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General Setup

Good tutorial for i3 customization

https://itsfoss.com/i3-customization/

Discord for wayland

https://lemmy.ml/post/1557630

Text editor setup

Delete files that might conflict.

rm -rf ~/.local/share/nvim

Copy the files from config/nvim to ~/.config/nvim.

Call nvim in a terminal and wait for the compiling of all the packages. It might take some time.

For LSP configuration, open nvim and install using mason.

Arch Linux

Based on Diolinux: https://diolinux.com.br/sistemas-operacionais/arch-linux/como-instalar-arch-linux-tutorial-iniciantes.html

!!! BIOS CHECK !!!

Verify if the options:

  • RST is disabled
  • Secure Boot is disabled
  • AHCI is set instead of RAID

Verify boot mode

Check if the /sys/firmware/efi/efivars file exists.
If it exists then the instalation will be for UEFI, otherwise BIOS.

Internet connection

iwctl
station list
station <device> scan
station <device> get-networks
station <device> connect <connetion>

Check the internet connection with ping google.com

Partition the disks

In BIOS:

  • /dev/sda1 # Root
  • /dev/sda2 # Home

In UEFI

  • /dev/sda1 # Root
  • /dev/sda2 # Home
  • /dev/sda3 # Boot

Format partitions

# Root and home
mkfs.ext4 </dev/sda*>
# Boot
mkfs.fat -F32 </dev/sda*>

Mount the filesystem

# Root and home
mount /dev/sda1 /mnt
mount --mkdir /dev/sda2 /mnt/home
# If using EFI also mount boot
mount --mkdir /dev/sda3 /mnt/boot/efi

Install essential packages

# Scrach system install
pacstrap -K /mnt base linux linux-firmware vim iwd dhcpcd dosfstools
# Fstab for mounting partitions
genfstab -U -p /mnt >> /mnt/etc/fstab
# Enter the new system as root
arch-chroot /mnt

Basic setup

# Timezone
ln -sf /usr/share/zoneinfo/America/Sao_Paulo /etc/localtime
# Localization
# Uncomment the line pt_BR.UTF-8 in /etc/locale.gen
locale-gen
# locale config
echo LANG=pt_BR.UTF-8 >> /etc/locale.conf
# Keyboard
echo KEYMAP=br-abnt2 >> /etc/vconsole.conf
# Hostname
echo thehostnameilike >> /etc/hostname

Initramfs

mkinitcpio -P

Root and User password

# Root password
passwd
# Create new user and set password
useradd -m -g users -G wheel,storage,power -s /bin/bash theusernameilike
passwd theusernameilike

Bootloader with GRUB

Now make sure to known if you are using BIOS Legacy or EFI

For BIOS

pacman -S grub
grub-install --target=i386-pc --recheck /dev/sda --force
grub-mkconfig -o /boot/grub/grub.cfg

For UEFI

pacman -S grub efibootmgr
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=arch_grub --recheck
grub-mkconfig -o /boot/grub/grub.cfg

Exit the arch-chroot and dismount the disks

umount -l /dev/sda1
umount -l /dev/sda2
umount -l /dev/sda3

Finally, reboot and pray.

And then login with the user you created

Internet connection

Start and enable dhcpcd and iwd

systemctl enable dhcpcd
systemctl enable iwd
systemctl start dhcpcd
systemctl start iwd

8021x Networks

Create a file as root in /var/lib/iwd/mywifiname.8021x

[Security]
EAP-Method=TTLS
EAP-Identity=myusername
EAP-TTLS-Phase2-Method=Tunneled-PAP
EAP-TTLS-Phase2-Identity=myusername
EAP-TTLS-Phase2-Password=thepasswordformyusername

[Settings]
AutoConnect=true

Update clock/date/locale

timedatectl set-ntp true
localectl set-locale LANG=pg_BR.UTF-8
localectl set-keymap --no-convert bt-abnt2

Mirrors

Update the pacman mirrors to improve pacman

Server = https://archlinux.c3sl.ufpr.br/$repo/os/$arch

Graphical interface

Check the files i3_setup.md and sway_setup.md

Firefox

Compact mode

about:config -> browser.compactmode.show -> set true -> customize toolbar -> Density -> Compact

Screenshot

customize toolbar -> add screenshot

Usual system problems and solutions

Can't update arch after a long time without updating
solution: Update the keyring and then update the system: sudo pacman -Sy archlinux-keyring and then sudo pacman -Su

Packages not seen by pacman
If you run sudo pip install ... there will be packages that are not seen by pacman and then get update errors
solution: sudo pacman -Syu --overwrite "*"

Change a string in multiple files inside a directory
solution: sed -i 's/<old-string>/<new-string>/g' * <* stands for all files in the current directory

Debug C code with segfault
solution: https://stackoverflow.com/questions/6545763/how-can-i-rerun-a-program-with-gdb-until-a-segmentation-fault-occurs

Bash execution output in stdout and file
Solution: program [arguments...] 2>&1 | tee outfile

Find file in subdirectories
Solution: find /<directory> -name <file>
Example: find /usr -name likwid*

Prompt colors:
Solution: https://robotmoon.com/bash-prompt-generator/

Print file based on file data:
Solution: https://unix.stackexchange.com/questions/206556/extracting-lines-based-on-conditions

Update latest version of pip:
solution: python3 pip install -U pip

Python matplotlib bad formatation:
solution: https://www.pythoncharts.com/matplotlib/rotating-axis-labels/

Show lines in file that aren't in another file:
solution: diff temp1 temp2 | grep "<" | sed 's/< //'

Update time clock:
solution: https://unix.stackexchange.com/questions/60772/i-messed-up-my-system-clock-in-arch-linux

Virtualenv with different python version:
solution: https://stackoverflow.com/questions/1534210/use-different-python-version-with-virtualenv

Find patterns in files:
solution: https://stackoverflow.com/questions/16956810/how-to-find-all-files-containing-specific-text-string-on-linux

LSP not findind library symbols:
solution: https://www.reddit.com/r/neovim/comments/qt6565/lsp_pyright_cannot_access_member/?rdt=42439

Show lines in file1 that are not in another file2:
Solution: grep -vwf file2 file1

Call python function from command line with parameters:
Solution: https://stackoverflow.com/questions/3987041/run-function-from-the-command-line

Remove orphaned packages packages that were installed as dependencies but are no longer required solution: sudo pacman -Rns $(pacman -Qdtq)