| Keybuk | oh, I see | 00:17 |
|---|---|---|
| Keybuk | it looks like we get the STOP of the child before the FORK of the parent | 00:18 |
| Keybuk | actually, that can't happen, we'd hit an assert | 00:20 |
| Keybuk | oh, no, we wouldn't | 00:20 |
| Keybuk | bah | 00:21 |
| ion | -DEFAULT_RUNLEVEL="$(sed -n -e "/^id:[0-9]*:initdefault:/{s/^id://;s/:.*//;p}" /etc/inittab || true)" | 00:50 |
| ion | +eval "$(sed -nre 's/^id:([0-9sS])[0-9sS]*:initdefault:.*/DEFAULT_RUNLEVEL="\1";/p' /etc/inittab || true)" | 00:50 |
| ion | Didn’t test that on a live system yet, though. | 00:51 |
| Keybuk | what's the difference? | 00:51 |
| ion | Originally, it would do DEFAULT_RUNLEVEL="" if inittab exists but id:... wasn’t set. Also, if there’s a broken inittab with multiple initdefault lines, or even multiple runlevels on a single line, DEFAULT_RUNLEVEL would get them all. | 00:52 |
| Keybuk | oh | 00:52 |
| Keybuk | well, sysvinit would have failed to boot then ;) | 00:52 |
| Keybuk | yours would fail if inittab had a " in it ;) | 00:53 |
| ion | Heh, true | 00:53 |
| ion | Oh, wait. It wouldn’t. | 00:53 |
| Keybuk | and fail at "eval" | 00:53 |
| Keybuk | rather than in the || true | 00:53 |
| Keybuk | oh | 00:54 |
| ion | The expression would print nothing if there was a line id:":initdefault: | 00:54 |
| Keybuk | ok true | 00:54 |
| ion | Oh, btw, set -e; eval "$(false)"; echo foo prints foo at least with dash, zsh and bash. Didn’t bother to read what POSIX says. The getopt(1) documentation explicitly tells you to do temp="$(getopt ...)"; eval "$temp" so that getopt interacts with set -e as expected. | 01:07 |
| ion | eval set -- "$temp" even | 01:08 |
| rjbell4 | Sorry to join and pounce, but I just had a question I was wondering about: is there any support in upstart for monitoring multiple child processes? I've found "expect fork" and "expect daemon", which seem to monitor a single child or grandchild, but what if there are several child processes, and if any of them fail then I want to take action? | 19:05 |
| ion | What’s wrong with joining and pouncing? | 19:32 |
| ion | 0.10 should have better support for following child processes, but that’s about as much as i know, Keybuk should be able to elaborate. | 19:32 |
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