the partition menu from before. If you don’t know how to do that, then I suggest taking a look at my Ubuntu dualboot article. Once everything looks good, just hit START to flash Arch onto your USB drive.
Once you have your USB bootable drive, you are all set to work on installing Arch Linux.
Installing Arch Linux
With the USB still plugged in, go into your BIOS and put the USB drive on the top of the list in your boot list. Save and exit, and it should boot into the Arch bootable loader. If you get an invalid signature/secure boot error when trying to boot into the arch USB, go into your bios and make sure you’ve disable secure boot + fast boot in Window’s battery settings.
Connecting to the internet
I will be showing how to connect to wifi, since I figure most people won’t have ethernet readily available.
We will be using iwctl to connect, so type
iwctl to go into it’s interface. Use
device list to see the name of our wifi device. Then
station device_name scan . If your device_name is wlan0, it is
station wlan0 scan . Next is
station device_name get-networks to get the name of the wifi to connect to. With the name/SSID, use
station device_name connect wifi_name , a password prompt should show up if the name/SSID is correct. Now we can check if we’re connected to the internet with
station device_name show and the ‘State’ should show ‘connected’. Type
quit to quit.
Setting our time and date
timedatectl set-ntp true and if it doesn't show any errors, then that means it worked. You can run
timedatectl status to check the time and date.
lsblk to see all of our storage device names.
The image above should look totally different from what would be on hardware. It might be ‘sda’ or ‘nvme0n1’ depending on what storage device you have:
You will want to run
lsblk -f or
fdisk -l to see which part is labeled the EFI System. This should be your Window’s EFI partition, remember these commands as we will need to reference these parts throughout partitioning our system.
cgdisk /dev/block_device, where block_device should be your storage’s partition system name. Note: If your storage is GPT, you will run
cgdisk. Otherwise, you will run
fdisk. You will get an error telling you it’s not GPT if you’re mismatching your storage type. Reference here for more info on block device names.
The images above show how to partition 1 section for EFI. I will be going with 3 sections:
- Linux EFI Partition
- Linux Root Partition (your main folder/drive essentially)
- Linux Swap
Usually people just go with Boot and Root, but I chose this setup for my laptop because I might use hibernate sometimes, so I need swap and a separate EFI from Windows to avoid any corruption during hibernation. You can check out the partition codes for cgdisk here. You will want to go through these 3 setups:
- EFI: first sector: blank, size:
- Swap: first sector: blank, size:
8G(or your ram size), guid:
- Root: first sector: blank, size: blank (fills all the way), guid: blank, name:
Just imagine having extra partitions on the top of these, which should be your Windows partition. So our Linux partitions should be EFI system, Linux swap, and Linux filesystem.
Be sure to triple check that everything is correct, because if you write over a windows partition, you will need to recover the disk as there will be no working OS on the drive anymore. Once you have those 3 partitions with the correct settings, select [Write], ‘yes’, then [Quit]. Congrats for making this far, the hardest part is over.
Next we will want to format our EFI partition. Run
mkfs.fat -F32 /dev/YOUR_EFI_PARTITION. It is at 5 for me on an nvme, So I will run
mkfs.fat -F32 /dev/nvme0n1p5, but it might be
/dev/sda# for you.
Next we will format our filesystem with
mkfs.ext4 /dev/YOUR_FILESYSTEM_PARTITION , and hit the default for when creating the journal.
If you have swap, formatting it, we will run
mkswap /dev/YOUR_SWAP_PARTITION . It will be
mkswap /dev/nvme0n1p7, but it might be
/dev/sda# for you. Turn on the swap with
swapon /dev/YOUR_SWAP_PARTITION .
Lets mount our Root filesystem with
mount /dev/YOUR_FILESYSTEM_PARTITION /mnt. Then let’s make the folder for our Linux EFI with
mkdir /mnt/boot and then run
mount /dev/YOUR_EFI_PARTITION /mnt/boot to mount.
You can run
df to make sure you have both EFI and filesystem mounts with the correct partitions.
We will run
pacstrap /mnt base base-devel linux linux-firmware util-linux grub efibootmgr os-prober intel-ucode networkmanager vim . Replace
amd-ucode, if your CPU is AMD. You can add more packages if you want, but I like to keep things minimal for our install. Vim is optional, but not really. You can choose your favorite terminal editor in place of it though.
The fstab is a list of drives for your PC to go through when Linux is booting up, and we will generate it with this command:
genfstab -U /mnt >> /mnt/etc/fstab . You can
vim /mnt/etc/fstab to see if everything is correct, the UUIDs should NOT be commented out. Remember to run the pacstrap above before running this, as pacstrap downloads genfstab.
Setting Up Arch
Now let’s log into our new Arch installation, since we are currently using our USB drive’s arch. Run
arch-chroot /mnt , this will log into our new Arch system as sudo pretty much.
If every is mounted correctly, you should get a prompt like in the image above.
Setting Time and Language
Let’s set our timezone by symbolic linking it:
ln -sf /usr/share/zoneinfo/Japan /etc/localtime , after /zoneinfo you might want to hit tab to see a list of countries, and then maybe another tab after selecting your country if it has multiple timezones. Sync the hardware clock with
hwclock - — systohc .
Next, let’s set the locale by going into
vim /etc/locale.gen with your favorite terminal editor.
en_US.UTF-8 UTF-8 , and/or whichever languages you want, and save+exit the file. Then run
locale-gen to generate the files.
Set our language by making a file in
/etc/locale.conf and typing in this line:
LANG=en_US.UTF-8 , and save+exit.
Setting Hosts, Hostname
Next let’s make a hostname, this will be seen after your username on terminal prompts. Make a new file
/etc/hostname and type in a desired name and save+exit.
Let’s set our hosts by going into
/etc/hosts and writing these 3 lines in:
127.0.1.1 YOUR_HOSTNAME.localdomain YOUR_HOSTNAME
Replace YOUR_HOSTNAME with your actual hostname.
Lastly let’s set our root’s password with
Setting up our network manager to load on boot up for whenever we boot into Arch, run
systemctl enable NetworkManager . Note that it is case sensitive. You can use
nmcli once you’ve finished installing Arch and booting into it, so that way you can easily access wifi instead of taking extra time setting it up manually.
Next let’s setup our bootloader, grub, for dualbooting. Setup grub with
grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB
Next we need to let
os-prober where our Windows is. So let’s check our Window’s EFI system partition directory with
fdisk -l to double check. As mentioned in the partitioning step, any partitions before the ones you’ve created are the Window’s ones. Mine is on the 1st partition,
so /dev/nvme0n1p1 . It might be something like
/dev/sda# for you.
Let’s make a new mount folder for Windows with
mkdir /mnt/win10 , and mount our Windows EFI to it with
mount /dev/nvme0n1p1 /mnt/win10 .
Lastly let’s make our grub config with this command:
grub-mkconfig -o /boot/grub/grub.cfg . The last output should show “Found Windows Boot Manager …”, which means we have successfully made a dualboot.
Now we have successfully installed and configured Arch for dualboot on a Windows PC. Last commands to run are
exit to get out of arch-chroot,
umount -a to unmount all drives, then
reboot. After rebooting, you should be greeted at the grub interface with an option for Arch or Windows. You can log into your new Arch system with
root as user and the password you made earlier.
For NVME Users that CANNOT set to UEFI in BIOS
If you’ve completed this tutorial and get this similar error when booting into Arch:
Starting version 247.3-1-arch
ERROR: device 'UUID=...' not found. Skipping fsck.
mount: /new_root: can't find UUID=...
You are now being dropped into an emergency shell.
sh: can't access tty: job control turned off
This most likely means that you haven’t set your storage to UEFI mode through the BIOS. It seems like newer computers with shiny NVME drives have this issue a lot. The steps to solve this:
- Boot back into the bootable Arch USB drive, go into the installation prompt
mount /dev/linux_root_partition /mnt
mount /dev/linux_efi_partition /mnt/boot
6. Change modules to the image above and save+quit
mkinitcpio -P linux to regenerate your kernel images
umount -a then
reboot , and your arch boot should work now.
I hope this helps out anyone trying to install Arch Linux, it is definitely a great Linux distro with a good community.