Because of bug #693758 I'd like to prevent
apt-get upgrade and Update Manager from updating the "libgtk2.0-0" package.
How can this be achieved?
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There are four ways of holding back packages: with dpkg, apt, aptitude or dselect.
Put a package on hold:
echo "<package-name> hold" | sudo dpkg --set-selections
Remove the hold:
echo "<package-name> install" | sudo dpkg --set-selections
Display the status of your packages:
Display the status of a single package:
dpkg --get-selections | grep "<package-name>"
Hold a package:
sudo apt-mark hold <package-name>
Remove the hold:
sudo apt-mark unhold <package-name>
Show all packages on hold:
sudo apt-mark showhold
With dselect, enter the [S]elect screen, find the package you wish to hold in its present state and press = or H. The changes will take effect immediately after exiting the [S]elect screen.
The following approaches are limited in that locking/holding a package within aptitude or synaptic doesn't affect apt-get/apt.
Hold a package:
sudo aptitude hold <package-name>
Remove the hold:
sudo aptitude unhold <package-name>
Go to Synaptic Package Manager (System > Administration > Synaptic Package Manager).
Click the search button and type the package name.
When you find the package, select it and go to the Package menu and select Lock Version.
That package will now not show in the update manager and will not be updated.
sudo apt-get install synaptic.
gksudo synaptic and on the search box locate the package you want to lock, ie:
From the package menu select Lock version:
And that is all, the version currently installed at the time of the lock will stay installed even during upgrades.
Preventing a package from being installed is called "package holding" and it is very simple to do:
echo package_name hold | dpkg --set-selections
...where *package_name* is the name of the package you want to prevent from installation.
Note: the above command assumes root privileges. In other words, you will probably need to type
sudo su before running it.
Since some time
apt-get is replaced by
apt, so for example I want to prevent Firefox from updating to version above 56, because a lot of add-ons, like "Tab Groups" don't work any more with the new Firefox 57 (see "WebExtensions Update").
It is possible to hold more than one packages with one command and use wildcards.
sudo apt-mark hold firefox firefox-locale-*
If you should deside to unhold them later, that would be the command:
sudo apt-mark unhold firefox firefox-locale-*
Everything you ever wanted to know about "holding" and "pinning" packages to specific versions: https://help.ubuntu.com/community/PinningHowto
I synaptic you can freeze the version of a specific package I'm not a 100% sure as to whether this will amend apt-get but it will definately stop update manager.
To freeze a package select it in synaptic then open the package menu and select freeze version.
Hope this helps
edit: This question 16668 deals with a similar situation
Adding details to @soger's comments relative to Ubuntu 16.04.
Ubuntu 16.04 does not have an existing /etc/apt/preferences file by default. If you don't have one currently, just create a new file and populate it with a stanza as @soger describes above to exclude the given package and its dependencies from updates.
apt update and you're GTG. :0)
For example, I have an Ubuntu 16.04.5 LTS server with embedded Intel video card and an NVidia card. The NVidia card is the only one used. The server also uses CUDA drivers. I had a problem where
apt kept insisting
(Intel drivers) required an update, but it could not determine which version to install. This was driving me nuts, and I didn't need the Intel drivers anyway. I entered this text into the preferences file and flushed apt, problem solved.
Package: va-driver-all Pin: release * Pin-Priority: -1
You can use on aptitude the "specific override", like this:
aptitude reinstall ~i oracle-java8-jre:
This is a one time only use of (not stored for future reinstalls), keep specific override, to reinstall all packages in your system but not oracle-java8-jre.
If you use a keep specific override, the package will momentarily be in a state of keep an aptitude will not try to install it.
A very good thing if you think your system was compromised some how as you can reinstall everything in just one punch card.
Occasionally one might want to hold back all the packages currently installed. Here's how.
First save the current state, so you can undo:
dpkg --get-selections > current_selections.txt
Then, to hold back all the packages:
dpkg --get-selections | sed -r "s/\tinstall/hold/" |dpkg --set-selections
Finally, when you want to revert back to the previous state:
dpkg --set-selections < current_selections.txt
One use case for this might be when creating a VM or Amazon AMI snapshot to migrate from a QA to production environment.