Saving the system dump memory image
If the system has panicked because of an unrecoverable failure,
an image of system memory at the time of the panic may have been
saved to a hard disk.
By default, the partition used by the system
to store the system memory image is also shared by the
Therefore, if you plan to examine the system memory image with crash,
it must be saved before the system comes up.
However, saving the system memory image is not required,
and no system software will be damaged if you continue on to
If a system dump is directed to a dump device other than
the default swap device, the dump will not be detected when
the system boots up.
To enable the system to detect a dump that is not in the swap area when
the system boots, add the following entry into the file
/dev/dump 0 -
When you try to reboot the system and there appears to be a
system memory image saved, the following message
is displayed automatically if the dump device
is also a swap device:
There is a system dump memory image in a swap device.
Do you want to save it? (y/n)>
The timeout value for the dump image
prompt can be set using the defadm
command as follows:
defadm dump TIME=secs
Answer y to save the system dump memory image.
When you are given a selection list of
what media to use for the
dump, enter the appropriate value for the media
you intend to use, or enter f to save the dump to
/dumpfile. If /dumpfile already exists,
you are asked to enter another name.
If you chose a separate dump device during installation,
or later changed a dump slice
(type V_DUMP; see
on the root disk,
the dump will just stay on that slice and
you will not have to go through this procedure.
Saving a system dump while in multi-user state
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 22 April 2004