user
pacstrap -c -G -i -M -C /mnt/etc/pacman.conf /mnt base linux
gives error
==> Creating install root at /mnt
==> ERROR: (BUG): attempting to overwrite existing EXIT trap
arch-chroot gives the same error
(plain chroot does not give this error, but pacstrap is not available then)
Skatanafas
/mnt must be empty before an installation. Apparently there is something there for the first step to begin and the installer as a precaution preventing to overwrite an existing system or other data exits.
Make sure you mount an empty formatted partition before you begin.
ls -al /mnt before you start the installer
chroot
There's a new installer available (released on 06/08). Have you tried it?