rc.local should support a runparts of rc.local.d

just for reference, sed is easly:
  sed -i '$s/^exit 0$//'

better (thanks to rbasak), to just edit out that 'exit 0':
  sed -i '${/^exit 0$/d}' /etc/rc.local

Upon further thought, i think the easiest path here is to simply add a /etc/init.d/rc.local_d script that (or potentially as an upstart job) that runs stuff in /etc/init.d/rc.local.d

that way we dont have to deal with the potential of user having modified /etc/rc.local .

just for reference, but I think i'm not going to use it, here is an upstart job for rc.local.d scripts:

# rc-local-d - run scripts in /etc/rc.local.d in run-parts fashion
# after /etc/rc.local has finished
#
# This extends traditional rc.local to support run-parts

description "run scripts in /etc/rc.local.d at traditional rc.local timeframe"
author "Scott Moser <email address hidden>"

start on stopped rc RUNLEVEL=[2345]
stop on runlevel [016]

console output
task
script
   command -v run-parts >/dev/null || exit 0
   [ -d /etc/rc.local.d ] || exit 0
   exec run-parts /etc/rc.local.d
end script

Hi Scott,

is there any reason not to first try going through Debian for this?

There has been some discussion on this bug in ubuntu-devel, and I realize that reading some of the comments above may be confusing, so I will summarize here.

 * The suggested merge proposal currently adds functional 'rc.local.d' behavior that would break anything. It does that with a new sysvinit script (rc.local.d). Clint suggested that it could/should be an upstart job, but I do not personally see that as an issue, nor do I think that by itself was blocking (The job could be changed to upstart later).
 * In the conversation on ubuntu-devel [1], Steve Langasek was not overjoyed by the idea of this change. His primary concern seemed to be that it was not sysvinit's job to provide this functionality.

Going forward, to address Steve's concerns, it might be best to simply add an rc.local.d package. I'm not actively pushing on this for 12.04, but may revisit in 12.10.

--
[1] http://irclogs.ubuntu.com/2012/02/07/%23ubuntu-devel.html#t20:12

/etc/rc.local script could simply include:

if [ -d '/etc/rc.local.d' ]; then
    for F in /etc/rc.local.d/*; do
        if [ -f "$F" ] && [ -x "$F" ]; then
            "$F"
        fi
    done
fi

But it will be hard to add this now, as user might have modified /etc/rc.local already.

However a simple systemd service could implement support for /etc/rc.local.d directory.

Systemd has a rc-local.service, but no rc-local@.service for files in /etc/rc.local.d. Please forward this feature request to upstream systemd.

I don't think this is relevant anymore.