On Sat, 2014-10-25 at 21:25 -0400, Derrik Walker v2.0 wrote:
:
cd /etc
echo '#!/bin/bash' > rc.d/rc.local
ln -s rc.d/rc.local rc.local
chmod 755 rc.d/rc.local
As noted, previously you should use 'vi /etc/rc.d/rc.local' to add the
'#!/bin/bash' line and any testing lines (like 'touch /var/tmp/hello')
After re-booting, check that the file
/usr/lib/systemd/system/rc-local.service exists. It is *supposed* to be
created when/if /etc/rc,d/rc.local exists and is executable *but* it may
not. If it does not, then rc-local.service should contain:
*********************************
# rc-local.service
<snip>
# This unit gets pulled automatically into multi-user.target by
# systemd-rc-local-generator if /etc/rc.d/rc.local is executable.
[Unit]
Description=/etc/rc.d/rc.local Compatibility
ConditionFileIsExecutable=/etc/rc.d/rc.local
After=network.target
[Service]
Type=forking
ExecStart=/etc/rc.d/rc.local start
TimeoutSec=0
RemainAfterExit=yes
SysVStartPriority=99
**********************************
You don't actually need the 'start' on the 4th last line. With this file
in place and a systemctl enable rc-local.service' you should be good to go.
Note:
In my experience, this method is NOT stable. My guess is that, although
the priority of 99 is supposed to be last, systemd has started processes
which have not yet completed, when this is called, and things just fail.
In particular, modules may get loaded in the wrong order, so that the
hardware 'fails'. This sort of failure may not even be apparent in dmesg
etc.
I have had success and stable results using the following line in
*root's* crontab. (See Extensions in 'man 8 crontab')
@reboot /etc/rc.d/rc.local
And disabling/masking the rc-local.service file so it is still there but
not used.
This seems to depend entirely upon the hardware connected/installed in
the computer. My desktop machine is fine with rc-local.service, but the
mythtv box at home requires use of the crontab work-around to boot
reliably with everything properly loaded. Note that I have to remove and
re-install modules in rc.local to ensure the correct loading order. YMMV
R. Geoffrey Newbury
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