I recently received a NanoPi R2S w/ Metal Case and grabbed the rk3328-sd-friendlycore-bionic-5.4-arm64-20200904.img.zip, verified the md5sum of the archive, extracted the archive, and wrote the uncompressed image to a micro SD card.

Attempting to boot the NanoPi R2S with this micro SD card results in a flashing SYS led (two pulsing flashes, approximately 1 second delay, repeat).

To diagnose this, I needed to access the UART, meaning I needed to remove the warranty sticker from at least one of the units.

With access to the UART, I was able to captured the attached output for the boot session. The end of which is copied below.

Code: Select all

Loading, please wait...
starting version 237
[    2.660289] usb 5-1: new SuperSpeed Gen 1 USB device number 2 using xhci-hcd
[    2.681172] usb 5-1: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=31.00
[    2.681931] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[    2.682564] usb 5-1: Product: USB 10/100/1000 LAN
[    2.682984] usb 5-1: Manufacturer: Realtek
[    2.683357] usb 5-1: SerialNumber: 000000000000
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
[    8.352257] phy phy-ff450000.syscon:usb2-phy@100.0: charger = USB_DCP_CHARGER
Begin: Waiting for root file system ... Begin: Running /scripts/local-block ... done.
done.
Gave up waiting for root file system device.  Common problems:
 - Boot args (cat /proc/cmdline)
   - Check rootdelay= (did the system wait long enough?)
 - Missing modules (cat /proc/modules; ls /dev)
ALERT!  /dev/mmcblk0p1 does not exist.  Dropping to a shell!


BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu3.2) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs) [   44.447235] mmc0: error -110 whilst initialising SD card
[   44.467866] mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
[   45.841873] mmc0: card never left busy state
[   45.842307] mmc0: error -110 whilst initialising SD card
[   45.858086] mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
[   47.277997] mmc0: card never left busy state
[   47.278430] mmc0: error -110 whilst initialising SD card
[   47.294718] mmc_host mmc0: Bus speed (slot 0) = 100000Hz (slot req 100000Hz, actual 100000HZ div = 0)
[   48.843109] mmc0: card never left busy state
[   48.843547] mmc0: error -110 whilst initialising SD card

Attachments