legallyrobert/arch.md

## arch.md

      
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              arch.md
            
          
    Arch Dual Boot Notes

For Mid-2014 MacBook Pro, Retina 15"

Assuming a bootable USB was created, and booted into successfully.
Installation

Make font larger:
 # setfont sun12x22

Stop GPU overheating
 # grep . -r /sys/firmware/acpi/interrupts/gpe\*
 // highest number needs disabled
 # echo “disable” > /sys/firmware/acpi/interrupts/gpe17

Connect ethernet:
 # ip link -> ~”en0ps25”
 # dhcpcd <interface>
 // confirm connection
 # ping google.ca

Partition disk:
 # fdisk -l
 # cgdisk /dev/sda
 // select GPT, and create: /dev/sda3   of type linux 8300
 # lsblk

Format disk:
 # mkfs.ext4 /dev/sda3

Mount disks:
 # mount /dev/sda3 /mnt

Mount pre-existing EFI partition:
 # mkdir -p /mnt/boot
 # mount /dev/sda1 /mnt/boot		    // sda1 == EFI System Partition

Install base base-devel
 # pacstrap /mnt base base-devel

Generate fstab
 # genfstab -L -p /mnt >> /mnt/etc/fstab
 $ vi (/mnt?)/etc/fstab
 > /dev/sda3	/	ext4	rw,relatime,data=ordered,discard		0 1

Change root base into /mnt:
 # arch-chroot /mnt /bin/bash

Permanent TTY font
 # pacman -S terminus-font
 # setfont ter-932n
 # vi /etc/vconsole.conf
 > FONT=ter-932n

Uncomment locale
 # vi /etc/locale.gen
 # locale-gen
 # echo LANG=en_CA.UTF-8 > /etc/locale.conf

Hardware clock and timezone
 # ln -s /usr/share/zoneinfo/Zone/ZubZone /etc/localtime
 # hwclock —systohc —utc

Hostname
 # echo bespin > /etc/hostname
 # echo “127.0.0.1 bespin.localdomain bespin” >> /etc/hosts
 # systemctl enable dhcpcd

Set root user password
 # passwd

Kernel modules for fan speed/temp:
 # vi /etc/modules
 // add 2 lines: coretemp; applesmyc

Install Intel Ucode
 # pacman -Syu intel-ucode

Find PARTUUID:
 # blkid | awk '{print $1" "$(NF)}'
 // /dev/sda3 PARTUUID is: 2bcf28ae-2cc2-4484-8c1f-76d41883d5d6

Bootloader:
 # vi /boot/loader/entries/arch.conf	
 > title Arch Linux
 > linux /vmlinuz-linux
 > initrd /intel-ucode.img
 > initrd /initramfs-linux.img
 > options root=/dev/sdXY rw quiet acpi_mask_gpe=[GPE NUMBER HERE] acpi_osi=Darwin

Tell systemd-boot to use arch.conf (as default?)
 $ echo “default arch” > /boot/loader/loader.conf
 $ echo “timeout 5” >> /boot/loader/loader.conf

Install systemd-boot:
 # bootctl install

Post-install

Create user account
 # useradd -m -G wheel -s /bin/bash NAME
 # passwd PASSWD

Install essential packages:
 # pacman -S sudo vim

Set editor
 # vim /etc/environment
 > EDITOR=vim

Add wheel group to sudoers
 # visudo
 // uncomment %wheel ALL=(ALL) ALL

Reboot, remove installation media, pray to god, then login to account
 # exit
 # umount -R /mnt
 # reboot							    //REBOOT 1

Swap:
 $ sudo fallocate -l 16G /swapfile
 $ sudo chmod 600 /swapfile
 $ sudo mkswap /swapfile
 $ vim /etc/fstab
 > /swapfile	none		swap	defaults	0	0
 $ vim /etc/sysctl.d/99-sysctl.conf
 > vm.swappiness=10
 $ swapon /swapfile

Get offset of swapfile:
 $ sudo filefrag -v /swapfile     // first non-zero entry: 342016

Append swap options in boot entry:
 $ vim /boot/loader/entries/arch.conf
 > options = … resume=/dev/sda3 resume_offset=342016

Add “resume” hook after udev:
 $ vim /etc/mkinitcpio.conf
 $ mkinitcpio -p linux

Prevent immediate wake from suspend/hibernate:
 $ vim /etc/udev/rules.d/90-wake.conf
 >     # ARPT
 > SUBSYSTEM=="pci", KERNEL=="0000:03:00.0", ATTR{power/wakeup}="disabled"
 >     # XHC1
 > SUBSYSTEM=="pci", KERNEL=="0000:00:14.0", ATTR{power/wakeup}="disabled"
 >     # LID0
 > SUBSYSTEM=="acpi", KERNEL=="PNP0C0D:00", ATTR{power/wakeup}="disabled"

Install yay to install mbpfan-git
 $ pacman -S git
 $ git clone https:    //aur.archlinux.org/yay.git
 $ cd yay
 $ makepkg -si
 $ yay -S mbpfan
 $ sudo vim /etc/mbpfan.conf
     // fan1: {2160, 6156}; fan2: {2000, 5700}
	    # lowest value of "cat /sys/devices/platform/applesmc.768/fan\*_min"
	min_fan_speed = 2000

	    # highest value of "cat /sys/devices/platform/applesmc.768/fan\*_max"
	max_fan_speed = 6156
	
	    # try ranges 55-63, default is 63
	low_temp = 54

	    # try ranges 58-66, default is 66	
	high_temp = 66

	    # take highest number returned by
	    # "cat /sys/devices/platform/coretemp.\*/hwmon/hwmon\*/temp\*_max"
	    # divide by 1000	
	max_temp = 84

	    # default is 7 seconds
	polling_interval = 7
 $ service mob-fan start
 $ cp mbpfan.service /etc/systemd/system
 $ systemctl enable mbpfan.service

Power consumption:
 $ sudo pacman -S tlp
 $ sudo systemctl enable tlp
 $ sudo systemctl enable tlp-sleep
 $ sudo tlp start

USB Power saving:
 $ vim /etc/modprobe.d/snd_hda_intel.conf
 > options snd_hda_intel power_save=1

Regulate CPU speed:
 $ yay -S thermald
 $ sudo systemctl enable thermald
 $ sudo systemctl start thermald

Keyboard backlight:
 $ yay -S kbdlight
 // usage: kbdlight up [percentage] | down [percentage]

Calibrate powersaving (Intel powertop)
 $ pacman -S powertop
 $ powertop --calibrate					    // do not interrupt
 $ powertop --auto-tune

To apply optimal settings at boot:
 $ vim /etc/systemd/system/powertop.service
 > [Unit]
 > Description=Powertop tunings
 >
 > [Service]
 > Type=oneshot
 > ExecStart=/usr/bin/powertop --auto-tune
 >
 > [Install]
 > WantedBy=multi-user.target
 $ systemctl enable powertop.service

Enable audio:
 $ yay -S alsa-utils pulseaudio
     // systemd
 $ alsamixer 							    // unmute all mixers

Audio powersaving and switching output from HDMI to PCH
 $ vim /etc/modprobe.d/60-snd_hda_intel.conf            // to add:
 > options snd_hda_intel index=1,0 power_save=1

Fix unwanted laptop resume after close, ensure XHC1 is still disabled
 $ cat /proc/acpi/wakeup

Wifi:
 $ yay -S broadcom-wl
 $ pacman -S network manager
 $ systemctl enable NetworkManager

Reboot:
 $ sudo reboot					    //  REBOOT 2
 $ speaker-test -c 2
 $ ip link     // check for Wifi Interface e.g. wlp2s0
 $ nmcli dev wifi connect SSID password PASSWD

After rebooting check output to verify XHC1 status is disabled
 $ cat /proc/acpi/wakeup

Getting Graphical

Install Xorg:
 $ pacman -S xorg-server org-xrandr xorg-xinit xorg-fonts