From 6f25eae01598c9f66d7c6f85ce9a819ddedc8236 Mon Sep 17 00:00:00 2001
From: oddlama <oddlama@oddlama.org>
Date: Tue, 1 Jun 2021 02:50:08 +0200
Subject: [PATCH] Use wipefs before creating partitions or formatting

---
 configure            |  4 ++--
 scripts/functions.sh | 13 +++++++++++++
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 2d7ecf9..72a6827 100755
--- a/configure
+++ b/configure
@@ -328,7 +328,7 @@ function load_default_config() {
 
 	function disk_configuration() {
 		#create_zfs_centric_layout swap=8GiB type=efi encrypt=true pool_type=standard /dev/sdX
-		create_single_disk_layout swap=8GiB type=efi luks=true root_fs=ext4 /dev/sdX
+		create_classic_single_disk_layout swap=8GiB type=efi luks=true root_fs=ext4 /dev/sdX
 	}
 
 	SYSTEMD=true
@@ -830,7 +830,7 @@ function PARTITIONING_ROOT_FS_menu()  {
 	fi
 }
 
-function PARTITIONING_USE_LUKS_tag()   { echo " ├ Use LUKS"; }
+function PARTITIONING_USE_LUKS_tag()   { echo " ├ LUKS Encryption"; }
 function PARTITIONING_USE_LUKS_label() { on_off_label "$PARTITIONING_USE_LUKS" " ├ "; }
 function PARTITIONING_USE_LUKS_show()  { [[ $PARTITIONING_SCHEME != "custom" ]] && one_of "$PARTITIONING_SCHEME" "classic_single_disk" "btrfs_centric"; }
 function PARTITIONING_USE_LUKS_help()  { echo "Determines if LUKS will be used to encrypt your root partition. You can export the desired encryption key via export GENTOO_INSTALL_ENCRYPTION_KEY='...' before installing if you don't want to be asked."; }
diff --git a/scripts/functions.sh b/scripts/functions.sh
index e80b2fb..cbd417a 100644
--- a/scripts/functions.sh
+++ b/scripts/functions.sh
@@ -180,6 +180,8 @@ function disk_create_gpt() {
 	local ptuuid="${DISK_ID_TO_UUID[$new_id]}"
 
 	einfo "Creating new gpt partition table ($new_id) on $device_desc"
+	wipefs --quiet --all --force "$device" \
+		|| die "Could not erase previous file system signatures from '$device'"
 	sgdisk -Z -U "$ptuuid" "$device" >/dev/null \
 		|| die "Could not create new gpt partition table ($new_id) on '$device'"
 	partprobe "$device"
@@ -358,7 +360,11 @@ function disk_format() {
 	local device
 	device="$(resolve_device_by_id "$id")" \
 		|| die "Could not resolve device with id=$id"
+
 	einfo "Formatting $device ($id) with $type"
+	wipefs --quiet --all --force "$device" \
+		|| die "Could not erase previous file system signatures from '$device' ($id)"
+
 	case "$type" in
 		'bios'|'efi')
 			if [[ -v "arguments[label]" ]]; then
@@ -413,6 +419,7 @@ function format_zfs_standard() {
 	local devices=("$@")
 
 	einfo "Creating zfs pool on $devices_desc"
+
 	local extra_args=()
 	if [[ "$encrypt" == true ]]; then
 		extra_args+=(
@@ -476,6 +483,9 @@ function disk_format_zfs() {
 	done
 	devices_desc="${devices_desc:0:-2}"
 
+	wipefs --quiet --all --force "${devices[@]}" \
+		|| die "Could not erase previous file system signatures from $devices_desc"
+
 	if [[ "$pool_type" == "custom" ]]; then
 		format_zfs_custom "$encrypt" "$devices_desc" "${devices[@]}"
 	else
@@ -511,6 +521,9 @@ function disk_format_btrfs() {
 	done
 	devices_desc="${devices_desc:0:-2}"
 
+	wipefs --quiet --all --force "${devices[@]}" \
+		|| die "Could not erase previous file system signatures from $devices_desc"
+
 	# Collect extra arguments
 	extra_args=()
 	if [[ "${#devices}" -gt 1 ]] && [[ -v "arguments[raid_type]" ]]; then