How do I fix broken Ubuntu OS?

How do I fix a broken Ubuntu install?

Ubuntu fix broken package (best solution)

1. sudo apt-get update –fix-missing. and.
2. sudo dpkg –configure -a. and.
3. sudo apt-get install -f. …
4. Unlock the dpkg – (message /var/lib/dpkg/lock)
5. sudo fuser -vki /var/lib/dpkg/lock.
6. sudo dpkg –configure -a.

How do I repair Ubuntu?

The graphical way

1. Insert your Ubuntu CD, reboot your computer and set it to boot from CD in the BIOS and boot into a live session. You can also use a LiveUSB if you have created one in the past.
2. Install and run Boot-Repair.
3. Click “Recommended Repair”.
4. Now reboot your system. The usual GRUB boot menu should appear.

Can I reinstall Ubuntu without losing data?

Installing Ubuntu fresh will not affect a user’s personal data and files unless he instructs the installation process to format a drive or partition. The wording in the steps that will do this is Erase disk and install Ubuntu , and Format Partition .

How do I know if my package is broken Ubuntu?

Here are the steps.

1. Find your package in /var/lib/dpkg/info , for example using: ls -l /var/lib/dpkg/info | grep <package>
2. Move the package folder to another location, like suggested in the blog post I mentioned before. …
3. Run the following command: sudo dpkg –remove –force-remove-reinstreq <package>

Why sudo apt-get update is not working?

This error can happen when fetching the latest repositories during ” apt-get update ” was interrupted, and a subsequent ” apt-get update ” is not able to resume the interrupted fetch. In this case, remove the content in /var/lib/apt/lists before retrying ” apt-get update “.

What is Ubuntu recovery mode?

If your system fails to boot for whatever reason, it may be useful to boot it into recovery mode. This mode just loads some basic services and drops you into command line mode. You are then logged in as root (the superuser) and can repair your system using command line tools.

How do I start Ubuntu in recovery mode?

To start Ubuntu into safe mode (Recovery Mode) hold down the left Shift key as the computer starts to boot. If holding the Shift key doesn’t display the menu press the Esc key repeatedly to display the GRUB 2 menu. From there you can choose the recovery option.

How do I backup and reinstall Ubuntu?

Here are the steps to follow for reinstalling Ubuntu.

1. Step 1: Create a live USB. First, download Ubuntu from its website. You can download whichever Ubuntu version you want to use. Download Ubuntu. …
2. Step 2: Reinstall Ubuntu. Once you have got the live USB of Ubuntu, plugin the USB. Reboot your system.

How do I clean Ubuntu?

Steps to Clean Up Your Ubuntu System.

1. Remove all the Unwanted Applications, Files and Folders. Using your default Ubuntu Software manager, remove the unwanted applications that you don’t use.
2. Remove unwanted Packages and Dependencies. …
3. Need to Clean the Thumbnail Cache. …
4. Regularly clean the APT cache.

Can I install Ubuntu without USB?

You can use UNetbootin to install Ubuntu 15.04 from Windows 7 into a dual boot system without the use of a cd/dvd or a USB drive.