Added support for installing with BTRFS DUP and RAID1.
This commit is contained in:
@@ -44,32 +44,106 @@ print " - If you intend to use an Advanced Format (e.g. NVMe) drive, verify the
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print "If you need to go back, press Ctrl+C. Otherwise, press enter to continue."
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print "If you need to go back, press Ctrl+C. Otherwise, press enter to continue."
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read
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read
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print "Select storage and filesystem configuration:"
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print " 1 - ext4 (Single disk)"
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print " 2 - BTRFS (Single disk) [Recommended over ext4]"
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print " 3 - BTRFS DUP (Single disk with duplicate data and metadata)"
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print " 4 - BTRFS RAID1 (Two disks with full redundancy)"
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read storage_choice
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case $storage_choice in
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"1")
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storage_mode="single"
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filesystem="ext4"
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print "ext4 on single disk selected."
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;;
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"3")
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storage_mode="single"
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filesystem="btrfs-dup"
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print "BTRFS dup mode selected. Data and metadata will be duplicated on the same disk."
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;;
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"4")
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storage_mode="raid1"
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filesystem="btrfs"
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print "BTRFS RAID1 mode selected. You will need two disks of similar size."
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;;
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*)
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storage_mode="single"
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filesystem="btrfs"
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print "BTRFS on single disk selected."
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;;
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esac
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## Arch Linux Installation Guide Step 1.9 - Partition the disks
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## Arch Linux Installation Guide Step 1.9 - Partition the disks
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# Provide the user a listing of the disks and ask them which they'd like to install to.
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# Provide the user a listing of the disks and ask them which they'd like to install to.
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fdisk -l
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fdisk -l
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print "Disk information from 'fdisk -l' is provided above. Please enter the path to the disk you would like to install Arch Linux to (e.g. /dev/sda)."
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read install_disk
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print "Please confirm your selection by entering the same path again."
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read disk_confirm
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if [ "$install_disk" != "$disk_confirm" ]; then
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if [ "$storage_mode" = "raid1" ]; then
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print "The same disk was not entered both times. Exiting..."
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print "Disk information from 'fdisk -l' is provided above. Please enter the path to the FIRST disk for RAID1 (e.g. /dev/sda)."
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exit 1
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read install_disk
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print "Please confirm your selection by entering the same path again."
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read disk_confirm
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if [ "$install_disk" != "$disk_confirm" ]; then
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print "The same disk was not entered both times. Exiting..."
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exit 1
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fi
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print "Now enter the path to the SECOND disk for RAID1 (e.g. /dev/sdb). This must be a DIFFERENT disk."
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read install_disk_2
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print "Please confirm your selection by entering the same path again."
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read disk_confirm_2
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if [ "$install_disk_2" != "$disk_confirm_2" ]; then
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print "The same disk was not entered both times. Exiting..."
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exit 1
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fi
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if [ "$install_disk" = "$install_disk_2" ]; then
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print "Error: Both disks must be different. You entered the same disk twice. Exiting..."
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exit 1
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fi
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# Final confirmation for RAID1
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print "Last warning: Are you sure you want to install Arch Linux in RAID1 mode to '$install_disk' and '$install_disk_2'? All data on BOTH disks will be wiped. Enter 'I am sure' exactly to confirm, or anything else to cancel."
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read final_confirmation
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if [ "$final_confirmation" != "I am sure" ]; then
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print "Confirmation failed. Exiting..."
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exit 1
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fi
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else
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# Single disk mode
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print "Disk information from 'fdisk -l' is provided above. Please enter the path to the disk you would like to install Arch Linux to (e.g. /dev/sda)."
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read install_disk
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print "Please confirm your selection by entering the same path again."
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read disk_confirm
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if [ "$install_disk" != "$disk_confirm" ]; then
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print "The same disk was not entered both times. Exiting..."
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exit 1
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fi
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# Triple check the user wants to continue installing to install disk.
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print "Last warning: Are you sure you want to install Arch Linux to '$install_disk'? All data on this disk will be wiped. Enter 'I am sure' exactly to confirm, or anything else to cancel."
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read final_confirmation
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if [ "$final_confirmation" != "I am sure" ]; then
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print "Confirmation failed. Exiting..."
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exit 1
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fi
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fi
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fi
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# Triple check the user wants to continue installing to install disk.
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# Wipe all previous file systems from the install disk(s).
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print "Last warning: Are you sure you want to install Arch Linux to '$install_disk'? All data on this disk will be wiped. Enter 'I am sure' exactly to confirm, or anything else to cancel."
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if [ "$storage_mode" = "raid1" ]; then
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read final_confirmation
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print "Wiping existing partition tables from $install_disk and $install_disk_2..."
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wipefs -a $install_disk
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if [ "$final_confirmation" != "I am sure" ]; then
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wipefs -a $install_disk_2
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print "Confirmation failed. Exiting..."
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else
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exit 1
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print "Wiping existing partition table from $install_disk..."
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wipefs -a $install_disk
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fi
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fi
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# Wipe all previous file systems from the install disk.
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print "Wiping existing partition table from $install_disk..."
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wipefs -a $install_disk
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# Partition install disk.
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# Partition install disk.
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print "Partitioning $install_disk..."
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print "Partitioning $install_disk..."
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sgdisk --new 1:0:1G $install_disk # New GPT table, make a new partition 1G in size at the start
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sgdisk --new 1:0:1G $install_disk # New GPT table, make a new partition 1G in size at the start
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@@ -79,42 +153,105 @@ sgdisk --type-code 2:8309 $install_disk # Mark it as Linux LUKS
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# /dev/nvme has an extra charater to identify partition number.
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# /dev/nvme has an extra charater to identify partition number.
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if [[ $install_disk == /dev/nvme* ]]; then
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if [[ $install_disk == /dev/nvme* ]]; then
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# Use "p" in the partition paths for NVMe drives.
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# Use "p" in the partition paths for NVMe drives.
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partition_prefix="${install_disk}p"
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partition_prefix="${install_disk}p"
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else
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else
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# Use just numbers for other drives.
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# Use just numbers for other drives.
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partition_prefix="${install_disk}"
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partition_prefix="${install_disk}"
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fi
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fi
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efi_partition=${partition_prefix}1
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efi_partition=${partition_prefix}1
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root_partition=${partition_prefix}2
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root_partition=${partition_prefix}2
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if [ "$storage_mode" = "raid1" ]; then
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print "Partitioning $install_disk_2..."
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sgdisk --new 1:0:1G $install_disk_2
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sgdisk --typecode 1:ef00 $install_disk_2
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sgdisk --new 2:0:0 $install_disk_2
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sgdisk --type-code 2:8309 $install_disk_2
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# Handle NVMe naming for second disk
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if [[ $install_disk_2 == /dev/nvme* ]]; then
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partition_prefix_2="${install_disk_2}p"
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else
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partition_prefix_2="${install_disk_2}"
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fi
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efi_partition_2=${partition_prefix_2}1
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root_partition_2=${partition_prefix_2}2
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fi
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## Arch Linux Installation Guide Step 1.10 - Format the partitions
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## Arch Linux Installation Guide Step 1.10 - Format the partitions
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print "Formatting ${efi_partition} as FAT32..."
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print "Formatting ${efi_partition} as FAT32..."
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mkfs.fat -F 32 ${efi_partition}
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mkfs.fat -F 32 ${efi_partition}
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if [ "$storage_mode" = "raid1" ]; then
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print "Formatting ${efi_partition_2} as FAT32..."
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mkfs.fat -F 32 ${efi_partition_2}
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fi
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print "Setting up disk encryption..."
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if [ "$storage_mode" = "raid1" ]; then
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print "Please enter your desired encryption passphrase. This will be used for both disks."
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else
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print "Please enter your desired encryption passphrase."
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fi
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read -s encryption_password
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echo
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print "Please confirm your encryption passphrase."
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read -s encryption_password_confirm
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echo
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if [ "$encryption_password" != "$encryption_password_confirm" ]; then
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print "Passphrases do not match. Exiting..."
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exit 1
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fi
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print "Setting up encryption on ${root_partition}..."
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print "Setting up encryption on ${root_partition}..."
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print "Please follow the cryptsetup prompts to enter your desired encryption passphrase."
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echo -n "$encryption_password" | cryptsetup luksFormat --type luks2 --cipher aes-xts-plain64 --hash sha512 --key-size 512 --pbkdf argon2id --pbkdf-force-iterations 8 --pbkdf-memory 4194304 --pbkdf-parallel 4 --use-urandom --key-file - ${root_partition}
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cryptsetup luksFormat --type luks2 --cipher aes-xts-plain64 --hash sha512 --key-size 512 --pbkdf argon2id --pbkdf-force-iterations 8 --pbkdf-memory 4194304 --pbkdf-parallel 4 --use-urandom ${root_partition}
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print "Unlocking ${root_partition}..."
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print "Unlocking ${root_partition}..."
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print "Please enter the passphrase you just used to unlock the newly encrypted partition."
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if [ "$storage_mode" = "raid1" ]; then
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cryptsetup open --allow-discards ${root_partition} cryptroot
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echo -n "$encryption_password" | cryptsetup open --allow-discards --key-file - ${root_partition} cryptroot-primary
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else
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echo -n "$encryption_password" | cryptsetup open --allow-discards --key-file - ${root_partition} cryptroot
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fi
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luks_uuid=$(cryptsetup luksDump ${root_partition} | grep 'UUID:' | awk '{print $2}')
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luks_uuid=$(cryptsetup luksDump ${root_partition} | grep 'UUID:' | awk '{print $2}')
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print "What file system would you like for the root partition?"
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if [ "$storage_mode" = "raid1" ]; then
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print " btrfs (Recommended)"
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print "Setting up encryption on ${root_partition_2}..."
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print " ext4"
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echo -n "$encryption_password" | cryptsetup luksFormat --type luks2 --cipher aes-xts-plain64 --hash sha512 --key-size 512 --pbkdf argon2id --pbkdf-force-iterations 8 --pbkdf-memory 4194304 --pbkdf-parallel 4 --use-urandom --key-file - ${root_partition_2}
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read filesystem
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print "Unlocking ${root_partition_2}..."
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echo -n "$encryption_password" | cryptsetup open --allow-discards --key-file - ${root_partition_2} cryptroot-secondary
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luks_uuid_2=$(cryptsetup luksDump ${root_partition_2} | grep 'UUID:' | awk '{print $2}')
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fi
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# Clear the password from memory
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unset encryption_password
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unset encryption_password_confirm
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case $filesystem in
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case $filesystem in
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"ext4")
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"ext4")
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if [ "$storage_mode" = "raid1" ]; then
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print "Error: ext4 cannot be used with RAID1. Exiting..."
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exit 1
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fi
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print "Formatting /dev/mapper/cryptroot as ext4..."
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print "Formatting /dev/mapper/cryptroot as ext4..."
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mkfs.ext4 /dev/mapper/cryptroot
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mkfs.ext4 /dev/mapper/cryptroot
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;;
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;;
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"btrfs-dup")
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print "Formatting /dev/mapper/cryptroot as btrfs with dup profile..."
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mkfs.btrfs --csum xxhash --data dup --metadata dup /dev/mapper/cryptroot
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;;
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*)
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*)
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print "Formatting /dev/mapper/cryptroot as btrfs..."
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if [ "$storage_mode" = "raid1" ]; then
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mkfs.btrfs --csum xxhash /dev/mapper/cryptroot
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print "Formatting /dev/mapper/cryptroot-primary and /dev/mapper/cryptroot-secondary as btrfs RAID1..."
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mkfs.btrfs --csum xxhash --data raid1 --metadata raid1 /dev/mapper/cryptroot-primary /dev/mapper/cryptroot-secondary
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else
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print "Formatting /dev/mapper/cryptroot as btrfs..."
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mkfs.btrfs --csum xxhash /dev/mapper/cryptroot
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fi
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;;
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;;
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esac
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esac
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@@ -127,7 +264,11 @@ case $filesystem in
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;;
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;;
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*)
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*)
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mount -o "noatime,discard=async" /dev/mapper/cryptroot /mnt
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if [ "$storage_mode" = "raid1" ]; then
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mount -o "noatime,discard=async" /dev/mapper/cryptroot-primary /mnt
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else
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mount -o "noatime,discard=async" /dev/mapper/cryptroot /mnt
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fi
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;;
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;;
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esac
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esac
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@@ -190,19 +331,31 @@ arch-chroot /mnt mkinitcpio -P
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## Arch Linux Installation Guide Step 3.8 - Boot loader
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## Arch Linux Installation Guide Step 3.8 - Boot loader
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print "Installing bootloader..."
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print "Installing bootloader..."
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arch-chroot /mnt bootctl install
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arch-chroot /mnt bootctl install
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arch-chroot /mnt sh -c "cat > /boot/loader/entries/arch.conf" <<EOF
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if [ "$storage_mode" = "raid1" ]; then
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# RAID1 mode: Must unlock both LUKS devices at boot
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arch-chroot /mnt sh -c "cat > /boot/loader/entries/arch.conf" <<EOF
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title Arch Linux
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linux /vmlinuz-linux
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initrd /initramfs-linux.img
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options rd.luks.name=${luks_uuid}=cryptroot-primary rd.luks.name=${luks_uuid_2}=cryptroot-secondary rd.luks.options=${luks_uuid}=discard rd.luks.options=${luks_uuid_2}=discard root=/dev/mapper/cryptroot-primary
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EOF
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else
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# Single disk mode (original)
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arch-chroot /mnt sh -c "cat > /boot/loader/entries/arch.conf" <<EOF
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title Arch Linux
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title Arch Linux
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linux /vmlinuz-linux
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linux /vmlinuz-linux
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initrd /initramfs-linux.img
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initrd /initramfs-linux.img
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options rd.luks.name=${luks_uuid}=cryptroot rd.luks.options=discard root=/dev/mapper/cryptroot
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options rd.luks.name=${luks_uuid}=cryptroot rd.luks.options=discard root=/dev/mapper/cryptroot
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EOF
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EOF
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fi
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arch-chroot /mnt sed -i '/^#timeout 3/s/^#//' /boot/loader/loader.conf
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arch-chroot /mnt sed -i '/^#timeout 3/s/^#//' /boot/loader/loader.conf
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print "Enabling fstrim timer..."
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print "Enabling fstrim timer..."
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arch-chroot /mnt systemctl enable fstrim.timer
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arch-chroot /mnt systemctl enable fstrim.timer
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if [ "$filesystem" = "btrfs" ]; then
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if [ "$filesystem" = "btrfs" ] || [ "$filesystem" = "btrfs-dup" ]; then
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print "Enabling scrub timer..."
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print "Enabling scrub timer..."
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arch-chroot /mnt systemctl enable btrfs-scrub@-.timer
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arch-chroot /mnt systemctl enable btrfs-scrub@-.timer
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fi
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fi
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Reference in New Issue
Block a user