Recovery mode keeps showing rather than showing OS startup after a successful USB El Capitan installation

I’am installing El Capitan 10.11 from USB installer. For that that i restarted my iMac (Early 2009) and held and kept down the Option key which made me select the device osx el capitan installer to boot from. Then i entered in utility disk and erased my 1st drive of my hard disc in format of Extended Journaled. i also did First Aid scan which seemed fine. onward i started installing OS X using OS X Utilities window which took me for the installation from USB. it took approx 12 minutes to accomplish for the successful installation and it restarted iMac. After restarting again it came to the recovery mode showing again OS X Utilities Window where you see ‘Restore from Time Machine, Reinstall OS X, Get Help Online, Disk Utility’. i also checked in Start Up Disk from the apple logo menu which is always empty. There i can’t find any startup disk even after the installation. i don’t know where i’m doing wrong. could someone please advise the right way to do it? Thank you

Error in brug installation

I’m using Linux Mint 19 Chinnamon, try to install brug with this ppa:

sudo add-apt-repository ppa:n-muench/ppa 

It shows error:

HTTP Error 404: Not Found Cannot add PPA: ''This PPA does not support bionic'' 

There is no 404 error in other this, any idea how to solve this.

NVIDIA Driver Installation Issue (Not able to Install latest version) GTX 1060 Zotac

So, whenever i tried to install NVIDIA driver through software and updates application, I used to get blank screen while booting through normal mode.

latest driver for NVIDIA is 418 so far, but in the update menu it just shows up driver version 390.

My questions:

How do i get rid of blank screen while booting?.

Is there any other reliable source to install NVIDIA driver with latest updates?.

Is that okay to run GPU without native it`s driver configuration?.

Possible to install packages to a separate Linux installation?

So I was trying to get a CentOS designed application to work on Ubuntu, and played around with some graphics drivers. Well, in my spree of copy and pasting SE suggestions into my terminal, I broke something bad. I no longer have any GUI, and am stuck in tty. Trying to run startx tells me that /usr/bin/X doesn’t exist. Awesome. I think I could fix it with

sudo apt-get install --reinstall ubuntu-desktop

but I can’t do this because I have no internet connection from tty, and cannot find any working solution to get wifi connected using wpa_supplicant, or anything else. As far as I understand, recovery mode will be useless too, without an internet connection.

So, instead I installed an Ubuntu 16.04 image onto a USB stick, and booted from there (which is what I’m typing this post from). Here, I have access to all my files, great, and have GUI and internet connection working fine.

Now, is there a way for me to repair my original Ubuntu while having booted from the USB? I don’t really know how apt-get works, but I would imagine there should be some way to download the ubuntu-desktop files while I have internet connection, and then reboot into my original Ubuntu’s tty, and do the install. No? Suggestions?


Okay, I can

sudo apt-get install --download-only ubuntu-desktop --reinstall

to get the deb package file onto the live-usb. Now figuring out how to move it to my machine/access it from my other installation…

Unable to install Ubuntu 18.04 after cancelled installation

I was attempting to install Ubuntu however halfway through the menus asking me to select the what types of files I would like to install I decided to cancel the installation by clicking the cancel button on the bottom of the window, I assumed I could come back to the installation at a later time however when I attempted to boot using the disk I had used flawlessly before. I was met with a message detailing that it;

Failed to open \EFI\BOOT\mmx64.efi - Not Found Failed to load image \EFI\BOOT\mmx64.efi: Not Found Failed to start MokManager: Not Found Something has gone seriously wrong: import_mok_state() failed : Not Found

I attempted to wipe my computer clean so I reset the computer to factory settings five times with each attempt failing to correct the issue. I am wondering if there is a way I can fully remove the corrupted pieces and attempt a clean installation of Ubuntu from the disk since I don’t have any free usb’s lying around. P.S. I am attempting to set up my computer so that it can dual boot. Thank you for your time.

Recommended manner of installation for an open source web application and api?

I’m currently working on my own open source project.

There are two parts to it at the moment, a .NET core web API and an Angular client side app.

I would like to get your views on installation/setup for my users. What I have at the moment is an install endpoint in the API itself and an install component/page on the angular app.

This all works well but after giving it more thought it doesn’t feel right. It feels I’ve ended up coupling the app and API when they should be completely separate and independent of each other. The client app should not really have to be concerned with the installation of the API.

Would it be better to build a CLI responsible for installing/upgrade both the API and APP that can be downloaded and run separately?

Ubuntu very laggy after some software installation and uninstallation

I uninstalled and installed some NVIDIA/Cuda related stuff (e.g., drivers, CUDA 10.0, previously used CUDA 10.1, libcudnn). I did all of this through ssh. I just logged onto my physical machine and it is very laggy. Typing text is very noticeably laggy.

In some searches on here users suggested to turn off animations on Ubuntu. I tried that and it didn’t improve the performance.

Below are some outputs. Is the amount (~600mb) of memory being used by xorg normal? compiz appears to be using a lot of CPU. Is this normal? What other testing could I conduct to identify other issues that may be causing the slowdown?

Here are some outputs that may be useful:

(base) dzdang@dzdang-HP-Z840-Workstation:~$   nvidia-smi Sat Mar 16 14:24:13 2019        +-----------------------------------------------------------------------------+ | NVIDIA-SMI 410.48                 Driver Version: 410.48                    | |-------------------------------+----------------------+----------------------+ | GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC | | Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. | |===============================+======================+======================| |   0  Quadro K2200        Off  | 00000000:04:00.0  On |                  N/A | | 42%   46C    P0     3W /  39W |    539MiB /  4036MiB |     16%      Default | +-------------------------------+----------------------+----------------------+  +-----------------------------------------------------------------------------+ | Processes:                                                       GPU Memory | |  GPU       PID   Type   Process name                             Usage      | |=============================================================================| |    0      1115      G   /usr/lib/xorg/Xorg                           538MiB | +-----------------------------------------------------------------------------+ 

htop output

Find My Stolen Mini Mac After Installing New Clean Mac OS X Installation

My Mini Mac Stolen From My Office and I Think It’s Stolen By My Colleague. All Of Them Are Software Engineer and I Think The Thief Will Install The Fresh Version of Mac OS X On The Stolen Mini Mac.

My Question Is , Will I See My Mac’s Location Even The Thief Install Fresh Clean Mac OS X On My Stolen Mac ?

I Know Find My Mac Information Saved In NVRAM and The Thief Can Erase It Without Booting The Whole MAC OS X By Some Shortcut Keys !

Is The Serial Number Of Machine Pair With The Find My Mac Function on Apple ? If yes , I Can Find It Even Fresh Clean Mac OS X Installation ; No ?!

Thank You All.