About Debian: Getting Started with the STM32MP157

I’m trying according to this following.

Debian: Getting Started with the STM32MP157

When I reach the end, insert the created SD card into STM32MP157C-DK2 and start it
I get “Unrecognized filesystem type” and cannot start.
What should i do?

-------------- Erro log ----------------------

Model: STMicroelectronics STM32MP157C-DK2 Discovery Board
Board: stm32mp1 in basic mode (st,stm32mp157c-dk2)
Board: MB1272 Var2.0 Rev.C-01
DRAM:  512 MiB
- MPU : 650 MHz
- MCU : 208.878 MHz
- AXI : 266.500 MHz
- PER : 24 MHz
- DDR : 533 MHz
WDT:   Started with servicing (32s timeout)
NAND:  0 MiB
MMC:   STM32 SD/MMC: 0
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
Net:   eth0: ethernet@5800a000
Hit any key to stop autoboot:  0
Boot over mmc0!
switch to partitions #0, OK
mmc0 is current device
** Unrecognized filesystem type **

Hi @NAK , this looks like the file system was not created, did you see any errors when you ran:

Format Partition:

for: DISK=/dev/mmcblkX
sudo mkfs.ext4 -L rootfs ${DISK}p4
for: DISK=/dev/sdX
sudo mkfs.ext4 -L rootfs ${DISK}4