Hi Mike!
These are both issues I’ve encountered.
As for upgrading the child canisters, there’s no way to do that as motoko doesn’t have the necessary hooks into the ic api.
As per This.
The approach I was going to take was to use ic-repl making a script and calling an ic-repl script to upgrade each of the canisters, from a separate was generated with just the bucket code. I haven’t worked on this project in 2 months, but I’m hoping to get back on that soon. I got stuck there as I wasn’t able to get . Ic repl to work.
As for getting all the chunks to download, I’ve ran into a few issues. Make sure the url is raw.ic0.app
However I saw a response to one of my earlier posts, and I found a bug with my code as well. when I found out about this so maybe once I fix that the chunkimg will work
Thanks for your response and contribution! I’ve been stuck on that for a while!