Package delta update

Update Modules
1

I wanted to know if there is a way to have only files that have changes in a package be updated inorder to save further on bandwidth cost.

I understand that there is delta update for rootfs but is there a way to create a delta update module for packages.

Regards,
Bosco Jacinto

2

Hello @boscorently!

There is no such thing provided upstream, but it certainly can implemented according to your needs as a custom update module, see also here. Depending on the specifics of the package, and the changing things, it might also be worth taking versioning into account.

Greetz,
Josef

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3

Thanks @TheYoctoJester I will look at the links you provided. Will understand in depth and get back.

Regards,
Bosco Jacinto

4

I’m also interested in this, but I’m also wondering how package delta updates would work with the " Automatic assignment of robust delta updates" feature of Mender Enterprise. Is there a way to get that feature for packages, not just the rootfs?

5

Hi @mho,

Well, it is not something that exists already. I just wanted to convey the idea that it is absolutely possible to implement it for a specific use case using the linked mechanisms. For the officially supported modules and client, I am not aware of anything related being on the roadmap currently, sorry.

Greetz,
Josef

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