install/42361: sysinst segfaults when trying to edit MBR on MobilePro 880 (hpcmips)

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>Number:         42361
>Category:       install
>Synopsis:       sysinst segfaults when trying to edit MBR on MobilePro 880 
>(hpcmips)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 22 02:00:00 +0000 2009
>Originator:     Ed
>Release:        5.99.22
>Organization:
None
>Environment:
N/A
>Description:
When attempting to edit the MBR within sysinst in the install process on a 
MobilePro 880, the initial information will be printed from the MBR editor, 
followed by a segfault and coredump. This causes NetBSD to be completely 
uninstallable (via sysinst, anyway).
>How-To-Repeat:
Obvious.
>Fix:
Not obvious.