I'm a Windows user switching to Linux Mint v22.3, and I want to know how to install software offline. Unlike Windows, where I can save installers to an external drive, I'm struggling to find a way to install software that's not included in my distribution without an internet connection. Most guides assume I can just use sudo apt install online, but that's not an option for me. Any tips?
5 Answers
To install software offline, you typically need to download the installer, like a .deb file. Once you have it, just right-click and select 'Open with Software Center' on Ubuntu or use whatever installer is available for your distro. Synaptic is another good option for .deb files.
If you're going offline, make sure to check your archived software versions since they might be outdated or have security issues due to dependencies. You can use `apt-get download` to grab the .deb packages you need beforehand, then install them manually later using `dpkg`.
Your approach will vary depending on the software, but generally, you can download .deb packages, source files for building later, or try AppImages and Flatpaks. Some distributions have bundled installation images that you can use as an offline repository by mounting the ISO.
For a truly offline solution, consider downloading an installation DVD of your distro. You can install packages directly from the DVD. Alternatively, if you have some internet access, setting up a local repo mirror is a great long-term solution.
You can also back up .deb files from the cache in `/var/apt/cache` folder for apt. Just restore those files to the same location when you're offline, and apt can install them. Just remember, you might not get the latest versions this way.
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