My Cloud OS5 Firmware Notes

This thread is a place for me to post random odds and ends about My Cloud OS5, and a good place to start is the structure of firmware bin file itself.

Firmware File Structure:

	+--------------------------+
	| CONTROL_HEADER           | 128 bytes
	+--------------------------+
	|                          |
	| FILE_1_DATA              | uImage (kernel)
	|                          |
	+--------------------------+
	|                          |
	| FILE_2_DATA              | uRamdisk (initramfs)
	|                          |
	+--------------------------+
	|                          |
	| FILE_3_DATA              | image.cfs (root filesystem)
	|                          |
	+--------------------------+
	|                          |
	| FILE_4_DATA              | default.tar.gz (configuration)
	|                          |
	+--------------------------+
	| FILE_EXTENDED_HEADER     | 96 bytes
	+--------------------------+
	|                          |
	| FILE_EXTENDED_DATA       | uP.bin (ROM file)
	|                          |
	+--------------------------+
	| FILE_EXTENDED_HEADER     | 96 bytes
	+--------------------------+
	|                          |
	| FILE_EXTENDED_DATA       | grub.tgz (bootloader)
	|                          |
	+--------------------------+
	:                          :
	: ADDITIONAL_FILES         :
	:                          :
	+--------------------------+

Hi @Cerberus ,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting: