[gentoo-user] local.start and sending an email

[gentoo-user] local.start and sending an email

[John J. Foster]

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Good afternoon,

I have the following 2 entries in /etc/conf.d/local.start

# Record system restart
echo "System restart on   `date +%F`   at   `date +%R`" >> /var/log/reboot.log

# Send email notification that the system just restarted
date|mutt -s 'System restarted' myemail@myprovider

The first one properly records the fact that the system has been
restarted, but I do not receive an email. Watching the console as the
system comes up, I see a Segmentation Fault when the second command
executes. Running that command from a shell prompt works fine. I am
under the impression, possibly incorrectly, that local.start is run 
after all other init scripts.

depend() {
        after *
}

Do I perhaps need to pause a bit in order to let something else finish?
I am using ssmtp for mail.

Thanks,
John

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Re: [gentoo-user] local.start and sending an email

[Billy Holmes]

John J. Foster wrote:
> date|mutt -s 'System restarted' myemail@myprovider

try putting in the full path to the commands?

the environment that local.start is in is not the same as your shell.
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Re: [gentoo-user] local.start and sending an email

[Peper]

> try putting in the full path to the commands?
>
> the environment that local.start is in is not the same as your shell.
Don't think so. It won't be a segfault then...

My only idea is to add "echo local.start" to the script and check when it is 
executed.

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Re: [gentoo-user] local.start and sending an email

[John J. Foster]

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On Thu, Nov 03, 2005 at 04:19:39PM -0500, Billy Holmes wrote:
> John J. Foster wrote:
> >date|mutt -s 'System restarted' myemail@myprovider
> 
> try putting in the full path to the commands?
> 
I tried changing this to 

/usr/bin/date | /usr/bin/mutt -s 'System restarted' myemail@myprovider

and get the same segmentation fault.

Don't know if it matters, or not, but I'm running kernel 2.6.13-gentoo-r5, 
fully patched

Thanks,
John
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Re: [gentoo-user] local.start and sending an email

[Neil Bothwick]

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On Thu, 3 Nov 2005 20:48:43 -0500, John J. Foster wrote:

> I tried changing this to 
> 
> /usr/bin/date | /usr/bin/mutt -s 'System restarted' myemail@myprovider
> 
> and get the same segmentation fault.

Isn't mutt overkill for this? Do you really need a full MUA on a server.
I use mail for this sort of thing, emerge mailx.

Having said that, it would be useful to find out why mutt is segfaulting.
You can eliminate and environment differences by sourcing /etc/profile
before running it. I find this often helps with cron scripts.


-- 
Neil Bothwick

Minds are like parachutes; they only function when fully open. * Sir
James Dewar

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Re: [gentoo-user] local.start and sending an email

[John J. Foster]

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On Fri, Nov 04, 2005 at 08:14:59AM +0000, Neil Bothwick wrote:
> On Thu, 3 Nov 2005 20:48:43 -0500, John J. Foster wrote:
> 
> > I tried changing this to 
> > 
> > /usr/bin/date | /usr/bin/mutt -s 'System restarted' myemail@myprovider
> > 
> > and get the same segmentation fault.
> 
> Isn't mutt overkill for this? Do you really need a full MUA on a server.
> I use mail for this sort of thing, emerge mailx.
> 
I agree that this would most certainly be overkill for a server. But
this is my home machine, and I'd just like to receive notification at
work if it reboots for some odd reason.

> Having said that, it would be useful to find out why mutt is segfaulting.
> You can eliminate and environment differences by sourcing /etc/profile
> before running it. I find this often helps with cron scripts.
> 
I did note something I consider quite odd, though. While rebooting,
local.start runs right _before_ inittab starts to bring the system to
runlevel 3. 

A couple thing here.

rc-status shows /etc/init.d/local as part of the _default_ runlevel.

/etc/init.d/local stop  -  warns about shutting a boot service. This
warning only happens the first time it is stopped after a reboot.
Subsequent stops and starts produce no warnings.

It looks to me like _local_ is for some reason being started earlier
than it should, or my understanding of the boot process is limited.

Thanks,
John

> 
> -- 
> Neil Bothwick
> 
> Minds are like parachutes; they only function when fully open. * Sir
> James Dewar

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Re: [gentoo-user] local.start and sending an email

[Peper]

> I did note something I consider quite odd, though. While rebooting,
> local.start runs right _before_ inittab starts to bring the system to
> runlevel 3.
>
> A couple thing here.
>
> rc-status shows /etc/init.d/local as part of the _default_ runlevel.
>
> /etc/init.d/local stop  -  warns about shutting a boot service. This
> warning only happens the first time it is stopped after a reboot.
> Subsequent stops and starts produce no warnings.
>
> It looks to me like _local_ is for some reason being started earlier
> than it should, or my understanding of the boot process is limited.
Strange for me. Maybe your local is added to both runlevels? Check rc-status 
boot. If it's not i would try rc-update add local boot and then rc-update del 
boot.

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Re: [gentoo-user] local.start and sending an email

[Peper]

> rc-update del boot.
Of course i meant rc-update del local boot.

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Peper
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Re: [gentoo-user] local.start and sending an email

[Neil Bothwick]

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On Fri, 4 Nov 2005 08:16:07 -0500, John J. Foster wrote:

> I did note something I consider quite odd, though. While rebooting,
> local.start runs right _before_ inittab starts to bring the system to
> runlevel 3. 

That's odd, it definitely runs last here, as it appears is should.

Have you trued using mail instead of mutt? It should give a clue as to
where the problem lies.


-- 
Neil Bothwick

Life is like an analogy.

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Re: [gentoo-user] local.start and sending an email

[John J. Foster]

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On Fri, Nov 04, 2005 at 01:47:55PM +0000, Neil Bothwick wrote:
> On Fri, 4 Nov 2005 08:16:07 -0500, John J. Foster wrote:
> 
> > I did note something I consider quite odd, though. While rebooting,
> > local.start runs right _before_ inittab starts to bring the system to
> > runlevel 3. 
> 
> That's odd, it definitely runs last here, as it appears is should.

Agreed.

> 
> Have you trued using mail instead of mutt? It should give a clue as to
> where the problem lies.

May I ask why trying mail, which I will this weekend, would at all
explain why local is starting in the wrong runlevel? 

Thanks,
John

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Re: [gentoo-user] local.start and sending an email

[Neil Bothwick]

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On Fri, 4 Nov 2005 09:05:09 -0500, John J. Foster wrote:

> > Have you trued using mail instead of mutt? It should give a clue as to
> > where the problem lies.
> 
> May I ask why trying mail, which I will this weekend, would at all
> explain why local is starting in the wrong runlevel? 

It wouldn't, but it may help to determine whether the problem is specific
to mutt or wider ranging.


-- 
Neil Bothwick

If nothing sticks to Teflon, how do they stick teflon on the pan?

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Re: [gentoo-user] local.start and sending an email

[John J. Foster]

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On Fri, Nov 04, 2005 at 08:16:07AM -0500, John J. Foster wrote:
> > 
> I did note something I consider quite odd, though. While rebooting,
> local.start runs right _before_ inittab starts to bring the system to
> runlevel 3. 
> 
> A couple thing here.
> 
> rc-status shows /etc/init.d/local as part of the _default_ runlevel.
> 
> /etc/init.d/local stop  -  warns about shutting a boot service. This
> warning only happens the first time it is stopped after a reboot.
> Subsequent stops and starts produce no warnings.
> 
> It looks to me like _local_ is for some reason being started earlier
> than it should, or my understanding of the boot process is limited.
> 
OK, I may have found the answer here, which I'll verify tonight when I
get home and can watch a reboot.

/etc/init.d/local needsme

showed that /etc/init.d/splash was dependent on local. splash was in the
boot runlevel, although I haven't used splash for a few months now, and
obviously forgot to remove it. I am pretty sure this will solve my
problem.

I'll let you know.
John

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Re: [gentoo-user] local.start and sending an email

[John J. Foster]

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On Fri, Nov 04, 2005 at 10:14:28AM -0500, John J. Foster wrote:
> On Fri, Nov 04, 2005 at 08:16:07AM -0500, John J. Foster wrote:
> > > 
> > I did note something I consider quite odd, though. While rebooting,
> > local.start runs right _before_ inittab starts to bring the system to
> > runlevel 3. 
> > 
> > A couple thing here.
> > 
> > rc-status shows /etc/init.d/local as part of the _default_ runlevel.
> > 
> > /etc/init.d/local stop  -  warns about shutting a boot service. This
> > warning only happens the first time it is stopped after a reboot.
> > Subsequent stops and starts produce no warnings.
> > 
> > It looks to me like _local_ is for some reason being started earlier
> > than it should, or my understanding of the boot process is limited.
> > 
> OK, I may have found the answer here, which I'll verify tonight when I
> get home and can watch a reboot.
> 
> /etc/init.d/local needsme
> 
> showed that /etc/init.d/splash was dependent on local. splash was in the
> boot runlevel, although I haven't used splash for a few months now, and
> obviously forgot to remove it. I am pretty sure this will solve my
> problem.
> 
Well damn. Removing /etc/init.d/splash from the boot runlevel did in fact
cause /etc/init.d/local to run as the last initscript, just like it's
supposed to. But it didn't solve the problem of mutt segfaulting when
called here.

I took Neil's advice and emerged mailx. All is well again in gentooland.

(I'd sure like to know why mutt didn't work in local.start, though)

Thanks for all the help,
John
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Re: [gentoo-user] local.start and sending an email

[Neil Bothwick]

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On Fri, 4 Nov 2005 19:16:16 -0500, John J. Foster wrote:

> Well damn. Removing /etc/init.d/splash from the boot runlevel did in
> fact cause /etc/init.d/local to run as the last initscript, just like
> it's supposed to. But it didn't solve the problem of mutt segfaulting
> when called here.
> 
> I took Neil's advice and emerged mailx. All is well again in gentooland.
> 
> (I'd sure like to know why mutt didn't work in local.start, though)

If the same command works in a terminal, it could be a difference in the
environment. The first thing I would try is running "source /etc/profile"
right before the mutt call.


-- 
Neil Bothwick

What was the greatest thing BEFORE sliced bread?

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Re: [gentoo-user] local.start and sending an email

[John J. Foster]

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On Sat, Nov 05, 2005 at 10:52:20PM +0000, Neil Bothwick wrote:
> 
> If the same command works in a terminal, it could be a difference in the
> environment. The first thing I would try is running "source /etc/profile"
> right before the mutt call.

No go. Just for review, here's a few lines from local.start.

source /etc/profile
/usr/bin/date | /usr/bin/mutt -s "System restarted" addy@isp

Now, the error message

Error sending message, child exited 1 ().
/etc/conf.d/local.start: line 15: 19174 Done
/usr/bin/date
     19175 Segmentation fault      | /usr/bin/mutt -s "System restarted" addy@isp

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[gentoo-user] Re: local.start and sending an email

[Francesco Talamona]

On Sunday 06 November 2005 01:26, John J. Foster wrote:
> On Sat, Nov 05, 2005 at 10:52:20PM +0000, Neil Bothwick wrote:
> > If the same command works in a terminal, it could be a difference
> > in the environment. The first thing I would try is running "source
> > /etc/profile" right before the mutt call.
>
> No go. Just for review, here's a few lines from local.start.
>
> source /etc/profile
> /usr/bin/date | /usr/bin/mutt -s "System restarted" addy@isp
>
> Now, the error message
>
> Error sending message, child exited 1 ().
> /etc/conf.d/local.start: line 15: 19174 Done
> /usr/bin/date
>      19175 Segmentation fault      | /usr/bin/mutt -s "System
> restarted" addy@isp

I reread the whole thread, till now we focused on mail program, but 
segfault came just after "date" command, maybe we just looked in the 
wrong direction...

Do you have all partitions mounted at the time local runs, 
are /usr /var /lib ... all mounted and accessible by then? Can it be a 
permission problem? So who is the user running the script?...

Ciao
	Francesco
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2005
One 2.2GHz AMD Athlon 64 Processor, 2GB RAM, 4325.37 Bogomips Total
aemaeth
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Re: [gentoo-user] Re: local.start and sending an email

[John J. Foster]

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On Sun, Nov 06, 2005 at 08:16:44AM +0100, Francesco Talamona wrote:
> > source /etc/profile
> > /usr/bin/date | /usr/bin/mutt -s "System restarted" addy@isp
> >
> > Now, the error message
> >
> > Error sending message, child exited 1 ().
> > /etc/conf.d/local.start: line 15: 19174 Done
> > /usr/bin/date
> >      19175 Segmentation fault      | /usr/bin/mutt -s "System
> > restarted" addy@isp
> 
> I reread the whole thread, till now we focused on mail program, but 
> segfault came just after "date" command, maybe we just looked in the 
> wrong direction...

Yeah, I thought that at first. Except for the "error sending message"
line and that changing to mailx works properly.
> 
> Do you have all partitions mounted at the time local runs, 
> are /usr /var /lib ... all mounted and accessible by then?

Yep - only have a /, /boot and a swap

> permission problem? So who is the user running the script?...

root during boot

Thanks,
John
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