PREUN

/bin/sh

if [ "$1" = "0" ]; then
  cd /var/lib/urpmi
  rm -f compss provides depslist* descriptions.* *.cache hdlist.* synthesis.hdlist.* list.*
  cd /var/cache/urpmi
  rm -rf partial/* headers/* rpms/*
fi
exit 0

POSTIN

/usr/bin/perl

use urpm;
if (-e "/etc/urpmi/urpmi.cfg") {
    $urpm = new urpm;
    $urpm->read_config;
    $urpm->update_media(nolock => 1, nopubkey => 1);
}