On 2024-09-27, Pierre Dupond <76nem...@gmx.ch> wrote: > Thanks for your reply. Unfortunately, this don't seem to work since > the nano pi r6s device does not recognise the sd card as > a bootable device. > > I have used the two following commands (on a linux machine, > since the openbsd OS is installed in a virtual machine where the access > to the sd card are not very convenient). > > dd if=install75.img of=/dev/sdd bs=8M status=progress oflag=sync > dd if=u-boot-rockchip.bin of=/dev/sdd seek=64 bs=4096 status=progress > > The documentation mentions "seek=64" but only for the soc "rockchip 356x" > and not > the Rockchip "RK3588" (used in nanopi r6s).
Not sure where you got bs=4096 from. "seek" is specified in blocks. Is it any better if you try the default (512)?. -- Please keep replies on the mailing list.