Recovering
the
system
firmware
code
The
system
firmware
is
contained
in
two
separate
images
in
the
flash
memory
of
the
blade
server:
temporary
and
permanent.
These
images
are
referred
to
as
TEMP
and
PERM,
respectively.
The
system
normally
starts
from
the
TEMP
image,
and
the
PERM
image
serves
as
a
backup.
If
the
TEMP
image
becomes
damaged,
such
as
from
a
power
failure
during
a
flash
update,
you
can
recover
the
TEMP
image
from
the
PERM
image.
If
the
TEMP
image
becomes
damaged,
you
can
see
one
of
two
symptoms:
v
The
system
automatically
starts
from
the
PERM
image.
This
is
indicated
by
the
error
code
20D00902.
v
The
system
hangs
or
is
non-responsive
after
the
system
is
started
with
no
checkpoints.
If
your
system
hangs,
you
can
force
the
system
to
start
from
the
PERM
image
by
using
the
code
page
jumper
(J14).
v
Setting
jumper
J14
to
pins
2
and
3
will
force
the
blade
server
to
start
(boot)
from
the
PERM
image.
v
Setting
jumper
J14
to
pins
1
and
2
will
enable
the
blade
server
to
start
(boot)
from
either
the
TEMP
or
PERM
image.
Recovery
of
system
firmware
code
using
service
aids
Linux
on
pSeries
®
service
aids
for
hardware
diagnostics
are
available
for
customers
who
have
installed
and
are
running
the
Linux
operating
system.
Users
can
install
these
free
diagnostics
tools
for
effective
diagnosis
and
repair
of
the
system
in
the
rare
instance
when
a
system
error
occurs.
This
service
aid
toolkit
provides
the
key
tools
required
to
take
advantage
of
the
inherent
pSeries
hardware
RAS
functions
as
outlined
in
the
Linux
on
pSeries
RAS
White
paper
available
from
http://techsupport.services.ibm.com/server/
Linux_on_pSeries/images/Linux_RAS.pdf.
These
functions
include
first
failure
data
capture
and
error
log
analysis.
With
the
toolkit
installed,
problem
determination
and
correction
is
greatly
enhanced
and
the
likelihood
of
an
extended
system
outage
is
reduced.
The
Linux
service
aids
for
hardware
diagnostics
are
separate
from
the
operating
system
installation
and
are
available
for
download
from
the
following
Web
site:
http://techsupport.services.ibm.com/server/lopdiags/.
Note:
The
Update_Flash
command
can
only
be
performed
if
the
Linux
service
tools
have
been
installed
on
the
blade
server.
Starting
the
TEMP
image
To
force
the
system
to
start
the
TEMP
image,
complete
the
following
steps:
Note:
Do
not
perform
these
steps
if
the
system
error
code
20D00902
has
already
occurred
on
your
system.
1.
Turn
off
the
blade
server.
2.
Remove
the
blade
server
(see
“Removing
the
blade
server
from
the
BladeCenter
unit”
on
page
21).
3.
Open
the
blade-server
cover
(see
“Opening
the
blade
server
cover”
on
page
22
for
instructions).
84
BladeCenter
JS20
Type
8842:
Installation
and
User’s
Guide
Summary of Contents for BladeCenter JS20
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