SAVECORE(8)             COMMAND REFERENCE             SAVECORE(8)



NAME
     savecore - save a core dump of the operating system

SYNOPSIS
     /etc/savecore dirname [ -d dumpdev ] [ -s system ]

DESCRIPTION
     Savecore is meant to be called near the end of the /etc/rc
     file.  Its function is to save the core dump of the system
     (assuming one was made) and to write a reboot message in the
     shutdown log.

     Savecore checks the core dump to be certain it corresponds
     with the current running system.  If it does it saves the
     core image in the file dirname/vmcore.n and its brother, the
     namelist, in dirname/vmunix.n The trailing .n in the
     pathnames is replaced by a number which grows every time
     savecore is run in that directory.  This number is read from
     the second line of the file dirname/savecore.bounds, and is
     incremented whenever a core image is saved.

     Before savecore writes out a core image, it reads an
     additional number from the first line of the file
     dirname/savecore.bounds. If there are fewer free blocks on
     the filesystem which contains dirname than this number
     obtained from the savecore.bounds file, the core dump is not
     done.  If the savecore.bounds file does not exist, savecore
     always writes out the core file (assuming that a core dump
     was taken).

     Savecore also writes a reboot message in the shut down log.
     If the system crashed as a result of a panic, savecore
     records the panic string in the shut down log too.

OPTIONS
     -d dumpdev
               The name of the device containing the dump may be
               supplied as dumpdev. Otherwise, the dump device is
               read from the kernel.

     -s system If the core dump was from a system other than the
               default, the name of that system may be supplied
               as system.

FILES
     /usr/adm/shutdownlog
                       shut down log

     dirname/savecore.bounds

     /dev/cvt          table of kernel symbols




Printed 4/6/89                                                  1

SAVECORE(8)             COMMAND REFERENCE             SAVECORE(8)



RETURN VALUE
     [NO_ERRS]      Command completed without error.

     [USAGE]        Incorrect command line syntax. Execution
                    terminated.

     [NP_WARN]      An error warranting a warning message
                    occurred. Execution continues.

     [NP_ERR]       An error occurred that was not a system
                    error.  Execution terminated.

     [P_WARN]       A system error occurred. Execution continues.
                    See intro(2) for more information on system
                    errors.

     [P_ERR]        A system error occurred. Execution
                    terminated.  See intro(2) for more
                    information on system errors.

CAVEATS
     Savecore can be fooled into thinking a core dump is the
     wrong size.

SEE ALSO
     cvt(4).





























Printed 4/6/89                                                  2

%%index%%
na:336,103;
sy:439,356;
de:795,2244;
op:3039,511;
fi:3550,286;
rv:4244,836;
ca:5080,237;
se:5317,126;
%%index%%000000000135