Installation of Ubuntu GRUB failed – server error

I'm in the process of setting up an Ubuntu server, but there were some issues … After setting up RAID 0, I tried to install Ubuntu Server 18.04.3 LTS, but this failed when I installed GRUB

I used the entire hard drive and set up LVM

The error message said something about / dev / mapper / … but I'm not sure what that means (I'm a freshman when it comes to Ubuntu)

Software installation – install Ruby 2.3.1 – Ubuntu 19.10 – Build failed

I am new to the Ubuntu and Ruby installation and the Linux installation in general.

I get the following issue when I try to install Ruby 2.3.1 via rbenv. Any idea why that could be? Many thanks.

prem@chinz:~$ rbenv install 2.3.1
Downloading ruby-2.3.1.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.bz2
Installing ruby-2.3.1...

BUILD FAILED (Ubuntu 19.10 using ruby-build 20191124-2-g77e949a)

Inspect or clean up the working tree at /tmp/ruby-build.20191205111801.21317.gjqU1A
Results logged to /tmp/ruby-build.20191205111801.21317.log

Last 10 log lines:
make(1): *** (exts.mk:208: ext/openssl/all) Error 2
make(1): *** Waiting for unfinished jobs....
linking shared-object objspace.so
make(2): Leaving directory '/tmp/ruby-build.20191205111801.21317.gjqU1A/ruby-2.3.1/ext/objspace'
linking shared-object date_core.so
make(2): Leaving directory '/tmp/ruby-build.20191205111801.21317.gjqU1A/ruby-2.3.1/ext/date'
linking shared-object nkf.so
make(2): Leaving directory '/tmp/ruby-build.20191205111801.21317.gjqU1A/ruby-2.3.1/ext/nkf'
make(1): Leaving directory '/tmp/ruby-build.20191205111801.21317.gjqU1A/ruby-2.3.1'
make: *** (uncommon.mk:203: build-ext) Error 2

Visual Studio code failed to install error message when I try an extension installation

When I try to install an extension, I get the error message "Installation failed" with a manual download button. I tried to install manually and it works. Why do I see this error during the installation via the extension menu?

I've also tried disabling and automatically protecting the Norton Security firewall, but the problem persists.

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Migration – How can I upgrade to Drupal 8 with a clean installation of 7?

I currently have a Drupal 7 site where I want to install Drupal 8 but do a clean install. This means erasing everything and starting with a new Drupal 8 instance. I've seen many articles on how to upgrade to migrating content types, fields, code, and other parts. However, I only want to upgrade to Drupal 8 without migration.

How can I upgrade to Drupal 8 without migration for a clean instance?

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8 – Adding a field to a bundleless entity during installation does not work

I have several fields that I want to attach to a custom entity during installation. I'm trying to follow the suggestions here to append fields to my custom entity (which by the way contains no bundles). I know that the instructions apply to content types, but I try to apply the information they contain to custom entities.

I am trying to do this by having some field configuration files in the config / install directory of my module. When I install the module, the fields are created but not attached to the custom entity. When I create and save an instance of my custom entity and then try to see the fields associated with my custom entity, use one ksm() print displays only the base fields defined in my entity. I'm trying to add these other fields through configuration files instead of hard-coding them through the base field definitions, as these extra fields should be configurable, and accordingly, the base field definitions should only be used to define unconfigurable fields. The link is about adding configurable fields over some hooks, but I would prefer to do this via this configuration solution that I'm trying to do. It seems like it should be possible …

So my question is this: is the way I do it possible for a bunchless business and I just miss something? Or do I just have to declare all my fields in the base field definitions? Here is the relevant code:

QuestionnaireResult.php

notify('What?!?');

  }

  /**
   * Meant for declaring non-configurable fields only.
   */
  public static function baseFieldDefinitions(EntityTypeInterface 
    $entity_type) {

    // Standard field, used as unique if primary index.
    $fields('id') = BaseFieldDefinition::create('integer')
      ->setLabel(t('ID'))
      ->setDescription(t('The ID of the Questionnaire Result entity.'))
      ->setReadOnly(TRUE);

    // Standard field, unique outside of the scope of the current project.
    $fields('uuid') = BaseFieldDefinition::create('uuid')
      ->setLabel(t('UUID'))
      ->setDescription(t('The UUID of the Questionnaire Result entity.'))
      ->setReadOnly(TRUE);

    return $fields;
  }

}

field.field.questionnaire_result.default.field_q_quiz_result_passed.yml

langcode: en
status: true
dependencies:
  config:
    - field.storage.questionnaire_result.field_q_quiz_result_passed
id: questionnaire_result.default.field_q_quiz_result_passed
field_name: field_q_quiz_result_passed
entity_type: questionnaire_result
bundle: default
label: Passed
description: 'Boolean value for whether the user passed the quiz on this attempt or not.'
required: false
translatable: false
default_value:
  -
    value: 0
default_value_callback: ''
settings:
  on_label: 'True'
  off_label: 'False'
field_type: boolean

field.storage.questionnaire_result.field_q_quiz_result_passed.yml

langcode: en
status: true
dependencies:
  module:
    - questionnaire
id: questionnaire_result.field_q_quiz_result_passed
field_name: field_q_quiz_result_passed
entity_type: questionnaire_result
type: boolean
settings: {  }
module: core
locked: false
cardinality: 1
translatable: true
indexes: {  }
persist_with_no_fields: false
custom_storage: false