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      SAVECORE(8)             GENIX Programmer's Manual             SAVECORE(8)



      NAME
           savecore - save a core dump of the operating system

      SYNOPSIS
           savecore dirname

      DESCRIPTION
           Savecore is meant to be called at 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  unix.   If  it does it saves the core image in the
           file   dirname/vmcore.n   and   it's    brother,    the    namelist,
           dirname/vmunix.n The trailing ".n" in the pathnames is replaced by a
           number which grows every time savecore is run in that directory.

           Before savecore writes out a core image, it reads a number from  the
           file  dirname/minfree.   If  there  are  fewer  free  blocks  on the
           filesystem which contains dirname than the number obtained from  the
           minfree  file,  the core dump is not done.  If the minfree 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.

      FILES
           /usr/adm/shutdownlog     Shut down log
           /vmunix             Current UNIX

      BUGS



















      Printed 11/16/83                                                        1






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