How to move OcotoPi (OctoPrint on Raspberry Pi 3+) to a new Network

If you’re renaming your network or taking your OctoPi & Printer on the road you may need to change the name and credentials of the Wifi network to work. It’s not hard to do but you will need to connect to the Raspberry Pi console directly. This is when having the Raspberry PI LCD screen comes in really handy.

Once you’re looking at the Raspberry Pi console the network setup file is in

/boot/octopi-network.txt
sudo nano /boot/octopi-network.txt

You will recognize this file from initial setup. Just change the name and password to the new network and reboot.

Handy Linux Commands

Get the size of the folders in any directory

du -sh folder_location/*

Search for content of a file from the command line

grep [--include=file_pattern.extension] -rnwl "matching pattern"
http://stackoverflow.com/questions/16956810/finding-all-files-containing-a-text-string-on-linux

Create a new SVN Repo

sudo svnadmin create /svn/repos/repo_name
sudo chown -R www-data:www-data /svn/repos/repo_name

Remove Directory and Contents

rm -r mydir

List CPU Usage of running processes

top

Get Wireless Signal Information

iwconfig

will save in /tmp/file_list_$FOLDER an alphabetically ordered list of all the files inside $FOLDER, complete with the corresponding sub-folders

find $FOLDER -type f | cut -d/ -f2- | sort > /tmp/file_list_$FOLDER

1and1 Cloud Hosting Odoo Install – Ubuntu 14.04

You can install Odoo from the Bitnami package but I wanted to have it from source so that I could make changes and get updates with the git commands.

I followed this guide to get started

https://www.linode.com/docs/websites/cms/install-odoo-9-erp-on-ubuntu-14-04

Which got me most of the way there but I still had 2 problems.


 

1 creating the database gave me an error

DataError: encoding UTF8 does not match locale en_US DETAIL: 
The chosen ****** setting requires encoding LATIN1.

To fix this I ran the following commands

sudo su postgres

psql

update pg_database set datistemplate=false where datname='template1';
drop database Template1;
create database template1 with owner=postgres encoding='UTF-8' lc_collate='en_US.utf8' lc_ctype='en_US.utf8' template template0;

update pg_database set datistemplate=true where datname='template1';

 


 

Then once I had created my database I got an error at the top of the page

/usr/bin/env : node: No such file or directory in ovoo v9
– /website/static/src/less/import_bootstrap.less
– /web/static/src/less/variables.less
– /web/static/src/less/enterprise_compatibility.less
– /web/static/src/less/utils.less
– /web/static/src/less/modal.less
– /web/static/src/less/notification.less
– /base_import/static/src/less/import.less
– /web_tip/static/src/less/tip.less
– /web_calendar/static/src/less/web_calendar.less
– /web_diagram/static/src/less/diagram_view.less
– /web_kanban/static/src/less/kanban_dashboard.less
– /web_kanban/static/src/less/kanban_view.less
– /web_settings_dashboard/static/src/less/dashboard.less

To fix follow the instructions from the NodeJS Website:

curl -sL https://deb.nodesource.com/setup_0.10 | sudo bash -
sudo apt-get install -y nodejs
sudo npm install -g npm

Then install Less and accessories:

 sudo npm install -g less less-plugin-clean-css

Cleanup Ubuntu /boot directory

use the ‘df’ command to confirm that boot is full
cd /boot
ls -la //to see the files

You will notice a lot of files that seem to have old versions. It’s safe to remove all but the most recent of these files.

Capture
sudo rm *.0-23-* //to remove the version numbers that are unnecessary
repeat the process until you only have one latest version left. If you delete the latest version you will seriously mess up your system so be careful.

a final ‘df’ will confirm that you have freed enough space

The Simple Way to Mount a Network Drive on Lubuntu – Ubuntu – Debian

There are lots of answers out there for this problem and they are all absurdly complicated. Here’s the easy way to do it and it takes about 2 minutes.

If you don’t have cifs installed then you’ll need to install the utils package. It’s not installed by default with lubuntu. The command is “sudo apt-get install cifs-utils

Create a director to map this folder to in your media folder “sudo mkdir /media/{your folder name}

Then you need to edit your fstab file. “sudo leafpad /etc/fstab

To the end of the file add the following line; remember to replace the sections in brackets with your information
//{your drive IP address}/{any sub folders you want} /media/{your folder name} cifs username={drive_username},password={drive_password}

To test if it’s working type “sudo mount -a” if you did it wrong this will give you some useful error messages. Unfortunately cifs only supports IP addresses currently so you’re stuck with that. It’s generally a good idea to give things like a network drive a static IP address.

Earlier today I installed some updates and ended up having a problem with my mount. I had to add a version flag to the end of my fstab line to get it to work. vers=1.0 I tried vers=2.0 and vers=3.0 which did not work for me.
//192.168.1.1/volume /media/nas cifs username=****,password=****,vers=1.0