odoo/addons/portal/portal_data.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data noupdate="1">

        <record id="portal" model="res.portal">
            <field name="name">Portal</field>
            <field name="group_id" ref="group_portal_member"/>
            <field name="override_menu" eval="False"/>
            <!-- Insert the template user from auth_signup in the portal members group -->
            <field name="users" eval="[(4,ref('auth_signup.default_template_user'))]"/>
        </record>

        <!-- Mail group for the company's news -->
        <record id="company_news_feed" model="mail.group">
            <field name="name">Company's news</field>
            <field name="public" eval="public"/>
        </record>

        <record id="action_news" model="ir.actions.act_window">
            <field name="name">News</field>
            <field name="res_model">mail.group</field>
            <field name="res_id" ref="company_news_feed"/>
            <field name="view_mode">form</field>
        </record>

        <!-- Mail group for the company's jobs -->
        <record id="company_jobs" model="mail.group">
            <field name="name">Company's jobs</field>
            <field name="public" eval="public"/>
        </record>

        <record id="action_jobs" model="ir.actions.act_window">
            <field name="name">Jobs</field>
            <field name="res_model">mail.group</field>
            <field name="res_id" ref="company_jobs"/>
            <field name="view_mode">form</field>
        </record>

    </data>
</openerp>