The do_install() function is run under pseudo in order to create packages with
correct file-permissions. By issuing "cp -a" to install files, we leak
build user/group permissions into the packages, since the do_unpack() function
is executed as the regular build user. Replace it with -P, so that we at least
keep symlinks.
Also drop -x (--one-file-system) since it's not needed.
This was tested by comparing the output of "ls -lR --time-style=+ image/"
before and after the change.
Signed-off-by: Jacob Kroon <jacob.kroon@mikrodidakt.se> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>