2019년형 T2 맥 프로에 젠투와 암호화 ZFS를 설치했다

Device Start End Sectors Size Type
/dev/nvme0n1p1 256 77055 76800 300M EFI System
/dev/nvme0n1p2 77056 109823 32768 128G Linux swap
/dev/nvme0n1p3 109824 244276223 244166400 931.4G Linux filesystem

# Setup variables

ZFS_ROOT_DISK=nvme-APPLE_SSD_AP-YOUR_UNIQUE_ID-part3
EFI_DISK=nvme-APPLE_SSD_AP-YOUR_UNIQUE_ID-part1
DISK_PASSWD="SomeSuperSecretPassword"

# Disk Encryption Key

echo "$DISK_PASSWD" > /etc/zfs/zroot.key
chmod 000 /etc/zfs/zroot.key

# Setup ZFS Main Volume

zgenhostid

zpool create -f -o ashift=12 \
 -o autotrim=on \
 -R /mnt/gentoo \
 -O compression=lz4 \
 -O acltype=posixacl \
 -O xattr=sa \
 -O relatime=on \
 -O encryption=aes-256-gcm \
 -O keylocation=file:///etc/zfs/zroot.key \
 -O keyformat=passphrase \
 -O mountpoint=none \
 -O canmount=off \
 zroot /dev/disk/by-id/$ZFS_ROOT_DISK

zfs create -o mountpoint=none zroot/ROOT
zfs create -o mountpoint=/ -o canmount=noauto zroot/ROOT/gentoo

# mount root BEFORE creating children

zfs mount zroot/ROOT/gentoo

# I like keeping home and var on their own datasets

zfs create -o mountpoint=/home zroot/home
zfs create -o mountpoint=/var zroot/var

# Needed to book the ZFS volume

zpool set bootfs=zroot/ROOT/gentoo zroot

# Copy ZFS hostid and key into new Gentoo environment

mkdir -p /mnt/gentoo/etc/zfs
cp /etc/hostid /mnt/gentoo/etc/
cp /etc/zfs/zroot.key /mnt/gentoo/etc/zfs/

# Setup EFI

mkfs.fat -F32 "/dev/disk/by-id/$EFI_DISK"

mkdir -p /mnt/gentoo/efi
mount "/dev/disk/by-id/$EFI_DISK" /mnt/gentoo/efi

#!/bin/bash
# t2-fans: Mac Pro 2019 (T2) fan control from max(CPU, GPU) temperature
VERBOSE=true
LOW=50 # °C: at or below, fans go back to Apple automatic control
HIGH=85 # °C: at or above, fans run at max
STEP=100 # RPM: round targets to this step (fewer SMC writes and log lines)

SMC=$(dirname "$(find /sys/devices -path '*APP0001*' -name fan1_min 2>/dev/null | head -1)")
GPU=$(dirname "$(grep -l amdgpu /sys/class/hwmon/hwmon*/name | head -1)")
CPU=$(dirname "$(grep -l coretemp /sys/class/hwmon/hwmon*/name | head -1)")
[ -f "$SMC/fan1_manual" ] || { echo "SMC fan controls not found"; exit 1; }

log() { [ "$VERBOSE" = true ] && echo "$(date '+%F %T') $*"; }

cleanup() {
 for m in "$SMC"/fan*_manual; do echo 0 > "$m"; done
 log "exiting, all fans back to auto"
}
trap cleanup EXIT
trap 'exit' INT TERM

log "started: SMC=$SMC GPU=$GPU CPU=$CPU LOW=${LOW}C HIGH=${HIGH}C"
declare -A LAST

while true; do
 g=$(cat "$GPU/temp2_input" 2>/dev/null || cat "$GPU/temp1_input" 2>/dev/null || echo 0)
 c=$(cat "$CPU"/temp*_input 2>/dev/null | sort -n | tail -1); c=${c:-0}
 gc=$(( g / 1000 )); cc=$(( c / 1000 ))
 t=$(( gc > cc ? gc : cc ))
 changes=""

 for f in "$SMC"/fan*_manual; do
 n=${f%_manual}; name=${n##*/}
 if [ "$t" -le "$LOW" ]; then
 state=auto
 [ "$(cat "$f")" != 0 ] && echo 0 > "$f"
 else
 base=$(cat "${n}_min"); max=$(cat "${n}_max")
 if [ "$t" -ge "$HIGH" ]; then target=$max
 else
 target=$(( base + (max - base) * (t - LOW) / (HIGH - LOW) ))
 target=$(( (target + STEP / 2) / STEP * STEP ))
 [ "$target" -lt "$base" ] && target=$base
 [ "$target" -gt "$max" ] && target=$max
 fi
 state=$target
 [ "$(cat "$f")" != 1 ] && echo 1 > "$f"
 [ "${LAST[$name]}" != "$state" ] && echo "$target" > "${n}_output"
 fi
 if [ "${LAST[$name]}" != "$state" ]; then
 changes+=" $name=$state"
 LAST[$name]=$state
 fi
 done

 [ -n "$changes" ] && log "cpu=${cc}C gpu=${gc}C ->$changes"
 sleep 3
done

#!/sbin/openrc-run
description="Raise Mac Pro fan minimums from CPU/GPU temperature"
command="/usr/local/sbin/t2-fans"
command_background=true
pidfile="/run/${RC_SVCNAME}.pid"
supervisor=supervise-daemon
respawn_delay=5
output_log="/var/log/t2-fans.log"
error_log="/var/log/t2-fans.log"

depend() {
 after modules
}