Crash on instaling xubuntu insuficient disk?

Traceback (most recent call last):
  File "/usr/bin/ubiquity", line 130, in ?
    install(sys.argv[1])
  File "/usr/bin/ubiquity", line 55, in install
    ret = wizard.run()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/gtkui.py", line 264, in run
    self.progress_loop()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/gtkui.py", line 538, in progress_loop
    raise RuntimeError, ("Install failed with exit code %s; see "
RuntimeError: Install failed with exit code 1; see /var/log/installer/syslog and /var/log/syslog
---------------------------------------------------
Other information:
The disk have only 1.1 GB