This short tutorial will show How to upgrade Debian Jessie to Debian Stretch.
Debian is a Unix-like computer operating system that is composed entirely of free software, most of which is under the GNU General Public License and packaged by a group of individuals participating in the Debian Project.
First, you need to have Linux server with Debian OS installed on it.If you don’t have Linux Server get it on VPSie
After, log in to your server and follow these steps.
The first step is to fully upgrade your Debian Jessie system.You can do it by following commands:
And to see on hold packages, if those packages make any problem follow this command
Now it’s time to upgrade package repositories from Jessie to Stretch.
To do it edit /etc/apt/sources.list by following this command:
cp /etc/apt/sources.list /etc/apt/sources.list_backup
Now found keyword jessie and replace to stretch like this
deb http://httpredir.debian.org/debian jessie main
deb http://httpredir.debian.org/debian jessie-updates main
deb http://security.debian.org jessie/updates main
deb http://httpredir.debian.org/debian stretch main
deb http://httpredir.debian.org/debian stretch-updates main
deb http://security.debian.org stretch/updates main
Or you can replace automatically using sed command:
sed -i 's/jessie/stretch/g' /etc/apt/sources.list
After replacing the lines go and update your packages
And to finish this, upgrade packages following those commands:
Now you successfully have upgraded you Debian from Jessie to Stretch.
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