bbb failed boot with VFS: Unable to mount root fs on unknown-block(0,0)

I burn image am335x-debian-11.7-iot-armhf-2023-09-02-4gb.img.xz guide with Create SD Card using bmap-tools.
But after I insert the sd card i get errors as:

[    2.709282] 0109           65536 ram9
[    2.709290]  (driver?)
[    2.715454] 010a           65536 ram10
[    2.715461]  (driver?)
[    2.721737] 010b           65536 ram11
[    2.721746]  (driver?)
[    2.728011] 010c           65536 ram12
[    2.728019]  (driver?)
[    2.734296] 010d           65536 ram13
[    2.734305]  (driver?)
[    2.740583] 010e           65536 ram14
[    2.740591]  (driver?)
[    2.746849] 010f           65536 ram15
[    2.746857]  (driver?)
[    2.753195] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    2.761502] CPU: 0 PID: 1 Comm: swapper Not tainted 6.1.46-g1d4b5da681 #1
[    2.768324] Hardware name: Generic AM33XX (Flattened Device Tree)
[    2.774454]  unwind_backtrace from show_stack+0x10/0x14
[    2.779733]  show_stack from dump_stack_lvl+0x24/0x2c
[    2.784824]  dump_stack_lvl from panic+0x104/0x318
[    2.789649]  panic from mount_block_root+0x15c/0x1f8
[    2.794653]  mount_block_root from prepare_namespace+0x150/0x18c
[    2.800696]  prepare_namespace from kernel_init+0x18/0x12c
[    2.806217]  kernel_init from ret_from_fork+0x14/0x2c
[    2.811298] Exception stack(0xe0009fb0 to 0xe0009ff8)
[    2.816373] 9fa0:                                     00000000 00000000 00000000 00000000
[    2.824588] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    2.832801] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    2.839452] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---

I put the full err log in attachment.
eee.log (17.5 KB)

Looking at the log, you either grabbed the wrong burned microSD or booted with the eMMC, as it’s booting arago… you can hold the usr button before and hold while you power up to force the microsd.

thanks, after I press S2 button, bbb boot from mmc0(sdcard) ans success.