detecting crash dumps on boot?

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2 total messages Started by Christopher Kranz Tue, 12 Jan 1993 15:57

#144

Author: Christopher Kranz
Date: Tue, 12 Jan 1993 15:57

27 lines
1716 bytes

Is it possible to determine if a crash dump exists before /etc/savecore
runs?

What I'd like to do is determine if a crash dump exists on the swap device
before /etc/savecore runs and then make room for the vmcore file that
/etc/savecore creates by deleteing other files in the same file system.

I've got a rather large scratch space where users keep large temporary
files.  I don't want to delete them if I don't have to, just when I need to
make room for a crash dump.

Any useful suggestions (or even guesses) would be appreciated.  Thanks.


	Christopher Kranz
	clk@princeton.edu
--
Christopher Kranz                  |  internet:  clk@Princeton.EDU
Systems Programmer, UNIX Systems   |    BITNET:  clk@PUCC
Princeton University               |      UUCP:  princeton!clk
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-- 
Christopher Kranz                  |  internet:  clk@Princeton.EDU
Systems Programmer, UNIX Systems   |    BITNET:  clk@PUCC
Princeton University               |      UUCP:  princeton!clk
87 Prospect Avenue, Room 200       |     Voice:  609-258-6033/6000

Re: detecting crash dumps on boot?

#146

Author: Robert Keller
Date: Tue, 12 Jan 1993 18:40

10 lines
1007 bytes

clk@ernie.Princeton.EDU (Christopher Kranz) writes:
>What I'd like to do is determine if a crash dump exists on the swap device
>before /etc/savecore runs and then make room for the vmcore file that
>/etc/savecore creates by deleteing other files in the same file system.

Take a look at the savecore(1M) man page, especially the description section.
You'll likely want to put a hook in /etc/rc2.d/S48savecore, or if you 
have another filesystem with enough space, simply use /etc/config/savecore.options.

...robert

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