I had some time to test the ceemmc -x command on the NexBox A95X-B7N
CoreELEC (official) nightly_20200723 (Amlogic-ng.arm) has been successfully migrated from USB Flash Drive to eMMC with the Team CoreELEC ceemmc command line tool.
These instructions are for MS Windows 10 but can easily be modified for other environments.
INSTRUCTIONS
Step 1 can be skipped if the TV Box is already running the latest Nougat 7.1 Firmware
- Update to the latest NexBox A95X Nougat 7.1 Firmware
- With the Rufus utility, create a 2 GB bootable USB Flash Drive containing CoreELEC -ng nightly_20200723
- Boot the TV-Box from USB and enable SSH
- Create SSH tunnel from Windows 10 PC with Putty and run ceemmc -x
NOTE: I had to run ceemmc -x twice.
I noticed the first time the ceemmc command line tool only migrated the flash partition. After running the command again, both flash and storage partition were migrated.
Here is the Putty capture log: CoreELEC (official): nightly_20200723 (Amlogic-ng.arm) - Pastebin.com