[ 1.074939] EXT4-fs (vda): couldn't mount RDWR because of unsupported optional features (4000)
[ 1.078049] init: [libfs_mgr]__mount(source=/dev/block/vda,target=/system,type=ext4)=-1: Invalid argument
[ 1.081515] init: Failed to mount /system: Invalid argument
[ 1.084120] init: Failed to mount required partitions early ...
[ 1.096129] init: #00 pc 00000000000e90a0 /init
[ 1.097856] init: #01 pc 000000000006c4d8 /init
good. So,I should modify the right python script which build the system.img file. Anyway I don't know which is the right one. BTW I copied all the python files that have been used to build the android images on my google drive,here :
what I'm asking is if someone can identify the right python file and if he can modify it a little bit,like suggested on the unix stack exchange site. My hope is that this little modification will fix the problem so that I can emulate android with qemu-kvm on my jetson nano.