2. Linux Installation

Installation

https://github.com/t2linux/archiso-t2 https://wiki.t2linux.org/distributions/arch/installation/

Prime the USB

sudo dd if=$PWD/archlinux-t2-2024.07.13-t2-x86_64.iso of=/dev/rdisk2 bs=4M;

Pree chroot

wipefs /dev/sda2
passwd
dhcpcd
fdisk /dev/sda
mkfs.ext4 /dev/sda3
mount /dev/sda3 /mnt/
mkswap /dev/sda2
swapon /dev/sda2

Bootstrap

t2strap  /mnt base linux-firmware iwd grub nano sudo htop sudo wget networkmanager tbtools gptfdisk iperf3 rdma-core iproute2 nfs-utils git base-devel which emacs-nox gcc autoconf cmake dkms openssl man-db man-pages openssh inetutils intel-compute-runtime hwloc ipv6calc tree thermald screenfetch lm_sensors ntp cronie slurm-llnl
mount /dev/sda1 /mnt/boot
genfstab -U -p /mnt >> /mnt/etc/fstab
arch-chroot /mnt

Emacs config

;;#cat .emacs
;; Basic emacs
(setq backup-inhibited t)
(setq auto-save-default nil)

configs

passwd
ln -sf /usr/share/zoneinfo/US/Eastern /etc/localtime
hwclock --systohc
emacs /etc/locale.gen
# localectl set-locale LANG="en_US.UTF-8"
# Booted USB with systemd, can't operate
export EDITOR=emacs
visudo

#+end_src

Services

systemctl enable t2fanrd
systemctl enable thermald.service
systemctl enable NetworkManager.service
systemctl enable sshd.service
systemctl enable ntpd.service
systemctl enable cronie.servicea

Mkinitcpio

emacs /etc/mkinitcpio.conf
MODULES=(apple-bce)

hostname

emacs /etc/hostname

disable ssh pass

emacs /etc/ssh/sshd_config

Thunderbolt udev /etc/udev/rules.d/99-local.rules

ACTION=="add", SUBSYSTEM=="thunderbolt", ATTR{authorized}=="0", ATTR{authorized}="1"

IPV6 address mode for proper roce

I'll touch on IP config later.

/etc/sysctl.d/
emacs /etc/sysctl.d/99-sysctl.conf
net.ipv6.conf.default.addr_gen_mode = 1
net.ipv6.conf.thunderbolt0.addr_gen_mode = 1
net.ipv6.conf.thunderbolt1.addr_gen_mode = 1
net.ipv6.conf.thunderbolt2.addr_gen_mode = 1
net.ipv6.conf.thunderbolt3.addr_gen_mode = 1

makepkg -j6

emacs /etc/makepkg.conf

Grub

emacs /etc/default/grub GRUB_CMDLINE_LINUX="quiet splash intel_iommu=on iommu=pt pcie_ports=compat" emacs /boot/grub/grub.cfg /etc/fstab

# Setup
grub-install --no-nvram --target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB
ls /boot/EFI/GRUB/grubx64.efi
mv /boot/EFI/GRUB/grubx64.efi /boot/System/Library/CoreServices/boot.efi
rm -rf /boot/EFI/

Rebuild kernel

pacman -S linux-t2 linux-t2-headers Required for proper mkinitcpio

pacman.conf

/mnt/etc/pacman.conf [arch-mact2] Server = https://mirror.funami.tech/arch-mact2/os/x86_64 SigLevel = Never #+begin_example

Grub

grub-install --no-nvram --target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB
grub-mkconfig -o /boot/grub/grub.cfg
mkdir -p System/Library/CoreServices/
rmdir EFI/GRUB/
rmdir EFI/

NFS mount

emacs /etc/makepkg.conf

ZFS

git clone https://aur.archlinux.org/zfs-linux-git.git
cd zfs-linux-git
makepkg -si

echo zfs > /etc/modules-load.d/zfs.conf

Building Kernel

emacs /etc/makepkg.conf

git clone https://github.com/NoaHimesaka1873/linux-t2-arch
cd linux-t2-arch
makepkg -si
# Edit parameters
# Dev runs:
--noextract --nobuild

Example /etc/fstab

# Static information about the filesystems.
# See fstab(5) for details.

# <file system> <dir> <type> <options> <dump> <pass>
# /dev/sda2
UUID=8a9e5242-556d-4f78-905f-d06d7b8d0dc9	/         	ext4      	rw,relatime,stripe=8191	0 1

# /dev/sda1
UUID=AFCB-12E5      	/boot     	vfat      	rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro	0 2

#+end_example

Disable hyperthread

cmd-r boot: nvram SMTDisable=%01