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#!/usr/bin/env bash
# disk.sh - Disk partitioning functions for archangel installer
# Source this file after common.sh
#############################
# Partition Disks
#############################
# Partition a single disk for ZFS/Btrfs installation
# Creates: EFI partition (512M) + root partition (rest)
partition_disk() {
local disk="$1"
local efi_size="${2:-512M}"
info "Partitioning $disk..."
# Wipe existing partition table
sgdisk --zap-all "$disk" || error "Failed to wipe $disk"
# Create EFI partition (512M, type EF00)
sgdisk -n 1:0:+${efi_size} -t 1:EF00 -c 1:"EFI" "$disk" || error "Failed to create EFI partition on $disk"
# Create root partition (rest of disk, type BF00 for ZFS or 8300 for Linux)
sgdisk -n 2:0:0 -t 2:BF00 -c 2:"ROOT" "$disk" || error "Failed to create root partition on $disk"
# Notify kernel of partition changes
partprobe "$disk" 2>/dev/null || true
sleep 1
info "Partitioned $disk: EFI=${efi_size}, ROOT=remainder"
}
# Partition multiple disks (for RAID configurations)
partition_disks() {
local efi_size="${1:-512M}"
shift
local disks=("$@")
for disk in "${disks[@]}"; do
partition_disk "$disk" "$efi_size"
done
}
#############################
# Partition Helpers
#############################
# Get EFI partition path for a disk
get_efi_partition() {
local disk="$1"
if [[ "$disk" =~ nvme ]]; then
echo "${disk}p1"
else
echo "${disk}1"
fi
}
# Get root partition path for a disk
get_root_partition() {
local disk="$1"
if [[ "$disk" =~ nvme ]]; then
echo "${disk}p2"
else
echo "${disk}2"
fi
}
# Get all root partitions from disk array
get_root_partitions() {
local disks=("$@")
local parts=()
for disk in "${disks[@]}"; do
parts+=("$(get_root_partition "$disk")")
done
printf '%s\n' "${parts[@]}"
}
# Get all EFI partitions from disk array
get_efi_partitions() {
local disks=("$@")
local parts=()
for disk in "${disks[@]}"; do
parts+=("$(get_efi_partition "$disk")")
done
printf '%s\n' "${parts[@]}"
}
#############################
# EFI Partition Management
#############################
# Format EFI partition
format_efi() {
local partition="$1"
local label="${2:-EFI}"
info "Formatting EFI partition: $partition"
mkfs.fat -F32 -n "$label" "$partition" || error "Failed to format EFI: $partition"
}
# Format all EFI partitions
format_efi_partitions() {
local disks=("$@")
local first=true
for disk in "${disks[@]}"; do
local efi=$(get_efi_partition "$disk")
if $first; then
format_efi "$efi" "EFI"
first=false
else
format_efi "$efi" "EFI2"
fi
done
}
# Mount EFI partition
mount_efi() {
local partition="$1"
local mount_point="${2:-/mnt/efi}"
mkdir -p "$mount_point"
mount "$partition" "$mount_point" || error "Failed to mount EFI at $mount_point"
info "Mounted EFI: $partition -> $mount_point"
}
#############################
# Disk Selection (Interactive)
#############################
# Interactive disk selection using fzf
select_disks() {
local available
available=$(list_available_disks)
if [[ -z "$available" ]]; then
error "No available disks found"
fi
step "Select installation disk(s)"
prompt "Use Tab to select multiple disks for RAID, Enter to confirm"
local selected
if has_fzf; then
selected=$(echo "$available" | fzf --multi --prompt="Select disk(s): " --height=15 --reverse)
else
echo "$available"
read -rp "Enter disk path(s) separated by space: " selected
fi
[[ -z "$selected" ]] && error "No disk selected"
# Extract just the device paths (remove size/model info)
SELECTED_DISKS=()
while IFS= read -r line; do
local disk=$(echo "$line" | cut -d' ' -f1)
SELECTED_DISKS+=("$disk")
done <<< "$selected"
info "Selected disks: ${SELECTED_DISKS[*]}"
}
#############################
# RAID Level Selection
#############################
select_raid_level() {
local num_disks=${#SELECTED_DISKS[@]}
if [[ $num_disks -eq 1 ]]; then
RAID_LEVEL=""
info "Single disk - no RAID"
return
fi
step "Select RAID level"
local options=()
options+=("mirror - Mirror data across disks (recommended)")
if [[ $num_disks -ge 3 ]]; then
options+=("raidz1 - Single parity, lose 1 disk capacity")
fi
if [[ $num_disks -ge 4 ]]; then
options+=("raidz2 - Double parity, lose 2 disks capacity")
fi
local selected
selected=$(fzf_select "RAID level:" "${options[@]}")
RAID_LEVEL=$(echo "$selected" | cut -d' ' -f1)
info "Selected RAID level: $RAID_LEVEL"
}
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