I put it here because it was specific to the commands and options that were being discussed in this thread.
This thread is for the 921, you were discussing the 841.
Yes the commands for them are similar but - for many of the commands the values that the commands accept are different eg:
-avalon8 (or 9)-voltage-level and voltage-level-offset and the -freq values. Those have different ranges and step values that they will accept.
The 841 thread covers all of the commands and values that the 841 will accept.
Here are ones in that thread from PhilTa boot, several of the 841 commands seem to have no effect on the 921 so....