Something like

d-i preseed/late_command string in-target sed -i 's|//pkgmaster.|//deb.|' /etc/apt/sources.list

Please use deb.devuan.org so that the load gets spread out over all the mirrors in the round-robin.

That's what I figured, but thank you for the confirmation sir.

I'm working on the latest MiyoLinux release based on Chimaera. I saw (and read) the Chimaera release notes. As such, I saw what the release notes noted in regard to the sources.list.

My conundrum is in regard to said sources.list...

The net installer places security updates as this in the sources.list...

deb http://pkgmaster.devuan.org/merged chimaera-security main

However, the release notes say to use...

deb http://deb.devuan.org/merged chimaera-security main

I realize the Release Notes should most likely be followed; however, I just wanted to double-check before I release something that may give users a nervous-jerkdown.

So, my question is...which is correct to use in the sources.list?

EDIT: I used the "Expert Install" option of the netinstall...'cause I'm an expert n'stuff.