[SOLVED] Make Pacman cache packages installed with -U

Question

When installing a package with -U, pacman doesn't cache packages as it does when installing with -S. Is there a way to change this behavior?
I read somewhere that specifying the package's full path and prepending "file://", as in "pacman -U file://path/to/package.pkg.tar.xz", but this often complains of an "invalid or corrupted package (PGP signature)".
How can I make pacman always copy installed packages to the cache?
MOD EDIT: change 'closed' to 'solved' in title to avoid confusion
Last edited by fukawi2 (2013-07-06 13:09:21)

Answer 1

You can't.  This has been discussed on the bugtracker several times.
https://bugs.archlinux.org/task/35699
https://bugs.archlinux.org/task/31243
https://bugs.archlinux.org/task/15143
https://bugs.archlinux.org/task/18012
If you're building the packages yourself with makepkg, you can set PKGDEST to your cache in makepkg.conf.  Otherwise you could write a small pacman wrapper that copies the package after installing it.