Media
formats
from which
an
OS may
be
booted
using
the
Boot
RO
Mare:
• LIF (800016)
• SRM
•
SDF
HP
9000 Model 520;
070016
(Mid-Range
Format)
(Boot Area)
• UNIX (300016) (Boot Area) (Note
that
this
is different from HP-UX.)
The
Boot
ROM
can
boot
OSses from
the
following
boot
devices:
•
SRM
via
HP
98629 card,
/SYSTEMS
directory only
•
AMIGO
protocol
HP-IB
Discs (e.g. 8290XM, 9895, L-Codes
and
7906/20/25)
•
HP
98255
EPROM
Card
in "Disc" format.
•
HP
98259
Bubble
Memory
Card
•
CS/80
protocol
HP-IB
discs (e.g.
HP
7908)
•
SS
/80
protocol
HP-
IB discs (e.g.
HP
9122)
•
CS/80
Tape
NOTE
Some
of
these devices, namely
the
HP
7906/20/25,
may
not
meet
EMI
requirernents when used
with
Series 300 computers,
but
their
support
in
the
drivers comes inexpensively with
other
discs
that
are
supported.
For all devices
there
are
seven generic
error
messages
that
can
be
displayed:
Message
No
Device
No
Medium
Not
Ready
Read
Error
Bad
Hardware
Bad
State
Bus
Error
Meaning
Communication was lost
with
the
device.
There was no media (e.g. floppy disc) present.
The
device was
not
ready.
An error occurred while reading from
the
device.
A hardware fault occurred.
The
device
is
in an unknown
or
unexpected error
state.
A bus error occurred during a memory transfer
If
the
error
terminates
the
actual
load
of
an
OS, it will
appear
in
the
next
to
the
bottom
line
of
the
display followed by
the
device mass storage specifier (e.g. : HP7908.
803.
0).
If
the
error
occurs
during
scanning for OSses,
it
will
not
terminate
the
scan. In
this
case
the
error( s) will
be
listed on
the
left
hand
side
of
the
display.
Figure
4-7 is
an
example display
with
several errors.
148
Boot
ROM
Functions
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