modprobe md_mod; modprobe raid1; 
echo 0 > /proc/sys/dev/raid/speed_limit_max ; 
for disk in $(find /dev/md*);                               \
do                                                              \
	echo Stopping md $disk;					\
        mdadm --stop $disk;                                         \
done;                                                           \
for disk in $(find /dev/sd[a-z] /dev/nvme[01]n1);                               \
do                                                              \
	echo Clearing disk $disk;				\
        dd if=/dev/zero of=$disk bs=512 seek=$(( $(blockdev --getsz $disk) - 1024 )) count=1024; \
        dd bs=1M count=1000 if=/dev/zero of=$disk;              \
done;                                                           \
sync;  

echo start=2048, size=250M, type=fd |sfdisk /dev/sda 
echo start=2048, size=250M, type=fd |sfdisk /dev/sdb 
