How to troubleshoot and install drupal8 in LAMP on Ubuntu?

Question

linux

- Installed Ubuntu 18.04.3 LTS - Installed
LAMP:
1) first installed apache2
2) then installed mySQL database
3) then installed php 7.3 and a few additional packages
- Downloaded Drupal8 c from the official site.
-I configured access rights in the terminal so that I could create files through the terminal and folders in the var/www/html
directory -Copied the folder with drupal8 to the var/www/html directory -I
registered the path in the browser and the installation window appeared, but then I got errors:

Requirements problem
Errors found

File system
Writable (public download method)
The directory sites/default/files does not exist. An automated attempt to create this directory failed, possibly due to a permissions problem. To proceed with the installation, either create the directory and modify its permissions manually or ensure that the installer has the permissions to create it automatically. For more information, see INSTALL.txt or the online handbook.

Settings file
The Settings file does not exist.
The Drupal installer requires that you create a ./sites/default/settings.php as part of the installation process. Copy the ./sites/default/default.settings.php file to ./sites/default/settings.php. More details about installing Drupal are available in INSTALL.txt.

I think the errors are related to the fact that you need to somehow give access rights to the Drupal folder. But I don't know what to write in the terminal. Tell me what to write in the terminal.

If the problem is elsewhere, please indicate the problems and how to fix them.

Answer 1

The directory sites/default/files does not exist. An automated attempt to create this directory failed, possibly due to a permissions problem. To proceed with the installation, either create the directory and modify its permissions manually or ensure that the installer has the permissions to create it automatically. For more information, see INSTALL.txt or the online handbook.

The sites/default/files directory does not exist. An attempt to automatically create a directory failed, probably due to a permissions issue. To proceed with the installation, create a directory and modify the permissions manually, or grant permissions to the installer to create the folder automatically. For more information, open the INSTALL.txt file or the online handbook.

Settings file
The Settings file does not exist.

Settings file not found.

The Drupal installer requires that you create a ./sites/default/settings.php as part of the installation process. Copy the ./sites/default/default.settings.php file to ./sites/default/settings.php.

The Drupal installer needs a ./sites/default/settings.php file as part of the installation process
Copy the ./sites/default/default.settings.php file to ./sites/default/settings.php.

More details about installing Drupal are available in INSTALL.txt.

More details about Drupal installation are available in the INSTALL.txt file