For whatever reason, you might find yourself in a situation where your system isn't booting. Rather than doing a Clean Install, you may be able to recover your system.
chroot to gain access to and recover your broken installationPlease read the disclaimer before proceeding. This solution is updated regularly. If you have suggestions or requests, please share your thoughts on the Guided Solution Authorship Form.
As opposed to the Clean Install method, it may be more worthwhile to recover your installation. A Clean Install will require you to reinstall all applications you had before, which may be time-consuming in and of itself. Using recovery media to recover your installation might be preferable.
Do keep in mind, however, that this process may be even more time-consuming than a simple Clean Install, however the method may be more desirable as you would not have to set-up your environment again.
There are several reasons why your system may have failed, including an interrupted package upgrade, a failed update to the Initial RAM disk (which is part of the boot process), or a full /boot directory due to too many kernels. Whatever the reason, this guide is designed to get you back up and running and should be used prior to the Clean Install method mentioned above.
Please see this section in our Clean Install guided solution for this step. Once you have created the USB media, do not follow the rest of the steps in that section. Instead, return here.
To boot using the USB stick created in the linked section above:
F2 repeatedly on your keyboard.Boot Manager from the options on the screen, using either the touchpad or your cursor keys.Start Kubuntu from the boot menu.Try Kubuntu from the graphical prompt.
chroot to gain access to and recover your broken installationPlease see this article for steps to gain access to the broken system via chroot. Once access has been gained you may do a number of things to recover your system.
This list is not exhaustive. Using a web search for your specific problem and finding a solution is always the best. Unfortunately, we cannot foresee every issue that may happen so the list below is just a starting point.
focusrx. We developed this utility to fix most issues you may run into with your Kubuntu Focus.sudo apt update && sudo apt dist-upgrade.aptitude for ncurses-based graphical package management to install and/or uninstall packages that may have caused the problem. This interface can be navigated using a keyboard and/or mouse.Content will be added as needed.
This is a partial revision history. See the git repository for all entries.
2021-05-17 c75588e9 First VersionWe try hard to provide a useful solution validated by professionals. However, we cannot anticipate every situation, and therefore cannot guarantee this procedure will work for your needs. Always backup your data and test the solution to determine the correct procedure for you.
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