pbuilder-dist tries to access 'ubuntu.com' instead of 'es.trisquel.info' for belenos and toutatis

Hi,

I wanted to have a minimal installation of Belenos or Toutatis on Trisquel 7 for creating .deb packages but my attempt was not successful because of the following errors. pbuilder-dist tries to access ubuntu.com instead of es.trisquel.info


salman@trisquel-os:~$ pbuilder-dist belenos create
pbuilder-dist: Warning: Distribution data outdated. Please check for an update for distro-info-data. See /usr/share/doc/distro-info-data/README.Debian for details.
W: /home/salman/.pbuilderrc does not exist
I: Logging to /home/salman/pbuilder/belenos_result/last_operation.log
I: Distribution is belenos.
I: Current time: Tue Oct 28 15:51:32 IRST 2014
I: pbuilder-time-stamp: 1414498892
I: Building the build environment
I: running debootstrap
/usr/sbin/debootstrap
I: Retrieving Release
E: Failed getting release file http://archive.ubuntu.com/ubuntu/dists/belenos/Release
E: debootstrap failed
W: Aborting with an error
I: cleaning the build env
I: removing directory /var/cache/pbuilder/build//18857 and its subdirectories

or

salman@trisquel-os:~$ pbuilder-dist toutatis create
pbuilder-dist: Warning: Distribution data outdated. Please check for an update for distro-info-data. See /usr/share/doc/distro-info-data/README.Debian for details.
W: /home/salman/.pbuilderrc does not exist
I: Logging to /home/salman/pbuilder/toutatis_result/last_operation.log
I: Distribution is toutatis.
I: Current time: Tue Oct 28 15:52:38 IRST 2014
I: pbuilder-time-stamp: 1414498958
I: Building the build environment
I: running debootstrap
/usr/sbin/debootstrap
I: Retrieving Release
E: Failed getting release file http://archive.ubuntu.com/ubuntu/dists/toutatis/Release
E: debootstrap failed
W: Aborting with an error
I: cleaning the build env
I: removing directory /var/cache/pbuilder/build//18949 and its subdirectories


and this is the pbuilderrc:

salman@trisquel-os:~$ cat /etc/pbuilderrc
# this is your configuration file for pbuilder.
# the file in /usr/share/pbuilder/pbuilderrc is the default template.
# /etc/pbuilderrc is the one meant for overwriting defaults in
# the default template
#
# read pbuilderrc.5 document for notes on specific options.
MIRRORSITE=http://es.archive.trisquel.info/trisquel/