Failed to transition from arch x32.

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EDIT: Include original bug report from attachment

I followed directions to migrate from Arch in a librebooted ThinkPad T60 (/etc/makepackage.conf, CARCH="pentium4")
During the process, several issues arised. Finally I was not able to transition to Parabola.

# Issue 1
pacman: All trackers return "not valid 404".
- "Solution": replace "$arch" at the end of the string of any mirror with "i686" at /etc/pacman.d/mirrorlist

# Issue 2
pacman: Returns not signed error.
Packages (all) do not have a valid architecture.
- "Solution": pacman.conf to not check for signatures

# Issue 3 -- pacman -Suu (after pacman.conf modification)
pacman: Packages (all) do not have a valid architecture.