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title: Arch Linux on my Dell XPS
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---
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pub_date: 2021-12-31
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---
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_discoverable: no
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---
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body:
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## Create install media
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## Install
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- Follow the wiki
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``` sh
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# Connect to the internet, the moment we do relector will update the mirrorlist
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iwctl station wlan0 connect <bssid>
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# Set up date and time
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timedatectl set-ntp true
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timedatectl set-timezone Europe/Madrid
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# Prepare the disk, the setup I used:
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# Disk #0: 512MB, Boot partition, UEFI type
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# Disk #1: 16384MB, SWAP, swap type
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# Disk #2: Rest of the disk, btrfs type
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# fdisk ...
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# Prepare the filesystems and the luks encryption
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mkfs.vfat -F32 /dev/nmve0n1p0
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mkswap /dev/nmve0n1p1
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cryptsetup luksFormat /dev/nvme0n1p2 # Password here
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cryptsetup open /dev/nvme0n1p2 luks
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mkfs.btrfs -L btrfs /dev/mapper/luks
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# Prepare the btrfs partition
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mkdir /mnt/luks
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mount -t btrfs /dev/mapper/luks /mnt/luks
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cd /mnt/luks
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btrfs subvolume create root
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btrfs subvolume create home
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btrfs subvolume create snapshots
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# Mount everything under /mnt
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mkdir /mnt/{home,boot}
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mount -o subvol=root,compress=lzo /dev/mapper/luks /mnt
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mount -o subvol=home,compress=lzo /dev/mapper/luks /mnt/home
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mount /dev/nvme0n1p0 /mnt/boot
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# Run pacstrap with several base packages:
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pacstrap /mnt \
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base \
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linux-lts linux-firmware \
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intel-ucode \
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terminus-font \ # Fonts in vconsole
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man-db man-pages \ # Man pages
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iwd sudo vim NetworkManager # Utilities
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# Generate the /etc/fstab file
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genfstab -L /mnt >> /mnt/etc/fstab
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# Check everything is correct, replace realtime with noatime and discard flags to
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# make flash drive last longer
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vim /mnt/etc/fstab
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# Enter into the system
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arch-chroot /mnt
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# Setup timedate
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timedatectl set-timezone Europe/Madrid
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# Sync the RTC from the system time (useful if dual booting)
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hwclock --systohc
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# Set the en_US.UTF-8 locale (uncomment)
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vim /etc/locale.gen
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locale-gen
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# Setup default locale
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echo 'LANG=en_US.UTF-8' > /etc/locale.conf
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# Setup keymap and font
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echo 'KEYMAP=us\nFONT=ter-232n' > /etc/vconsole.conf
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pacman -S physlock # To allow locking the computer when in VConsole
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# Setup the computer hostname
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echo 'deru' > /etc/hostname
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# Setup the hosts file
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echo '127.0.0.1 localhost\n::1 localhost\n127.0.1.1 deru.localdomain deru' > /etc/hosts
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# Set root password
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passwd
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# Setup init hooks to use systemd
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vim /etc/mkinitcpio.conf
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# Remove udev and add systemd, sd-vconsole and sd-encrypt
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# Regenerate initrd
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mkinitcpio -p linux-lts
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# Setup systemd-boot
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bootctl --path=/boot install
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# Create the bootloader entry for Arch
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LUKS_UUID=$(cryptsetup luksUUID /dev/nvme0n1p2)
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cat >/boot/loader/entries/arch.conf <<EOL
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title Arch Linux (LTS)
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linux /vmlinuz-linux-lts
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initrd /intel-ucode.img
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initrd /initramfs-linux-lts.img
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options rw luks.uuid=${LUKS_UUID} luks.name=${LUKS_UUID}=luks root=/dev/mapper/luks rootflags=subvol=root
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EOL
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# Setup bootloader
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echo 'default arch.conf' > /boot/loader/loader.conf
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# System ready!
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exit
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reboot
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# Login as root
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# Setup systemd-resolved
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systemctl enable --now systemd-resolved
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ln -sf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
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# Install and start netowrk manager
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systemctl enable --now NetworkManager
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# Connect to wifi if required
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nmcli d wifi connntect <ssid> password <pass>
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# Setup hibernate
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# Get the swap disk UUID (double check manually)
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sudo blkid | grep swap | sed -rn 's/^.* UUID=\"([a-z0-9\-]+)\".*$/\1/p'
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# Add the resume boot parameter
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vim /boot/loader/entries/arch.conf
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# Under options:
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# resume=UUID=<uuid>
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# Systemd should check automatically for the swap partition on GPT tables [1]
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# Setup suspend-then-hibernate
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vim /etc/systemd/login.conf
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# My enabled options:
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# HandlePowerKey=suspend-then-hibernate
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# HandleLidSwitch=suspend-then-hibernate
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# HandleLidSwitchExternalPower=suspend-then-hibernate
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# HandleLidSwitchDocked=ignore
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# IdleAction=suspend-then-hibernate
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# IdleActionSec=10min
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vim /etc/systemd/sleep.conf
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# Find HibernateDelaySec and set to 5min
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# All these will be into effect in next boot
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```
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- [ ] Boot in 1080p mode
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- [ ] Docked toggle
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- [ ] VConsole auto lock?
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- [ ] IDLE toggle in VConsole?
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- [ ] Hardware acceleration
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## Hardware acceleration
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```
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pacman -S vulkan-intel
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```
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## Power
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```
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pacman -S tlp
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# Edit tlp configuration link power to prevent corruption on btrfs devices
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# /etc/tlp.conf
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# ...
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SATA_LINKPWR_ON_BAT=max_performance
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# ...
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```
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# Enable and start tlp
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systemctl enable --now tlp
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## Audio
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pacman -S alsa-utils pulseaudio pulseaudio-alsa pavucontrol
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systemctl start --user pulseaudio.socket
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## Bluetooth
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```
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pacman -S bluez bluez-utils
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modprobe btusb
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systemctl enable --now bluetooth
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bluetoothctl -- power on
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```
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## Brightness control
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```
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pacman -S brightnessctl
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```
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## Fonts
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```
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pacman -S otf-ipafont # Japanese
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pacman -S ttf-bitstream-vera # Default
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```
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## Userspace
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Enable multilib repos to install steam
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```
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useradd fmartingr
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pacman -S sway dmenu xorg-xwayland alacritty qutebrowser
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pacman -S mako # notifications
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# TODO notification history?
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```
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@ -0,0 +1,79 @@
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title: Running Alpine Linux from USB on the Raspberry Pi 3
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---
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pub_date: 2021-12-31
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---
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_discoverable: no
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---
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body:
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``` bash
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# Tested on Raspberry Pi 3
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# Create a Raspberry pi OS SD card
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sudo apt update
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sudo apt upgrade
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sudo rpi-update
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echo program_usb_boot_mode=1 | sudo tee -a /boot/config.txt
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reboot
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# At this point the boot flag is enabled
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# Prepare the USB
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# Install Alpine to USB Drive
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# Format USB
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# Create two partitions:
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# - boot fat16
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# - root ext4
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tar xzvf ~/Downloads/alpine-rpi-3.12.1-armhf.tar.gz
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# boot/usercfg.txt:
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enable_uart=1 # Not sure I need this
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gpu_mem=32 # The minimal memory for the bootloader
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setup-alpine
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apk update
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apk add cfdisk e2fsprogs
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mkfs.ext4 /dev/sda2
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# Setup proper TZ
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apk add tzdata
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cp /usr/share/zoneinfo/Europe/Madrid /etc/localtime
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echo "Europe/Madrid" > /etc/timezone
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apk del tzdata
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mount /dev/sda2 /mnt
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setup-disk -m sys /mnt
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mount -o remount,rw /media/sda1
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rm -f /media/sda1/boot/*
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cd /mnt
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rm boot/boot # Remove symlink
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mv boot/* /media/sda1/boot/
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rm -rf boot
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mkdir media/sda1
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ln -s media/sda1/boot boot
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# /mnt/etc/fstab
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# Remove cdrom
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# Add:
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/dev/sda1 /media/sda1 vfat default 0 0
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# Edit boot cmdline to boot from the ext partition
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# Add root=/dev/sda2
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# Reboot
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# After install
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# Set swclock (pi doesn't have a hwclock)
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rc-update add swclock boot
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rc-update del hwclock boot
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service hwclock stop
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service swclock start
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apk update
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apk upgrade
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```
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@ -0,0 +1,102 @@
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title: Self-hosting my home: Grafana, InfluxDB, ESPHome
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---
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_discoverable: no
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---
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pub_date: 2021-12-31
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---
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body:
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## InfluxDB
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``` sql
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GRANT ALL ON "homeassistant" TO "homeassistant";
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```
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## Grafana
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...
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## ESP Home
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...
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### Temperature and Humidity Monitors
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...
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### Mi Flora
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- Get MAC Address for the Mi flora
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```
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$ bluetoothctl scan on | grep -i flo
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[NEW] Device XX:XX:XX:XX:XX:XX Flower care
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```
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- Create a new ESP Home integration to track the sensor:
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I name my sensors with numbers so I can write the number on them and identify them easily. You only need to assign sensors to rooms to have them easily available when looking for them on dashboards.
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``` yaml
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[...]
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# Sensors
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esp32_ble_tracker: # Required for BLE scanning
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sensor:
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- platform: xiaomi_hhccjcy01
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mac_address: 'XX:XX:XX:XX:XX:XX'
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temperature:
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name: "Flora 1 Temperature"
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moisture:
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name: "Flora 1 Moisture"
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illuminance:
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name: "Flora 1 Illuminance"
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conductivity:
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name: "Flora 1 Soil Conductivity"
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battery_level:
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name: "Flora 1 Battery Level"
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```
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- Validate and upload the configuration to your ESP device.
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- With that, you could already create a card with the sensors provided by the integration, but for better visual information a [`plant`](https://www.home-assistant.io/integrations/plant/) object can be created with aproppriate values. Information comes from the Mi Flora App, but someone dumped the database and it's available also [on github](https://github.com/khronimo/MiFloraDB).
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From the spreadsheet:
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- Moisture: `min_soil_moist`/`max_soil_moist`
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- Temperature: `min_temp`/`max_temp`
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- Conductivity: `min_soil_ec`/`max_soil_ec`
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- Brightness: `min_light_lux`/`max_light_lux`
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- Create a `plant` monitor on the `configuration.yaml` file:
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``` yaml
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plant:
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parsley:
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sensors:
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moisture: sensor.flora_1_moisture
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battery: sensor.flora_1_battery
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temperature: sensor.flora_1_temperature
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conductivity: sensor.flora_1_soil_conductivity
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brightness: sensor.flora_1_illuminance
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min_moisture: 28
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max_moisture: 75
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min_battery: 20
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min_conductivity: 100
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max_conductivity: 2000
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min_temperature: 5
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max_temperature: 35
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min_brightness: 2500
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max_brightness: 55000
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check_days: 3
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```
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- Restart Home Assistant for the changes to take effect.
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- Add a [Plant Status Card](https://www.home-assistant.io/lovelace/plant-status/) to your dashboard and select the plant you just created.
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---
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_discoverable: no
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Binary file not shown.
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@ -0,0 +1,22 @@
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title: Self-hosting my home: Zigbee devices
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---
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_discoverable: no
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---
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pub_date: 2021-12-31
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---
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body:
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## DeCONZ + Phoscon
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- Install deconz addon
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- Add deconz integration
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- Host: core_deconz
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## Pairing everything
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- Pair smart plug (show as light)
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- Pair motion sensor
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- Pair window/door sensors
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- Pair light detector
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---
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||||
_discoverable: no
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