
ENV - Set Environment
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6-3
6
Configuring the PPCBug Parameters
The parameters that can be configured using ENV are:
Bug or System environment [B/S] = B?
Field Service Menu Enable [Y/N] = N?
Probe System for Supported I/O Controllers [Y/N] = Y?
Auto-Initialize of NVRAM Header Enable [Y/N] = Y?
B
Bug is the mode where no system type of support is
displayed. However, system-related items are still
available (Default).
S
System is the standard mode of operation, and is the
default mode if NVRAM should fail. System mode is
defined in the PPCBug Firmware Package User's
Manual.
Y
Display the field service menu.
N
Do not display the field service menu (Default).
Y
Accesses will be made to the appropriate system
buses (for example, VMEbus, local MPU bus) to
determine the presence of supported controllers
(Default).
N
Accesses will not be made to the VMEbus to
determine the presence of supported controllers.
Y
NVRAM (PReP partition) header space will be
initialized automatically during board initialization,
but only if the PReP partition fails a sanity check
(Default).
N
NVRAM header space will not be initialized
automatically during board initialization.