diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4745c86..8b6d568 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -37,7 +37,7 @@ jobs:
     - name: Create BOOT filesystem
       run: sudo mkfs.vfat -F32 /dev/loop254p1
     - name: Create SYSTEM filesystem
-      run: sudo mkfs.btrfs /dev/loop254p2
+      run: sudo mkfs.ext4 /dev/loop254p2
     - name: Create HOME filesystem
       run: sudo mkfs.exfat /dev/loop254p3
     - name: Mount SYSTEM filesystem
diff --git a/cmdline.txt b/cmdline.txt
index 4037e4d..8fb9b12 100644
--- a/cmdline.txt
+++ b/cmdline.txt
@@ -1 +1 @@
-dwc_otg.lpm_enable=0 console=ttyAMA1,115200n8 console=tty1 root=/dev/mmcblk0p2 rootfstype=btrfs elevator=deadline fsck.repair=yes rootwait net.ifnames=0
+dwc_otg.lpm_enable=0 console=ttyAMA1,115200n8 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait net.ifnames=0
diff --git a/fstab b/fstab
index b1f4a89..af473bf 100644
--- a/fstab
+++ b/fstab
@@ -1,3 +1,3 @@
 /dev/mmcblk0p1 /boot/ vfat defaults 0 0
-/dev/mmcblk0p2 / btrfs defaults 0 0 
+/dev/mmcblk0p2 / ext4 defaults 0 0 
 /dev/mmcblk0p3 /home/pi exfat defaults,uid=4000,gid=5000,dmask=007,fmask=117 0 0