All general purpose OSes (Windows, MacOS, Linux) can be changed so that the system will no longer boot completely or behaves strangely. A corrupt or full system disk, broken software packages, misconfiguration, and many other situations can cause this. Luckily, FocusRx recognizes and fixes many of these issues.
Before you begin proceed, you will first want to determine if this is actually a system issue. If your system boots fine, this is likely an application issue. We recommend you first visit the Focus Support page and search for a topic using the list or the search box. These are almost always more current and correct for your hardware than HOWTOs or forum posts you might find on the web. You should proceed here only if your system does not completely boot or if you are getting warnings about missing dependencies or libraries.
Recovering an installation may be preferable because applications, settings, and other data will not need to be restored. However, like with all OSes, a badly broken system can take hours to recover and still be problematic. While a Clean Install requires recovery of data, it usually takes well under 30 minutes and can solve issues you do not have time to research or understand. For these reasons, we recommend you always keep a clean installation as an alternative and limit the time you dedicate to recovery efforts.
Any system work always has inherent risks. Mistakes happen, and in this context, that can result in data loss. It is important, therefore, to keep your data safe using a backup solution on an external disk. See the Backup Guided Solution to save your data before proceeding if possible.
Sometimes the system will boot but drop to a BusyBox Shell as shown below.
This frequently results from a corrupt file system, as detailed by this Ask Ubuntu ticket. The solution is to enter the command
exit into the shell to report the corrupt file system. You may then repair it using
fsck <device-file> as shown below.
After the file system repair is complete, type in
exit to reboot the system. If the repair was good (which it usually is), the system should now boot normally.
Focus systems have a recovery tool called FocusRx. This can directly resolve many issues:
/bootpartition is too full and fix it
You can run FocusRx as shown below.
Advanced Optionsto select a different kernel if available.
Startup Menu > Kubuntu Focus > FocusRx.
[ctrl][alt][f2]to get a virtual terminal. Sign in as your user and then enter
Please Download the ISO Disk Image and create a bootable, live USB. Then return here to proceed.
Boot using the USB stick as shown below.
F2repeatedly on your keyboard.
Boot Managerfrom the BIOS options on the screen, using either the touchpad or your cursor keys.
Start Kubuntufrom the boot menu.
Try Kubuntufrom the graphical prompt.
1. Use the live USB to boot into the Try Kubuntu mode.
2. If you do NOT have an encrypted drive, skip to step 3. Otherwise, decrypt it now.
3. Mount the partition on
If you haven’t yet backed up your data, please do so NOW! See the Take a Snapshot with USB Drive to save your important files to a separate drive. You can find your user data under
/mnt/home/. While each subsequent step below is usually safe, each brings additional risk because of unknown system state or human error. Better safe than sorry.
5. Prepare and use
6. Once the system has successfully switch to
chroot mode, run FocusRx. See the section on FocusRx above for how to run and what this fixes.
See this article for additional details on using
Here are a few more steps you might try if FocusRx does not solve the problem:
sudo apt update && sudo apt full-upgrade(this is also done by FocusRx).
aptitudefor ncurses-based graphical package management to install or uninstall packages that may have caused the problem. This interface can be navigated using a keyboard or mouse.
If you are still seeing issues, please write firstname.lastname@example.org.
Content will be added as needed.
This is a partial revision history. See the
git repository for all entries.
2022-01-22 97da7ffeReference USB snapshot in backup article
2021-10-10 5728326eReformat to 2-column
2021-09-22 dc862884Update link and headline colors
2021-08-23 681261b4Review and update codeblocks
2021-08-22 c1974de6Add CHROOT Recovery Steps
2021-08-22 c1974de6Add USB Drive Snapshot
2021-08-19 20a66a1cAdd Busybox Shell Recovery
2021-08-05 c25e459eFix Grammar Mistakes
2021-07-23 9e6157ceAdd FocusRx Direction
2021-05-17 c75588e9First publication
We 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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