From 48dc88b0c57e428b5a17293a8cd616d1940e404f Mon Sep 17 00:00:00 2001
From: fenris <fabian.hanrath@posteo.de>
Date: Thu, 9 Dec 2021 17:59:48 +0100
Subject: [PATCH] ask user if the install drive is a ssd and set the btrfs ssd
 option accordingly remove space_cache mount option because btrfs-progs uses
 Free Space Tree (space_cache=v2) since version 5.15 by default. see:
 https://wiki.tnonline.net/w/Btrfs/Space_Cache

---
 0-preinstall.sh |  6 +++---
 startup.sh      | 16 ++++++++++++++++
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/0-preinstall.sh b/0-preinstall.sh
index ddc03c9..5a16266 100755
--- a/0-preinstall.sh
+++ b/0-preinstall.sh
@@ -74,9 +74,9 @@ createsubvolumes () {
 }
 
 mountallsubvol () {
-    mount -o noatime,compress=zstd,space_cache,commit=120,subvol=@home /dev/mapper/ROOT /mnt/home
-    mount -o noatime,compress=zstd,space_cache,commit=120,subvol=@tmp /dev/mapper/ROOT /mnt/tmp
-    mount -o noatime,compress=zstd,space_cache,commit=120,subvol=@.snapshots /dev/mapper/ROOT /mnt/.snapshots
+    mount -o ${mountoptions},subvol=@home /dev/mapper/ROOT /mnt/home
+    mount -o ${mountoptions},subvol=@tmp /dev/mapper/ROOT /mnt/tmp
+    mount -o ${mountoptions},subvol=@.snapshots /dev/mapper/ROOT /mnt/.snapshots
     mount -o subvol=@var /dev/mapper/ROOT /mnt/var
 }
 if [[ "${DISK}" == "nvme" ]]; then
diff --git a/startup.sh b/startup.sh
index bc5f0c9..7e58783 100644
--- a/startup.sh
+++ b/startup.sh
@@ -90,6 +90,20 @@ Please select key board layout from this list
 read -p "Your key boards layout:" keymap
 echo "keymap=$keymap" >> setup.conf
 }
+drivessd () {
+echo -ne "
+Is this an ssd? yes/no:
+"
+read ssd_drive
+
+case $ssd_drive in
+    y|Y|yes|Yes|YES)
+    echo "mountoptions=noatime,compress=zstd,ssd,commit=120" >> setup.conf;;
+    n|N|no|NO|No)
+    echo "mountoptions=noatime,compress=zstd,commit=120" >> setup.conf;;
+    *) echo "Wrong option. Try again";drivessd;;
+esac
+}
 diskpart () {
 lsblk
 echo -ne "
@@ -103,6 +117,8 @@ Please enter disk to work on: (example /dev/sda):
 "
 read option
 echo "DISK=$option" >> setup.conf
+
+drivessd
 }
 userinfo () {
 echo -ne "Please enter username: "