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Auto-Run Script Upon System Boot Up

Auto-Run Script Upon System Boot Up

Owned by Tracy Yang (Unlicensed)
Apr 26, 2023


From PicOS2.9.1, user can add customized scripts which will run automatically upon system boot up.

The script at /cftmp/auto/pre-nos will be started when Linux booting is over. The script at /cftmp/auto/post-xorplus will be launched when XorPlus is ready. And the script at /cftmp/auto/post-ovs will be launched when OVS is ready.

The files pre-nos/ post-xorplus/ post-ovs are not existing in directory /cftmp/auto defaultly. If user want to run the scripts, they need to create them and make sure they are read and write files.


Example 1:

Run script when Linux booting over.

admin@PicOS-OVS$sudo touch /cftmp/auto/pre-nos
admin@PicOS-OVS$sudo chmod 777 /cftmp/auto/pre-nos
admin@PicOS-OVS$sudo vi /cftmp/auto/pre-nos
echo "####################Start add linux scripts####################"
echo "####################Add linux scripts finished####################"
 
admin@PicOS-OVS$sudo reboot
...
...
[ ok ] Starting enhanced syslogd: rsyslogd.
[ ok ] Starting periodic command scheduler: cron.
[ ok ] Starting OpenBSD Secure Shell server: sshd.
####################Start add linux scripts####################
####################Add linux scripts finished####################
Auto Provisioning Tool - checking updates ....
No tftp server address found, exit now
[ ok ] Stopping enhanced syslogd: rsyslogd.
[ ok ] Starting enhanced syslogd: rsyslogd.
[ ok ] Stopping internet superserver: xinetd.
[ ok ] Restarting OpenBSD Secure Shell server: sshd.
[ ok ] Create Inventory database file.
[ ok ] Starting web server: lighttpd.
[ ok ] Starting network snmp: snmpd.
[....] Starting: Open vSwitch/OpenFlowdevice ovs-pica8 entered promiscuous mode
device br0 entered promiscuous mode
. ok 
 
OVS login:


Example 2:

Run script when OVS is ready.

admin@PicOS-OVS$sudo touch /cftmp/auto/post-ovs
admin@PicOS-OVS$sudo chmod 777 /cftmp/auto/post-ovs
admin@PicOS-OVS$sudo vi /cftmp/auto/post-ovs
echo "Start add ovs scripts"
ovs-vsctl del-br br0
ovs-vsctl add-br br0
ovs-vsctl add-port br0 te-1/1/1
ovs-vsctl add-port br0 te-1/1/2
ovs-vsctl add-port br0 te-1/1/3
ovs-ofctl add-group br0 group_id=1,type=select,bucket=output:2,bucket=output:3
ovs-ofctl add-meter br0 meter=1,kbps,stats,band=type=drop,rate=10000
ovs-ofctl add-flow br0 in_port=1,actions=meter:1,group:1
echo "Add ovs scripts finished"
 
admin@PicOS-OVS$sudo systemctl restart picos
..........................


Example 3:

Run script when Xorplus is ready.

admin@XorPlus$sudo touch /cftmp/auto/post-xorplus
admin@XorPlus$sudo chmod 777 /cftmp/auto/post-xorplus
admin@XorPlus$sudo vi /cftmp/auto/post-xorplus
echo "Start add xorplus scripts"
/usr/bin/cli -c 'configure;
set interface gigabit-ethernet te-1/1/1 crossflow enable true;
set interface gigabit-ethernet te-1/1/1 crossflow local-control false;
set interface gigabit-ethernet te-1/1/2 crossflow enable true;
set interface gigabit-ethernet te-1/1/2 crossflow local-control false;
set interface gigabit-ethernet te-1/1/3 crossflow enable true;
set xovs enable true;
commit'
ovs-vsctl del-br br0
ovs-vsctl add-br br0
ovs-vsctl add-port br0 te-1/1/1
ovs-vsctl add-port br0 te-1/1/2
ovs-vsctl add-port br0 te-1/1/3 -- set interface te-1/1/3 type=crossflow
ovs-ofctl add-group br0 group_id=1,type=select,bucket=output:2,bucket=output:3
ovs-ofctl add-meter br0 meter=1,kbps,stats,band=type=drop,rate=10000
ovs-ofctl add-flow br0 in_port=1,actions=meter:1,group:1
echo "Add xorplus scripts finished"
 

admin@PicOS-OVS$sudo systemctl restart picos
..........................
root@XorPlus> 
Execute command: configure.
Entering configuration mode.
There are no other users in configuration mode.
root@XorPlus# 
Execute command: 
set interface gigabit-ethernet te-1/1/1 crossflow enable true.
root@XorPlus# 
Execute command: 
set interface gigabit-ethernet te-1/1/1 crossflow local-control false.
root@XorPlus# 
Execute command: 
set interface gigabit-ethernet te-1/1/2 crossflow enable true.
root@XorPlus# 
Execute command: 
set interface gigabit-ethernet te-1/1/2 crossflow local-control false.
root@XorPlus# 
Execute command: 
set interface gigabit-ethernet te-1/1/3 crossflow enable true.
root@XorPlus# 
Execute command: 
set xovs enable true.
root@XorPlus# 
Execute command: 
commit
.
Commit OK.
Save done.
root@XorPlus# 
ovs-vsctl: no bridge named br0
device ovs-pica8 entered promiscuous mode
device br0 entered promiscuous mode
Add xorplus scripts finished
admin@XorPlus$


 



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