dmsetup remove_all
wipefs -a --force /dev/sda1
wipefs -a --force /dev/sda2
wipefs -a --force /dev/sda3
wipefs -a --force /dev/sda4
mkfs -t bcachefs /dev/sda3
mkfs -t bcachefs /dev/sda4
mkfs -t bcachefs /dev/sda1
mkfs -t bcachefs /dev/sda2
mkdir -p /fs/sda1
modprobe bcachefs
mount -t bcachefs /dev/sda1 /fs/sda1