[Solved] 19.07.xx own build unflashable

For Developers
8

unflashable board :

root@NAS:~# cat /proc/cmdline 
console=ttyMV0,115200 earlycon=ar3700_uart,0xd0012000 root=/dev/mmcblk0p2 rw ip=0.0.0.0:0.0.0.0:10.4.50.254:255.255.255.0:marvell:eth0:none nfsroot=0.0.0.0:/dev/mmcblk0p2

correct board :

root@LPM:~# cat /proc/cmdline 
console=ttyMV0,115200 earlycon=ar3700_uart,0xd0012000 root=/dev/mmcblk0p2 rw rootwait net.ifnames=0 biosdevname=0

test :

root@NAS:~# fw_setenv bootcmd 'mmc dev 1; ext4load mmc 1:1 $kernel_addr $image_name; ext4load mmc 1:1 $fdt_addr $fdt_name; setenv bootargs $console root=/dev/mmcblk0p2 rw rootwait net.ifnames=0 biosdevname=0; booti $kernel_addr - $fdt_addr'

reboot

then:

root@NAS:~# cat /proc/cmdline 
console=ttyMV0,115200 earlycon=ar3700_uart,0xd0012000 root=/dev/mmcblk0p2 rw rootwait net.ifnames=0 biosdevname=0


root@NAS:~# sysupgrade -T openwrt-19.07.3-mvebu-cortexa53-globalscale_espressobin-v7-emmc-ext4-sdcard.img.gz 
Image not in /tmp, copying...
Reading partition table from bootdisk...
Reading partition table from image...
root@NAS:~#

OK = fixed !