This documentation page is about resolving a specific challenge. Which is if you installed a package. After the installation, if somehow the permissions were changed on the packaged installed folder(s) or file(s). In turn, the package is no longer working properly, or no longer working at all, or the package security is weaker. How to restore the package permissions to their default? This is the challenge.

One easy, fast, and stable way to resolve this challenge is this command below. Which automatically sets all the package permissions back to their default. Including both the package folder(s) & file(s). The end result is as if the package was freshly installed for the first time with its default permission.

Resolution 1

Step 1

Using Terminal/Console, connect into the appropriate Linux user account. This is important because in both steps 2 & 3 below all commands will be executed as this user.

Step 2

If not already done, using Terminal execute this command to install Sudo

apt install sudo

Note: For those not familiar with Sudo, allow a Linux user(s) limited super user privileges

If not already done, using Terminal execute this command to install Aptitude

sudo apt install aptitude

Note: For those not familiar with Aptitude, it is a package manager. Which is similar to Apt. Aptitude has more functionality than Apt. Aptitude includes both an interactive UI and a text-only interface/CLI. In comparison, Apt lacks an interactive UI. Aptitude is a high-level package manager while Apt is lower-level package manager.

Step 3

Choose one of the four options below. Which will reset the package permissions to their default. And keep the package(s) configuration:

Option 1: ONE package. WITHOUT Backport.

Option 2: ALL packages. WITHOUT Backport.


Option 3: ONE package. WITH Backport.


Option 4: ALL packages. WITH Backport.



Notes about all four options above

Resolution 2

Do you know any other way to resolve this challenge? You are welcome to add it here.

See also