Hi. I've tested pacman 4.0.0rc2-1 on a fresh arch netinstall in virtualbox to test the new signature checking. I followed the instructions on this page (the rc2 announcement): http://mailman.archlinux.org/pipermail/arch-dev-public/2011-September/021632... First I did a full system upgrade with: # pacman -Syyu then I installed pacman rc2 with: # pacman -U pacman-4.0.0rc2-1-i686.pkg.tar.gz install finished without errors. Then I did: # pacman-key --init which yielded the following: "gpg: /etc/pacman.d/gnupg/trustdb.gpg: trustdb createdgpg: no ultimately trusted keys foundgpg: Generating pacman keychain master key... Not enough random bytes available. Please do some other work to givethe OS a chance to collect more entropy! (Need 284 more bytes)" I waited for a while but the command never finished. I tried to reboot, ran "pacman-key --init" once again and got the same message as above but with "(Need 282 more bytes)" instead.Waited for a while to see if it would finish but there was no progress. I hope this feedback will help pacman development. Please let me know if I should provide more info. (I've not tested the x86-64 version yet).