Sudo apt install upgrade update#
An update should always be performed before an upgrade or dist-upgrade.Īpt-get upgrade will fetch new versions of packages existing on the machine if APT knows about these new versions by way of apt-get update. The indexes of available packages are fetched from the location(s) specified in /etc/apt/sources.list(5). Used to re-synchronize the package index files from their sources. It will do this for all repositories and PPAs. Instead, it updates the package lists for upgrades for packages that need upgrading, as well as new packages that have just come to the repositories.Īpt-get update downloads the package lists from the repositories and "updates" them to get information on the newest versions of packages and their dependencies.
However, when I am managing a server, I prefer to see what updates are available and then decide whether or not I am going for an upgrade.In a nutshell, apt-get update doesn't actually install new versions of software. For more on this topic, you can read my article explaining the difference between the apt and apt-get commands.Īs a desktop user, I don’t always check the packages that can be upgraded. The ability to list upgradable packages is one of the several new features the apt command brought over the older apt-get command. Because that package will be upgraded (with the newer kernel). However, you would still see “linux-generic-hwe” kind of package in the list of upgradable packages. It’s because the system treats them as new packages, not an upgrade on already installed package linux-headers-a-b. When you run the ‘apt list –upgradable’ command it shows all the packages that can be upgraded.īut if there are new kernel versions available, they might not be shown since the kernel package name starts with linux-headers-x-y. You can remove the hold with this command: sudo apt-mark unhold package_name Does it show the kernel upgrades? With that, the given package won’t be upgraded when you upgrade all the system packages. You can also do the opposite and hold selected packages from the upgrade. You can also upgrade selected few packages by providing their name: sudo apt -only-upgrade install package1 package2 It won’t install the given package if it is not already installed. With the -only-upgrade flag, you ensure that a package is only upgraded (if it is already installed). sudo apt -only-upgrade install package_nameĪctually, if you run the apt install command on an already installed package for which an update is available, it will upgrade the package. If you are managing an Ubuntu server and you don’t want to upgrade all the packages but only one of a few selected ones (like MySQL/Ngnix), you can do that easily with the apt command. Running an upgrade simulation with apt command Upgrade only the selected packages The apt command tells you how many packages can be upgraded at the end of the update command:
So, to list all the upgradable packages on your Ubuntu or Debian system, you should update the local package cache first: sudo apt updateĪnd then your system will be aware of the available package updates. In other words, it works with apt packages only. So, if you have added PPAs or external repositories to your system’s sources.list, you’ll see the updates from them.īut you won’t get updates for AppImage, Flatpak, Snap or some other packaging formats here. What you should know here is that you only get to list the updates available through the APT package manager. Let’s talk about it in a bit more detail. That’s one of the several new features apt has added on top of the older apt-get command. I don’t recall any similar direct option in the older apt-get command to list all the upgradable packages. Fetched 1,243 kB in 17s (71.4 kB/s)ģ0 packages can be upgraded. In fact, the apt command adds this hint when you run the sudo apt update command to update the local package repository cache. It just lists the packages that can be updated. And to display them, all you have to do is to use this command in the terminal: apt list -upgradableĪs you can notice, you don’t even need sudo to list the updatable packages. One of them is the ability to see all the upgradable packages on your system. While you are probably already familiar with the install and remove options, apt provides a few extra features as well. The apt command is used for package management in Debian and Ubuntu.
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