Crash on Install (grubinstall)

[brent1a]

Binary package hint: ubiquity

Traceback (most recent call last):
  File "/usr/lib/ubiquity/bin/ubiquity", line 229, in <module>
    main()
  File "/usr/lib/ubiquity/bin/ubiquity", line 224, in main
    install(args[0])
  File "/usr/lib/ubiquity/bin/ubiquity", line 68, in install
    ret = wizard.run()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 428, in run
    self.progress_loop()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 797, in progress_loop
    (ret, realtb))
RuntimeError: Install failed with exit code 1
Traceback (most recent call last):
  File "/usr/share/ubiquity/install.py", line 1911, in <module>
    install.run()
  File "/usr/share/ubiquity/install.py", line 419, in run
    self.configure_bootloader()
  File "/usr/share/ubiquity/install.py", line 1422, in configure_bootloader
    "GrubInstaller failed with code %d" % ret)
InstallStepError: GrubInstaller failed with code 1