hi to the community
I'm not sure here is the good place for my question because it's not
related to the ppc architecture, but i try.
Here is my problem I don't understand:
I have an embended linux 2.4.20 on a 8260 ppc with a cramfs root
file-system I use since 1 year.
Everything works fine.
During the init process, the content of the /etc directory is copy in a
tmpfs file system and then then a tmpfs file-system is mounted on /etc
and fill with the old content.
(thanks to that, I can replace after some files in the /etc by other
specific files store in a little jffs part of the flash with the
customer specific configurations /etc configuration files).
Recently, I've decided to add cron to this platform and something very
strange appear.
My /etc/crontab file is very simple:
-----------------------------------------------
SHELL=/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=""
HOME=/
#test of cron
* * * * * root echo date >>/tmp/essai
-----------------------------------------------
everything works fine when I boot on a nfs file-system.
But nothing is done (/tmp/essai not created) if I boot on the cramfs
file-system.
And what is the only difference beetwen the two startup:........ the
timestamp of the /etc/crontab (1/1/1970 for crontab coming from the cramfs)
So I try something after having boot on cramfs:
echo "#toto">>/etc/crontab
And ones I have done this, the cron process start to work correctly,
creating and editing the /tmp/essai.
I know that cron verify if the /etc/crontab has changed every mn, so I
think this is the reason it works after, but why does it not see the
first crontab file ?
It's juste like the 1/1/1970 timestamp of /etc/crontab make him
invisible by cron.
Does anyone having an idea or having already encounter this kind of
problem ?
I have find nothing on the web about this or a similar problem.
Thanks for any help
Hi
Just a little precision: the /etc "copy/mount" is done before having
start the cron process.
Thanks again if you have an idea.
hubert.loewenguth a écrit :
hi to the community
I'm not sure here is the good place for my question because it's not
related to the ppc architecture, but i try.
Here is my problem I don't understand:
I have an embended linux 2.4.20 on a 8260 ppc with a cramfs root
file-system I use since 1 year.
Everything works fine.
During the init process, the content of the /etc directory is copy in
a tmpfs file system and then then a tmpfs file-system is mounted on
/etc and fill with the old content.
(thanks to that, I can replace after some files in the /etc by other
specific files store in a little jffs part of the flash with the
customer specific configurations /etc configuration files).
Recently, I've decided to add cron to this platform and something very
strange appear.
My /etc/crontab file is very simple:
-----------------------------------------------
SHELL=/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=""
HOME=/
#test of cron
* * * * * root echo date >>/tmp/essai
-----------------------------------------------
everything works fine when I boot on a nfs file-system.
But nothing is done (/tmp/essai not created) if I boot on the cramfs
file-system.
And what is the only difference beetwen the two startup:........ the
timestamp of the /etc/crontab (1/1/1970 for crontab coming from the
cramfs)
So I try something after having boot on cramfs:
echo "#toto">>/etc/crontab
And ones I have done this, the cron process start to work correctly,
creating and editing the /tmp/essai.
I know that cron verify if the /etc/crontab has changed every mn, so I
think this is the reason it works after, but why does it not see the
first crontab file ?
It's juste like the 1/1/1970 timestamp of /etc/crontab make him
invisible by cron.
Does anyone having an idea or having already encounter this kind of
problem ?
I have find nothing on the web about this or a similar problem.
Thanks for any help
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