All under the sun ( :-)

1) Installing old version of Zeroshell.
    http://alaksha.blogspot.in/2012/09/how-to-install-zeroshell-to-hard-disk.html
    [gunzip -c zeroshell.img.gz > /dev/sda]
2) Remounting
     mount -o remount,rw /dev/hdb2 /cdrom
     Weird things happen to the /sbin mount point after Asterisk installation [have  to check]
3) Asterisk GUI
     http://downloads.asterisk.org/pub/telephony/asterisk-gui/releases/