On 2016-12-20, Simon H <[email protected]> wrote: > Got Debian working nicely on an allwinner device with SD boot. > > The uboot variables seem to be stored in a file boot.scr in mmcblk0p1 > (or are they in /boot/boot.scr?)
The u-boot environment is not typically stored in a file on allwinner/sunxi platforms, rather it is usually stored on the raw deviec of the boot media (SD/eMMC/NAND) directly at an offset. The boot.scr is generated by flash-kernel, and you can use /etc/default/flash-kernel to set some values such as the boot arguments passed to the kernel. Since allwinner platforms with mainline u-boot support distro_bootcmd, you shouldn't typically need to change the default environment, the flash-kernel boot scripts should work out of the box. live well, vagrant
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