Traceback (most recent call last):
  File "/usr/lib/ubiquity/bin/ubiquity", line 457, in <module>
    main(oem_config)
  File "/usr/lib/ubiquity/bin/ubiquity", line 444, in main
    install(query=options.query)
  File "/usr/lib/ubiquity/bin/ubiquity", line 245, in install
    ret = wizard.run()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 465, in run
    self.progress_loop()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 975, in progress_loop
    (ret, realtb))
RuntimeError: Install failed with exit code 1
Traceback (most recent call last):
  File "/usr/share/ubiquity/install.py", line 2444, in <module>
    install.run()
  File "/usr/share/ubiquity/install.py", line 459, in run
    self.configure_bootloader()
  File "/usr/share/ubiquity/install.py", line 1801, in configure_bootloader
    "GrubInstaller failed with code %d" % ret)
InstallStepError: GrubInstaller failed with code 1