boot – Ubuntu – Boot Problems – (unknown file system errors) Version 18.04.1 LTS

Yesterday, when an external USB drive was formatted, I thought that I initially made a mistake when I chose the wrong drive. Everything was so good, nothing went wrong at first.

After all that happened, my computer worked fine. I went to bed, woke up today and started working, and everything was fine (I did not turn off last night when I was in sleep mode). However, I tried to install this dev tool and make sure everything worked. I restarted it and it does not start properly, just an "unknown file system" error when I boot.

I used a live USB Ubuntu (Try Ubuntu) to restore and followed some instructions on using the boot repair from: wont-boot /

I did that, trying to reboot, and still ended up with the same file system error. Remember, I've already checked all file systems with Grub's commands to see if they were loaded from the right partition, but they all came up and had no ideas.

Video driver causing boot problems | Ubuntu 18.04.1

I added the video drivers to PPA and installed the 415 driver, but it appeared that my 940MX was no longer used. So I tried to get back to the 390. However, I made the mistake of removing the PPA before I left. When I tried to switch back to the 390 driver, Ubuntu spat a bug – I can not remember the message exactly, though I think something was not found in the cache.

After I restarted my system, the boot process stalled on a screen displaying countless messages about starting the NVIDIA persistence daemon and stopping the NVIDIA persistence daemon. To boot the system, I had to invoke and use the recovery mode Prime-select information, If I use the Nouveau driver, the system can boot, but my laptop does not seem to use my GPU.

To run nvidia-smi produces the following:

NVIDIA SMI failed because it can not communicate with the NVIDIA driver. Make sure the latest NVIDIA driver is installed and running.

I followed the advice here, but unfortunately it did not help. I tried to remove any residue that the 415 driver may have left behind. At first I looked at this thread, but with regard to the page linked by it, the directory /usr/local/cuda-X.Y does not exist (as in, there is no cuda-related directory) and the link / usr / bin / nvidia-uninstall points to NVIDIA Installerbut that does not exist. So I removed the packages as recommended according to this answer. I then set the driver in the software settings to NVIDIA 390, so everything was reinstalled. However, I can not boot by restarting with the selected NVIDIA GPU.

The result of dpkg -l | grep nvidia At the time of writing is the following:

ii libnvidia-cfg1-390: amd64 390.77-0ubuntu0.18.04.1 amd64 NVIDIA binary OpenGL / GLX configuration library
ii libnvidia-common-390 390.87-0ubuntu0 ~ gpu18.04.1 all shared files used by NVIDIA libraries
ii libnvidia-compute-390: amd64 390.77-0ubuntu0.18.04.1 amd64 NVIDIA libcompute package
i libnvidia-compute-390: i386 390.77-0ubuntu0.18.04.1 i386 NVIDIA libcompute package
ii libnvidia-decode-390: amd64 390.77-0ubuntu0.18.04.1 amd64 NVIDIA Video Decoding Runtime Libraries
i libnvidia-decode-390: i386 390.77-0ubuntu0.18.04.1 i386 NVIDIA Video Decoding Runtime Libraries
ii libnvidia-encode-390: amd64 390.77-0ubuntu0.18.04.1 amd64 NVENC Video Encoding Runtime Library
ii libnvidia-encode-390: i386 390.77-0ubuntu0.18.04.1 i386 NVENC Video Coding Runtime Library
ii libnvidia-fbc1-390: amd64 390.77-0ubuntu0.18.04.1 amd64 NVIDIA OpenGL-based framebuffer Capture runtime library
ii libnvidia-fbc1-390: i386 390.77-0ubuntu0.18.04.1 i386 NVIDIA OpenGL-based framebuffer Capture runtime library
nI libnvidia-gl-390: amd64 390.77-0ubuntu0.18.04.1 amd64 NVIDIA OpenGL / GLX / EGL / GLES GLVND Libraries and Volcano ICDs
i libnvidia-gl-390: i386 390.77-0ubuntu0.18.04.1 i386 NVIDIA OpenGL / GLX / EGL / GLES GLVND Libraries and Volcano ICDs
ii libnvidia-ifr1-390: amd64 390.77-0ubuntu0.18.04.1 amd64 NVIDIA OpenGL-based inband frame readback runtime library
i libnvidia-ifr1-390: i386 390.77-0ubuntu0.18.04.1 i386 NVIDIA OpenGL-based inband frame readback runtime library
nvidia-compute-utils-390 390.77-0ubuntu0.18.04.1 amd64 NVIDIA utilities
nvidia-dkms-390 390.77-0ubuntu0.18.04.1 amd64 NVIDIA DKMS package
nvidia-driver-390 390.77-0ubuntu0.18.04.1 amd64 NVIDIA driver metapackage
nvidia-kernel-common-390 390.87-0ubuntu0 ~ gpu18.04.1 amd64 Common files used with the kernel module
nvidia-kernel-source-390 390.77-0ubuntu0.18.04.1 amd64 NVIDIA kernel source package
ii nvidia-prime all tools to enable NVIDIA's Prime
ii nvidia-settings 390.77-0ubuntu0.18.04.1 amd64 Tool for configuring the NVIDIA graphics driver
nvidia-utils-390 390.77-0ubuntu0.18.04.1 amd64 NVIDIA driver support binaries
ii xserver-xorg-video-nvidia-390 390.77-0ubuntu0.18.04.1 amd64 NVIDIA Binary Xorg Driver

Driver – Slow WiFi connection on Ubuntu 18.04.1

I'm new to Ubuntu, and after installing Ubuntu on my PC, I experience an extremely slow WiFi connection (but faster under Windows). I tried to disable the 802.11n and the Intel driver card, but I get the following error message (running sudo modprobe -r iwlwifi):

rmmod: ERROR: Missing module name.
modprobe: FATAL: Error executing removal command for Iwlwifi

I also tried to follow this answer lspci -nn | grep 0280 does not return anything on my terminal.

Any help would be appreciated. Thank you very much!

Hard disk installation failed 18.04.1

I tried to install Ubuntu 18.04.1 64-bit on a seemingly healthy machine Seagate Pipeline HD (Model ST3320310CS) SATA HDD. Each time a dialog box appears, there is a "apt configuration problem" Msgstr "Attempt to configure apt to install additional packages from the CD failedThen I'm told that the installation failed. "In this Ubuntu installation, I used a USB key that was burned via Unetbootin, and this USB key allows me to see a lot of Ubuntu files being copied to my computer were. " HDD, but the installation can not be completed, I also tried another USB live key, but the result was identical: on both USB keys, the reviews of sha256sum were successful.

I've previously tried installing Ubuntu Mate 18.04.1 on the same hard drive on two different 64-bit computers (both with a USB stick and a DVD), and the message I received was very much the one above similar.

I ran the DST short test of the hard disk from the BIOS and it is passed. According to the screenshot for this hard disk (recorded via the Ubuntu Live USB stick) [NB AskUbuntu has refused to accept this png image in my post] is the rating for the disk "OK".

I am totally amazed why the installation is not completed. I have installed Ubuntu, Lubuntu etc. in the past without problems on used hard drives. However, I recently purchased this problematic hard drive from a local reseller, and although it was not shipped with any packaging, it looks unused. So I'm wondering if I have to somehow format it before installing? If so, I wonder how to proceed now with all the Ubuntu files already copied to.

Although I have gradually learned to do some very rudimentary technical things in Ubuntu (like the sha256sum check and some commands on the terminal), my know-how is still very limited. Given this and the fact that only Ubuntu is installed on this hard disk (and NOT on Windows), I wonder if you suggest following the instructions on this help page to install a new hard drive here:

The above instructions are extremely daunting for me at the moment! Do you think I might find it easier to see Seagate? "Disc Wizard" Software (available online according to sticker on the hard disk)?

Thanks in advance for all the answers.

Graphics – Ubuntu 18.04.1 on very good laptop really slow

I have Ubuntu 18.04.1 next to Windows 10 installed in my new laptop and is extremely slow. My details, as reported by Ubuntu:


What I have done so far:

It's better at this point, but still very bad. With Chromium with three tabs and a search for "screenshot" the computer freezes for at least 3 seconds.

<img src = "" alt = "Just another pressure I could get from htop Command.”/>

Is there something I forgot about installing Ubuntu? I did the same setup on different computers and it was always pretty straightforward, that never happened to me, the system is just useless.

nvidia – GTX 1060 installation on the GA-AX370 motherboard on Ubuntu 18.04.1

I have the Ryzen 3 2200G with integrated graphics. When I connect the HDMI to the motherboard and change the settings for the integrated graphics in the BIOS, it boots correctly, but when I connect HDMI to the graphics card (ZOTAC GeForce GTX 1060), it asks for a cryptographic password flashes for a while and stops on the following screen

Freeze the screen

How do I solve it? I do not think there should be a problem with my partitions because they could not be booted in the Integrated Graphics use case, and I tried setting the use_lvmetad switch from 1 to 0, but this is still displayed.

I have also installed the NVIDIA drivers. Thank you in advance. My kernel version is 4.15.0-43 and the installed NVIDIA drivers are in version 410

Driver – Epson Stylus CX4300 on Ubuntu 18.04.1 Lts

Hello everyone, I need help

I am having problems with my Epson Stylus CX4300:

First – when I add the printer from "Settings-Devices", the specific driver for the cx4300 pen is not present in the database. So I have to choose a driver between cx4200 and cx4400

Second, so I chose the CX4400 and noticed that the printing process is slow. So I changed the print option and then selected the fast mode. Then I start printing is in standby

Third, the scanner does not work at all

Fourth, I try to get the driver of the cx4300 from the epson website, and I have not found one for debian 64bit.

I hope someone would help me.

boot – Kubuntu 18.04.1 sddm lost and can not be reinstalled. Only terminal access. No GUI. NOT nVidia problem. NO REPEAT!


At first, similar questions were asked, and this is NOT like the other published issues. I do not have a NVIDIA card !!!! I have an Intel graphics processor in an HP laptop. This seems to be a fitting problem,

I have Kubuntu 18.04.1, I've been running this distribution since it came out. Suddenly, after the Kubuntu home screen, I got the "black screen of death". In recovery mode, I "somehow" caused it to start repeatedly on the same black screen, but with a blinking cursor. For your information I am a mouse monkey, so the torture was absolute.

I loaded a live Kubuntu disk and ran a fsck on all partitions, all of which returned without error.

I was able to use ALT-F2 to get a TTY terminal session. This is the furthest extent that I can get in a boot.

Attempting & # 39; xstart & # 39; and & # 39; plasma & # 39; did not do anything.

I isolated that I would not run sddm. I have checked my display manager and it is set to sddm, which should be as far as I know. I then checked and sddm was NOT INSTALLED on the system. So I tried to reinstall sddm with apt and have one "unfulfilled dependencies" Error. That is repeatable.

Then I checked my repositories and all of them are "Main", "Universe", "Multiverse", "Restricted" and "Canonical Partners". I removed the list and list.d and ran a "sudo apt update". The result showed no errors. I have a 'sudo dpkg –configure -a & # 39; and a & sudo apt install -f & # 39; made without change.

I am stuck. How can I restore sddm? Why do I get unresolved dependencies on a major component of Kubuntu, where all major repositories are present and billed? Should I reinstall apt? How do I do that because it says it's already installed? I'm at the point that I need to do a reinstall.

Many Thanks.