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Restart and then continue script

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# 1  
Old 12-06-2010
Restart and then continue script
How can I get a script to complete a update, varifiy completion, resboot, and continue with script?

Is it possbile to get script to add itself to the "startup application" list

Code:
#!/bin/bash

clear

sudo apt-get update

#Verify/test the update completed

#Reboot

#Start/comtinue script on boot

# 2  
Old 12-06-2010
It won't remember anything across reboots, so you need to create a file to store the state in.

Code:
#!/bin/bash

[ -f /path/to/state ] && STATE=$(cat /path/to/state)

case "$INSTALLSTATE" in
INSTALL)
        # continue install stuff
        ;;
*)     if apt-get update 
        then
                echo "INSTALL" > /path/to/state
                /sbin/reboot
        else
                echo "update failed" >&2
                exit 1
        fi
        ;;
esac

As for how to start it on reboot, you'll need to put it in your distro's equivalent of /etc/local.start . Making a full-fledged service for it would probably be overkill. Or if you want it to start on login, perhaps the users' .profile or .bashrc

Unless you're updating the kernel, why's a reboot needed?
This User Gave Thanks to Corona688 For This Post:
wolfgangcs
# 3  
Old 12-06-2010
Add the code you provided and I got this:

Reading package lists... Done
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
update failed

here is what is put:

Code:
#Start Setup
#Let the craziness commence

#First update begins
if [ "$Update1" == "Y" ]
then
     sudo apt-get update -y
else
     echo "Skipping first Update"
fi
sleep 1
#Apply changes to be made in update manager VIA-script

#Confirm Competition of update

#add itself to "startup apps"

#Delete the above lines so it will not repeat the same actions again

#Reboot
case "$INSTALLSTATE" in
INSTALL)
        # continue install stuff
        ;;
*)     if apt-get update 
        then
		echo "Hit control c now"
		sleep 10
                echo "INSTALL" > /path/to/state
                /sbin/reboot
        else
                echo "update failed" >&2
                exit 1
        fi
        ;;
esac

#continue script...

---------- Post updated at 05:40 PM ---------- Previous update was at 05:36 PM ----------

Quote:
Originally Posted by Corona688
Unless you're updating the kernel, why's a reboot needed?
on the clean install the first update will most likely need a restart from the update manager

so yes maybe be dealing with a new kernel
# 4  
Old 12-09-2010
Quote:
Originally Posted by wolfgangcs
Add the code you provided and I got this:

Reading package lists... Done
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
update failed
It tells you what's wrong. You're not root.
# 5  
Old 12-09-2010
@Corona688
Could you pls tell the wot does the below highlighted mean. I understand it to be the file descriptor 2 representing standard error. But wot it does exactly in this line.? Does it send the std output and std error to fd 2..?
Code:
echo "update failed" >&2

# 6  
Old 12-09-2010
Quote:
Originally Posted by michaelrozar17
Could you pls tell the wot does the below highlighted mean. I understand it to be the file descriptor 2 representing standard error. But wot it does exactly in this line.? Does it send the std output and std error to fd 2..?
Code:
echo "update failed" >&2

Close. It sends standard output to standard error. I usually do that for printing error messages since stderr is where error messages traditionally go, not stdout.
# 7  
Old 12-09-2010
So standard output here is "update failed" ..? Am i correct or wot does standard output mean.
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