From f81c62f99e7cd8ef4215f12774c64a3bd93cd56b Mon Sep 17 00:00:00 2001
From: Chris Titus <dfm.titus@gmail.com>
Date: Thu, 21 Oct 2021 17:09:06 -0500
Subject: clear existing btrfs subv

---
 0-preinstall.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/0-preinstall.sh b/0-preinstall.sh
index 041e202..b879d0d 100755
--- a/0-preinstall.sh
+++ b/0-preinstall.sh
@@ -49,6 +49,7 @@ echo "--------------------------------------"
 
 # disk prep
 sgdisk -Z ${DISK} # zap all on disk
+#dd if=/dev/zero of=${DISK} bs=1M count=200 conv=fdatasync status=progress
 sgdisk -a 2048 -o ${DISK} # new gpt disk 2048 alignment
 
 # create partitions
@@ -74,7 +75,7 @@ mkfs.vfat -F32 -n "UEFISYS" "${DISK}1"
 mkfs.btrfs -L "ROOT" "${DISK}2"
 mount -t btrfs "${DISK}2" /mnt
 fi
-
+ls /mnt | xargs btrfs subvolume delete
 btrfs subvolume create /mnt/@
 umount /mnt
 ;;
-- 
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