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SAVECORE (8) | System administration commands and daemons | Unix Manual Pages | :man▋
The options are as follows:
The savecore utility looks for dumps on each device specified by the device argument(s), or on each device in /etc/fstab marked as "dump" or "swap". The savecore utility checks the core dump in various ways to make sure that it is complete. If it passes these checks, it saves the core image in directory /vmcore.# and information about the core in directory /info.# The ‘‘#’’ is the number from the first line of the file directory /bounds, and it is incremented and stored back into the file each time savecore successfully runs. The savecore utility also checks the available disk space before attempting to make the copies. If there is insufficient disk space in the file system containing directory, or if the file directory /minfree exists and the number of free kilobytes (for non-superusers) in the file system after the copies were made would be less than the number in the first line of this file, the copies are not attempted. If savecore successfully copies the kernel and the core dump, the core dump is cleared so that future invocations of savecore will ignore it. The savecore utility is meant to be called near the end of the initialization file /etc/rc (see rc(8)).
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