BBAI-64 Boot from microSD

I just purchased a AI-64 board and I am trying to boot from microSD card, but I am not sure if it is. I see almost no difference in the system when booting with a microSD and without one.

When booting I always see more activity on eMMC LED.
When I use a web browser to the card I see 403 Forbidden nginx/1.18.0

I have tried 2 different microSD cards and the only difference I have found you see the cards recognized in thunar under Computer, free space in File System reflects the size of the card used.
No card 4.7 Gib, 32GB card 19.8 GiB, 64 GB card 48 GiB available.

How can I tell if I am in fact booting bbai64-debian-11.3-xfce-arm64-2022-06-14-10gb.img.xz from the microSD card. And if I am correct it is not booting form microSD card, any idea what I am doing wrong?

Since both are very similar it’s not easy to tell just from xfce… Best to just run lsblk…

for example this is running from eMMC:

debian@BeagleBone:~$ lsblk
mmcblk0      179:0    0 14.6G  0 disk 
├─mmcblk0p1  179:1    0  128M  0 part /boot/firmware
└─mmcblk0p2  179:2    0 14.5G  0 part /
mmcblk0boot0 179:256  0    4M  1 disk 
mmcblk0boot1 179:512  0    4M  1 disk

If your booting from microSD, the “/” will be on mmcblk1p2 vs mmcblk0p2


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Thank you RobertCNelson, so it is booting from the microSD card.