Added sylinux installation for bios systems
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oddlama
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25adbb0b68
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@ -39,10 +39,11 @@ Here is a quick overview of what this script does:
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* Select best gentoo portage mirrors
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* Install git (so you can add your portage overlays later)
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* Install `sys-kernel/vanilla-kernel-bin` (temporarily, until you replace it)
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* Copy kernel to efi partition
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* Create boot entry using efibootmgr
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- EFI: Copy kernel to efi partition
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- EFI: Create boot entry using efibootmgr (or install syslinux for BIOS boot)
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- BIOS: Install syslinux
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* Generate fstab
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* Lets you set a root password
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* Ask for a root password
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Also, optionally the following will be done:
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@ -34,14 +34,20 @@ check_config() {
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[[ -n $DISK_ID_EFI ]] || [[ -n $DISK_ID_BOOT ]] \
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|| die "You must assign DISK_ID_EFI or DISK_ID_BOOT"
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[[ -v "DISK_ID_BOOT" ]] && [[ -v "DISK_ID_TO_UUID[$DISK_ID_BOOT]" ]] \
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|| die "Missing uuid for DISK_ID_BOOT, have you made sure it is used?"
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[[ -v "DISK_ID_EFI" ]] && [[ -v "DISK_ID_TO_UUID[$DISK_ID_EFI]" ]] \
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|| die "Missing uuid for DISK_ID_EFI, have you made sure it is used?"
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[[ -v "DISK_ID_SWAP" ]] && [[ -v "DISK_ID_TO_UUID[$DISK_ID_SWAP]" ]] \
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|| die "Missing uuid for DISK_ID_SWAP, have you made sure it is used?"
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[[ -v "DISK_ID_ROOT" ]] && [[ -v "DISK_ID_TO_UUID[$DISK_ID_ROOT]" ]] \
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|| die "Missing uuid for DISK_ID_ROOT, have you made sure it is used?"
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[[ -v "DISK_ID_BOOT" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_BOOT]" ]] \
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&& die "Missing uuid for DISK_ID_BOOT, have you made sure it is used?"
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[[ -v "DISK_ID_EFI" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_EFI]" ]] \
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&& die "Missing uuid for DISK_ID_EFI, have you made sure it is used?"
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[[ -v "DISK_ID_SWAP" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_SWAP]" ]] \
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&& die "Missing uuid for DISK_ID_SWAP, have you made sure it is used?"
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[[ -v "DISK_ID_ROOT" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_ROOT]" ]] \
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&& die "Missing uuid for DISK_ID_ROOT, have you made sure it is used?"
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if [[ -v "DISK_ID_EFI" ]]; then
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IS_EFI=true
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else
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IS_EFI=false
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fi
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if [[ $INSTALL_ANSIBLE == true ]]; then
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[[ $INSTALL_SSHD == true ]] \
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@ -154,10 +160,11 @@ disk_create_gpt() {
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device_desc="$device"
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fi
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disk_id_to_resolvable[$new_id]="raw:$device"
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local uuid="${DISK_ID_TO_UUID[$new_id]}"
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disk_id_to_resolvable[$new_id]="uuid:$uuid"
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einfo "Creating new gpt partition table ($new_id) on $device_desc"
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sgdisk -Z "$device" >/dev/null \
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sgdisk -Z -U "$uuid" "$device" >/dev/null \
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|| die "Could not create new gpt partition table ($new_id) on '$device'"
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partprobe "$device"
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}
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@ -180,8 +187,9 @@ disk_create_partition() {
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local device="$(resolve_id_to_device "$id")"
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local partuuid="${DISK_ID_TO_UUID[$new_id]}"
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local extra_args=""
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case "$type" in
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'boot') type='ef02' ;;
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'boot') type='ef02' extra_args='--attributes=0:set:2';;
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'efi') type='ef00' ;;
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'swap') type='8200' ;;
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'raid') type='fd00' ;;
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@ -193,7 +201,8 @@ disk_create_partition() {
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disk_id_to_resolvable[$new_id]="partuuid:$partuuid"
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einfo "Creating partition ($new_id) with type=$type, size=$size on $device"
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sgdisk -n "0:0:$arg_size" -t "0:$type" -u 0:"$partuuid" "$device" >/dev/null \
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# shellcheck disable=SC2086
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sgdisk -n "0:0:$arg_size" -t "0:$type" -u 0:"$partuuid" $extra_args "$device" >/dev/null \
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|| die "Could not create new gpt partition ($new_id) on '$device' ($id)"
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partprobe "$device"
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}
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@ -24,6 +24,8 @@ USED_LUKS=false
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# An array of disk related actions to perform
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DISK_ACTIONS=()
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# An associative array from partuuid to disk uuid
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declare -A DISK_PARTUUID_TO_GPT_UUID
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# An associative array to check for existing ids (maps to uuids)
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declare -A DISK_ID_TO_UUID
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# An associative set to check for correct usage of size=remaining in gpt tables
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@ -126,6 +128,7 @@ create_partition() {
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[[ ${arguments[size]} == "remaining" ]] \
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&& DISK_GPT_HAD_SIZE_REMAINING[${arguments[id]}]=true
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DISK_PARTUUID_TO_GPT_UUID[${DISK_ID_TO_UUID[$new_id]}]="${DISK_ID_TO_UUID[$id]}"
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DISK_ACTIONS+=("action=create_partition" "$@" ";")
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}
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@ -89,14 +89,12 @@ install_sshd() {
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|| die "Could not create group 'sshusers'"
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}
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install_kernel() {
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# Install vanilla kernel and efibootmgr, to be able to boot the system.
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einfo "Installing binary vanilla kernel"
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try emerge --verbose sys-kernel/vanilla-kernel-bin sys-boot/efibootmgr
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install_kernel_efi() {
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try emerge --verbose sys-boot/efibootmgr
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# Copy kernel to EFI
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local kernel_version
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kernel_version="$(find "/boot" -name "vmlinuz-*" -printf '%f\n' | sort -V | tail -1)" \
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kernel_version="$(find "/boot" -name "vmlinuz-*" -printf '%f\n' | sort -V | tail -n 1)" \
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|| die "Could not list newest kernel file"
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kernel_version="${kernel_version#vmlinuz-}" \
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|| die "Could not find kernel version"
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@ -112,11 +110,46 @@ install_kernel() {
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local linuxdev
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linuxdev="$(get_device_by_partuuid "$PARTITION_UUID_ROOT")" \
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|| die "Could not resolve partition UUID '$PARTITION_UUID_ROOT'"
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local efidev
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efidev="$(get_device_by_partuuid "$PARTITION_UUID_EFI")" \
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local efipartdev
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efipartdev="$(get_device_by_partuuid "$PARTITION_UUID_EFI")" \
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|| die "Could not resolve partition UUID '$PARTITION_UUID_EFI'"
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local efipartnum="${efidev: -1}"
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try efibootmgr --verbose --create --disk "$PARTITION_DEVICE" --part "$efipartnum" --label "gentoo" --loader '\EFI\vmlinuz.efi' --unicode "root=$linuxdev initrd=\\EFI\\initramfs.img"
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local efipartnum="${efipartdev: -1}"
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local gptuuid="${DISK_PARTUUID_TO_GPT_UUID[$PARTITION_UUID_EFI]}"
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local gptdev
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gptdev="$(get_device_by_uuid "$gptuuid")" \
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|| die "Could not resolve GPT UUID '$gptuuid'"
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try efibootmgr --verbose --create --disk "$gptdev" --part "$efipartnum" --label "gentoo" --loader '\EFI\vmlinuz.efi' --unicode "root=$linuxdev initrd=\\EFI\\initramfs.img"
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}
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install_kernel_bios() {
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try emerge --verbose sys-boot/syslinux
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# Install syslinux MBR record
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einfo "Copying syslinux MBR record"
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local bootdev
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bootdev="$(get_device_by_partuuid "$PARTITION_UUID_BOOT")" \
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|| die "Could not resolve partition UUID '$PARTITION_UUID_BOOT'"
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local gptuuid="${DISK_PARTUUID_TO_GPT_UUID[$PARTITION_UUID_BOOT]}"
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local gptdev
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gptdev="$(get_device_by_uuid "$gptuuid")" \
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|| die "Could not resolve GPT UUID '$gptuuid'"
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try dd bs=440 conv=notrunc count=1 if=/usr/share/syslinux/gptmbr.bin of="$gptdev"
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# Install syslinux
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einfo "Installing syslinux"
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syslinux --install "$bootdev"
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}
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install_kernel() {
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# Install vanilla kernel
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einfo "Installing binary vanilla kernel"
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try emerge --verbose sys-kernel/vanilla-kernel-bin
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if [[ $IS_EFI == "true" ]]; then
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install_kernel_efi
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else
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install_kernel_bios
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fi
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}
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install_ansible() {
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@ -153,10 +186,16 @@ main_install_gentoo_in_chroot() {
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passwd -l root \
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|| die "Could not change root password"
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if [[ $IS_EFI == "true" ]]; then
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# Mount efi partition
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mount_efivars
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einfo "Mounting efi partition"
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mount_by_partuuid "$PARTITION_UUID_EFI" "/boot/efi"
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else
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# Mount boot partition
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einfo "Mounting boot partition"
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mount_by_partuuid "$PARTITION_UUID_BOOT" "/boot"
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fi
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# Sync portage
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einfo "Syncing portage tree"
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@ -193,8 +232,13 @@ main_install_gentoo_in_chroot() {
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|| die "Could not overwrite /etc/fstab"
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echo "PARTUUID=$PARTITION_UUID_ROOT / ext4 defaults,noatime,errors=remount-ro,discard 0 1" >> /etc/fstab \
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|| die "Could not append entry to fstab"
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if [[ $IS_EFI == "true" ]]; then
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echo "PARTUUID=$PARTITION_UUID_EFI /boot/efi vfat defaults,noatime,fmask=0022,dmask=0022,noexec,nodev,nosuid,discard 0 2" >> /etc/fstab \
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|| die "Could not append entry to fstab"
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else
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echo "PARTUUID=$PARTITION_UUID_BOOT /boot vfat defaults,noatime,fmask=0022,dmask=0022,noexec,nodev,nosuid,discard 0 2" >> /etc/fstab \
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|| die "Could not append entry to fstab"
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fi
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if [[ -v "PARTITION_UUID_SWAP" ]]; then
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echo "PARTUUID=$PARTITION_UUID_SWAP none swap defaults,discard 0 0" >> /etc/fstab \
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|| die "Could not append entry to fstab"
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@ -245,7 +289,9 @@ main_install() {
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gentoo_umount
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install_stage3
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mount_efivars
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[[ $IS_EFI == "true" ]] \
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&& mount_efivars
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gentoo_chroot "$GENTOO_INSTALL_REPO_BIND/scripts/main.sh" install_gentoo_in_chroot
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gentoo_umount
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}
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@ -18,8 +18,7 @@ eerror() {
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die() {
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eerror "$*"
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echo "Aborted." >&2
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kill "$GENTOO_INSTALL_REPO_SCRIPT_PID" >/dev/null
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kill "$GENTOO_INSTALL_REPO_SCRIPT_PID"
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exit 1
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}
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