SAVECORE(8)SAVECORE(8)NAMEsavecore - save a core dump of the operating system
SYNOPSISsavecore dirname [ 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 unix. If it does it saves the core image in the file
dirname/vmcore.n and its 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 the number of free kilobytes on the filesys‐
tem which contains dirname is less than the number obtained from the
minfree file, the core dump is not saved. If the minfree file does not
exist, savecore always writes out the core file (assuming that a core
dump was taken).
Savecore also logs a reboot message using facility LOG_AUTH (see sys‐
log(3)) If the system crashed as a result of a panic, savecore logs the
panic string too.
If the core dump was from a system other than /vmunix, the name of that
system must be supplied as sysname.
FILES
/vmunix current UNIX
BUGS
Can be fooled into thinking a core dump is the wrong size.
4th Berkeley Distribution June 24, 1990 SAVECORE(8)
