On Tue, 16 Mar 2021 20:07:45 +0100
Pierre Labastie <pierre.labas...@neuf.fr> wrote:
[ putlin ]
>
> Well, I guess I've never tried /etc/init.d/network restart, since
> usually, after boot, I only want to stop/start individual
> interfaces (I use "ifdown <iface>" then "ifup <iface>").
>
If I change the ifconfig.<iface> script like in static to
dynamic (dhcpd) then I would /etc/init.d/network restart.
If I change wpa_supplicant-wlan0.conf then I
would /etc/init.d/network restart
As in testing to see if the network comes up on a headless server
before rebooting, unplugging the keyboard and monitor.
It tends to make me cuss if the server is running headless and I
then can not remotely login after a network change!
> If I want to disable an interface, I do:
> mv /etc/sysconfig/{,nouse}ifconfig.<iface>
>
If I have.................
ls /etc/sysconfig/ifconfig.*
ifconfig.eth0
ifconfig.eth0:1
ifconfig.eth0:2
ifconfig.wlan0
ifconfig.wlan0.dhclient
ifconfig.wlan0.dhcpcd
Would be mighty convenient to turn them on or off by
setting ONBOOT to ONBOOT="disabled" for the ones I don't need at the
moment like this
#ONBOOT="yes"
#ONBOOT="no"
ONBOOT="disabled"
> Certainly, lfs bootscripts are crude sometimes, and could be
> refined. But then, they might not please everybody. I'd say they
> are some kind of tradeoff between individual taste and everybody's
> expectations...
They should be properly documented and work!
>
> >
> > Adding/changing in /sbin/ifup:
> >
> > # Do not process this service if ONBOOT is set to disabled
> > if [ "${ONBOOT}" == "disabled" ]; then exit 0; fi
>
> See above for disabling.
I'll change the script......
>
> >
> > # Do not process this service if started by boot, and ONBOOT
> > # is not set to yes
> > if [ "${IN_BOOT}" = "1" -a "${ONBOOT}" != "yes" ]; then
> > exit 0
> > fi
> >
> > fixes this.....
> >
> > My guess is that more evils exist in the bootscripts and to come
> > out at night?
>
> Well, the less sophisticated, the less possibility of evil, but
> some rough corners...
>
> >
> > PS.
> >
> > Shouldn't all the scripts have either
> >
> > #! /bin/sh
> > or
> > #! /bin/bash
> >
> > Just for consistency? and not be mixed?
>
> Well, I'm not very good at spotting "bashisms", but maybe those who
> have /bin/bash are supposed to really need bash?
Set them all to #!/bin/bash, problem solved. There are init scripts
that have #!/bin/bash and would be right at home using #!/bin/sh.
BTW bash is available at boot time, why not use it?
>
> >
> > And no undefined variables?
>
> See above for PREVLEVEL
>
>
There are other undefined variables if one chooses to
/etc/init.d/network restart
or
service network restart
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