Comment 3 for bug 628582

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Michael Casadevall (mcasadevall) wrote : Re: ubiquity crashed with OSError in _execute_child()

Tracing through the code, the problem is that ubi-partman is trying to determine the default device to partition to by calling get_grub_default which in turn calls grub_default, which tries to call some of the grub command line utilities; since these are not installed (or available) on an ARM based systme, ubiquity crashes, I suspect this bug also appears on powerpc since grub is also unavailable on that platform.