We all run into this on a daily basis. That’s why I had to add this one for sure.
First things first, let’s open up a terminal and edit your php.ini file.
I normally gedit for my personal preference. This is assuming you have a GUI of some sort. Such as: Gnome, Xubuntu, Kubuntu, blah blah. In the case you don’t have a GUI obviously you are going to have to use Gedit or VIM or something like that.
type this into your terminal
sudo gedit /etc/php5/apache2/php.ini
Once it’s opened find the line that says
file_uploads = On
upload_max_filesize = 10M
Eureka!! Now you can change it to what you like
Side Note: For those of you using forms to upload your files. You might want to read this as well. By default the php.ini files restrict post uploads to 8 meg. Find the line that says
post_max_size = 8M
Change that to whatever you wish. I hope this helps. Feel free to ask questions below if you have trouble.