Hey there, let's work through this issue together—Debian 7.11 (Wheezy) is an older release that's reached end-of-life (EOL), so the default package sources are no longer active, which is almost certainly why you're hitting this error. Here's how to resolve it step by step:

Step 1: Replace outdated package sources #

Since official support for Wheezy ended years ago, the standard repos are no longer hosted. We need to point your system to Debian's archive servers instead. First, back up your existing sources list to avoid breaking anything:

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

Open the sources list with a text editor (nano is user-friendly for beginners):

sudo nano /etc/apt/sources.list

Replace all existing content with these lines to use the archive repository:

deb http://archive.debian.org/debian wheezy main contrib non-free
deb-src http://archive.debian.org/debian wheezy main contrib non-free

Save and exit nano by pressing Ctrl+O, hit Enter, then Ctrl+X.

Step 2: Fix GPG signature errors #

When you update your package cache next, you'll probably get GPG errors because Wheezy's old signing keys aren't in your system by default. Import them with these commands:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553 7638D0442B90D010

Step 3: Install the correct PHP package for Wheezy #

Debian 7 doesn't have a generic php package—that's a convention introduced in newer Debian releases. Instead, the PHP 5 package is named php5. First refresh your package cache:

sudo apt-get update

Then install PHP 5 (add common extensions if your installer needs them):

sudo apt-get install php5 php5-cli php5-fpm

For example, if your script requires MySQL support, add php5-mysql to the command.

Step 4: Run your installer script again #

Now that the package sources work and PHP is available (as php5), you can re-run ./installer.sh. If the script explicitly tries to install php instead of php5, you'll need to edit the script and replace all instances of php with php5 to match Wheezy's package naming.

内容的提问来源于stack exchange，提问作者benjamin nyqvist