Checking the hard disk
- Open Disks from the Activities overview.
- Select the disk you want to check from the list of storage devices on the left.
- Click the menu button and select SMART Data & Self-Tests….
- See more information under SMART Attributes, or click the Start Self-test button to run a self-test.
Ubuntu uses two different tools for system
update: apt-get: Command line tool.
Update Manager: GUI tool.
Ubuntu Linux
- Check the updates you want to install. By default all updates are selected.
- Click the Install Updates button.
- Enter your user (sudo) password.
- Click OK.
Apport intercepts Program crashes, collects debugging information about the crash and the operating system environment, and sends it to bug trackers in a standardized form. It also offers the user to report a bug about a package, with again collecting as much information about it as possible.
- Step 1) Download Ubuntu 18.04 LTS ISO File.
- Step 2) Create a Bootable Disk.
- Step 3) Boot from USB/DVD or Flash Drive.
- Step 4) Choose your Keyboard layout.
- Step 5) Preparing to Install Ubuntu and other Software.
- Step 6) Select the appropriate Installation Type.
- Step 7) Select Your Time zone.
Follow the steps below to check Ubuntu version from the command line:
- Open your terminal either by using the Ctrl+Alt+T keyboard shortcut or by clicking on the terminal icon.
- Use the lsb_release -a command to display the Ubuntu version. lsb_release -a No LSB modules are available.
2 Answers
- Find your package in /var/lib/dpkg/info , for example using: ls -l /var/lib/dpkg/info | grep <package>
- Move the package folder to another location, like suggested in the blog post I mentioned before.
- Run the following command: sudo dpkg --remove --force-remove-reinstreq <package>
Unmet dependencies means that the package you are trying to install requires a specific package but apt can not find it.
Run the command it tells you to sudo dpkg --configure -a and it should be able to correct itself. If it doesn't try running sudo apt-get install -f (to fix broken packages) and then try running sudo dpkg --configure -a again. Just make sure you have internet access available so that you can download any dependencies.
So if you have a .deb file, you can install it by:
- Using: sudo dpkg -i /path/to/deb/file sudo apt-get install -f.
- Using: sudo apt install ./name.deb. Or sudo apt install /path/to/package/name.deb.
- First installing gdebi and then opening your . deb file using it (Right-click -> Open with).
2 Answers
- Find your package in /var/lib/dpkg/info , for example using: ls -l /var/lib/dpkg/info | grep <package>
- Move the package folder to another location, like suggested in the blog post I mentioned before.
- Run the following command: sudo dpkg --remove --force-remove-reinstreq <package>
When you use apt to install a package, under the hood it uses dpkg . When you install a package using apt, it first creates a list of all the dependencies and downloads it from the repository. Once the download is finished it calls dpkg to install all those files, satisfying all the dependencies.
Running sudo apt-get update (or sudo aptitude update ) updates this on your local system. This is the step that actually retrieves information about what packages can be installed, including what updates to currently installed packages packages are available, from Internet sources.
They are very similar command line tools available in Trusty. apt-get and apt-cache 's most commonly used commands are available in apt . apt-get may be considered as lower-level and "back-end", and support other APT-based tools. apt is designed for end-users (human) and its output may be changed between versions.
apt-get dist-upgrade will update all packages to the newest available version no matter what. It will also install and remove dependencies as needed (install dependencies to satisfy packages, obviously, but also remove dependencies that became orphaned if a package that was updated no longer needed the dependency.
Following are the possible solution :
- Manually need to install the top-level modules, containing unmet dependencies: npm install findup-sync@0.1.2.
- Re-structure your package. json. Place all the high-level modules (serves as a dependency for others modules) at the bottom.
- Re-run the npm install command.
For Ubuntu the correct method to remove packages through the console is:
- apt-get –-purge remove skypeforlinux.
- dpkg –-remove skypeforlinux.
- dpkg –r packagename.deb.
- apt-get clean && apt-get autoremove. sudo apt-get -f install.
- #apt-get update. #dpkg –-configure -a.
- apt-get -u dist-upgrade.
- apt-get remove –dry-run packagename.
Option 1: Install Python 3.7 Using apt (Easier)
- Step 1: Update and Refresh Repository Lists. Open a terminal window, and enter the following: sudo apt update.
- Step 2: Install Supporting Software.
- Step 3: Add Deadsnakes PPA.
- Step 4: Install Python 3.7.
Options to Fix sub-process /usr/bin/dpkg returned an error code (1)
- Method 1: Reconfigure dpkg Database.
- Method 2: Force-Install the Software.
- Method 3: Remove Bad Software Package.
- Method 4: Clean Out Unused Software Packages.
- Method 5: Remove Post Files.
- Method 6: Overwrite Package File.
'Broken packages' are packages that have unsatisfied dependencies. If broken packages are detected, Synaptic will not allow any further changes to the system until all broken packages have been fixed. Choose Edit > Fix Broken Packages from the menu. Choose Apply Marked Changes from the Edit menu or press Ctrl + P.
Launch Synaptic Package Manager and select Status on the left panel and click on Broken Dependencies to find the broken package. Click on the red box to the left of the package's name, and you should get the option to remove it. Mark it for complete removal, and click on Apply on the top panel.
There are two things you can do in order to cancel the upgrade:
- Try running the following command: # sudo apt-get autoclean.
- Emptying /var/cache/apt/archives/partial To do that, open a file manager using the gksudo command, such as: # gksudo nautilus /var/cache/apt/archives/partial.
autoremove (apt-get(8)) autoremove is used to remove packages that were automatically installed to satisfy dependencies for other packages and are now no longer needed as dependencies changed or the package(s) needing them were removed in the meantime.
Launch Synaptic Package Manager and select Status on the left panel and click on Broken Dependencies to find the broken package. Click on the red box to the left of the package's name, and you should get the option to remove it. Mark it for complete removal, and click on Apply on the top panel.
Synaptic is a GTK-based graphical user interface for the APT package manager used by the Debian Linux distribution and its derivatives. Synaptic is usually used on systems based on deb packages but can also be used on systems based on RPM packages.
