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- #!/bin/sh
- #
- # ulimit.hack: Create an intermediate program for use in
- # between kernel initialization and init startup.
- # This is needed on a 3b system if the standard CDLIMIT is
- # so small that the dumped Emacs file cannot be written.
- # This program causes everyone to get a bigger CDLIMIT value
- # so that the dumped Emacs can be written out.
- #
- # Users of V.3.1 and later should not use this; see etc/MACHINES
- # and reconfig your kernel's CDLIMIT parameter instead.
- #
- # Caveat: Heaven help you if you screw this up. This puts
- # a new program in as /etc/init, which then execs the real init.
- #
- cat > ulimit.init.c << \EOF
- main(argc, argv)
- int argc;
- char *argv[];
- {
- ulimit(2, 262144L); /* "2" is the "set" command. */
- /* 262,144 allows for 128Mb files to be written. */
- /* If that value isn't suitable, roll your own. */
- execv("/etc/real.init", argv);
- }
- EOF
- #
- # Compile it and put it in place of the usual init program.
- #
- cc ulimit.init.c -o ulimit.init
- mv /etc/init /etc/real.init
- mv ulimit.init /etc/ulimit.init
- ln /etc/ulimit.init /etc/init
- mv ulimit.init.c /etc/ulimit.init.c # to keep src for this hack nearby.
- chmod 0754 /etc/init
- exit 0
- #
- # Upon system reboot, all processes will inherit the new large ulimit.
-