Ive tried asking on various forums - rasppi etc.

I am running a startup script to start iceweasel on bootup. it opens 2 tabs with pages for internal sites.
Only issue with the device is that it wont be rebooted correctly it has an on and off usb power supply that will kill the power.
I am wondering if there is anything that i can do or put in a startup location or a crontab that on any bootup after power cutting out that it stops the process and then restarts the process/webpages.

Any help would be appreciated

Welcome to LinuxQuestions.

I assume the problem is caused by not doing an orderly shutdown before turning off power.

Without doing an orderly shutdown you could corrupt the SD card. When the pi boots you can create a file and delete on shutdown. If at boot time the file already exists then restart your process.

The issue i have is the environment the pi will be used in the people dont know how to use computers at all and they speak very little English. So i have an in-line power usb which powers it as if i had to get them to shut anything down it would require a mouse which they dont have as they use a scanner + keyboard combo.
I know turning them off like this can cause corruption on the cards but the cards are still cheaper than our current system which is about 10x the price of a pi itself. What sort of file would i put in the boot up? ive tried crontabs to try and find the process used by iceweasel then kill it before booting. but that hasn't seemed to work.

A better method might be to use CTRL-ALT-DEL keys
In the /etc/inittab file you should have something like:

# What to do when CTRL-ALT-DEL is pressed.
ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now

If you change the -r to -h it will shutdown the PI when CTRL-ALT-DEL keys are pressed.

1 members found this post helpful.

ill have a go at that, and see if it works. The only bit in startup in the /etc/init.d i have is @iceweasel--noerrdialogs --kiosk http://www.page-to.display

obviously i change the url but i will check it out and let you know if you it works or not
only issue is people will rather turn it off and back on than press buttons. ive tried to get them to do things before but i just want to try and get all angles covered

i have tried pressing those keys with the file changed, so it now looks like
ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -h now but the pi is still online and doesnt turn off? any ideas?

You did press Ctrl-alt-del at the same time?

yeah ive tried with ctrl alt del on 2 keyboards

tried it with ctrl altgr del also just incase it was having a funny. but neither worked on 2 different keyboards.

Don't remember if you have to reboot for changes to take affect. I don't have a PI and so do not what happens when you just pull power. What happens i.e. does it do a file system check and then boots normally etc.

Checking to see if a file exists using rc.local and if it does reboots the PI if not create it (i.e touch myfile). You also need to add a script to delete that file with an orderly shutdown.

I have rebooted a few times using sudo to make sure a proper reboot has been done. On boot it goes through the following folders

/boot/cmdline.txt
dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait q$wait quiet logo.nologo

Next thing ive set up is /etx/xdg/lxsession/LXDE/autostart

@xset s off
@xset -dpms
@xset s noblank

@iceweasel --noerrdialogs --kiosk telnet://bard bed/prod/cpm_mat.asp

only bits ive modified is to make it so i have custom images on bootup and no background, just a blank window

Anyone got any ideas? sort of at a standstill with this at the moment :/

It would be nice to know what is causing the PI to not boot correctly. What steps are failing during the boot process? That might give us a better idea about what to do. Since no one else with a Pi has chimed in I'm assuming that rebooting again will fix the problem.

Add the following lines to the rc.local file.
To make the script executable
sudo chmod +x /etc/init.d/norm_shutdown

To make the script run at shutdown or reboot.
sudo update-rc.d /etc/init.d/servod defaults

This is untested.

1 members found this post helpful.

I had a thought yesterday of removing iceweasel again, reinstalling it but then going into the options by doing about:config and then whilst i was in there i was looking at different things and i was running through most of them rebooting and testing again until i found one section of the site which said sessionrestore from crash - which was set to true i changed that to false and a few others and now i dont seem to have the issue anymore, ive wrote the script anyway and ive stored it on my pi so if it comes back ill go down that route and ill see about running that in the startup boot file.

Thank you for your help so far!