login: root password: password legacy kernel image update to the current version of the rootfs 2020.11.15 kernel version 4.4.246 Attention! ---------- on the rock64 eMMC is defined as /dev/mmcblk0 a SDcard how /dev/mmcblk1 installation on a sdcard Unpack the IMAGE file and record by running the following on the SD card ( /dev/mmcblk0 = your sd card device ): dd if=slarm64-current-*-base-rootfs-*-build-*.img of=/dev/mmcblk0 bs=1M or zstdcat slarm64-current-*-base-rootfs-*-build-*.img.zst > /dev/mmcblk0 installation on a eMMC Flash the image to micro SD, power up the board with micro SD and login Copy the image file to micro SD by using SFTP. The image file must be in .img. note : root user are not allow transfer file to micro SD. After finish copy the file, power off the board and add eMMC module to the board Bootup the board, run below command for flashing to eMMC module >>dd if=slarm64-current-*-base-rootfs-*-build-*.img of=/dev/mmcblk0 bs=10M example : dd if=slarm64-current-*-xfce-rootfs-*-build-*.img of=/dev/mmcblk0 bs=10M then edit 2 files in eMMC module: >> mount /dev/mmcblk0p1 /media >> echo "rootdev=/dev/mmcblk0p1" >> /media/boot/uEnv.txt >> sed -i 's:mmcblk1p1:mmcblk0p1:' /media/etc/fstab After done, power off board and remove micro SD. Then bootup with only eMMC module. 2 version of the transfer a system with the SD to eMMC, you need to boot from the start and run the script: setup or setup.sh Multimedia ---------- The video is played by the MPV player, which is configured with the default profile x11 (for playing divx/xvid) and the profile rkmpp (for playing h264/h265/VP9 720p,1080p) example: mpv --profile=rkmpp videofile.{mkv,mp4}