==== VirtualBox running CentOS 8 Notes ====

__9 December 2020__
  * Updated to CentOS Linux release 8.3.2011
  * Booting into new kernel kept failing
    * complained /boot ext4 filesystem was unknown
  * Booted into previous kernel OK
  * Did "rpm -qa |grep kernel | sort" and looked for all the latest versions

  kernel-4.18.0-240.1.1.el8_3.x86_64
  kernel-core-4.18.0-240.1.1.el8_3.x86_64
  kernel-devel-4.18.0-240.1.1.el8_3.x86_64
  kernel-headers-4.18.0-240.1.1.el8_3.x86_64
  kernel-modules-4.18.0-240.1.1.el8_3.x86_64
  kernel-modules-extra-4.18.0-240.1.1.el8_3.x86_64
  kernel-tools-4.18.0-240.1.1.el8_3.x86_64
  kernel-tools-libs-4.18.0-240.1.1.el8_3.x86_64
  
Then reinstalled all of them using:

  dnf reinstall kernel-4.18.0-240.1.1.el8_3.x86_64 kernel-core-4.18.0-240.1.1.el8_3.x86_64 kernel-devel-4.18.0-240.1.1.el8_3.x86_64 kernel-headers-4.18.0-240.1.1.el8_3.x86_64 kernel-modules-4.18.0-240.1.1.el8_3.x86_64 kernel-modules-extra-4.18.0-240.1.1.el8_3.x86_64 kernel-tools-4.18.0-240.1.1.el8_3.x86_64 kernel-tools-libs-4.18.0-240.1.1.el8_3.x86_64 

Rebooted into new kernel, working OK.


__15 October 2020__
  * For centos8-vtatdb2-l, selinux seems to have gotten messed up
    * Tried a new VM by cloning centos8-minimal and immediately disabling selinux, rebooting
  * mod_security was giving httpd errors and permission denied
    * Try disabling this and then testing httpd stuff

__29 September 2020__
  * Create new VM and install CentOS 8 minimal 
    * download iso from https://www.centos.org/download/
    * modify hostname
    * modify disk partitions if needed
    * For 'Display' settings, do not check "Enable 3D Acceleration" as it may prevent MATE environment from appearing
  * Boot up VM and login
  * Use ifconfig to determine its IP address
  * Open a terminal window and ssh into it
  * set up local account .bashrc and ssh stuff; same for root
  * su to root
  * mkdir /root/bin
  * Copy contents of [[yum_installer_bash_script_centos8|dnf installer bash script (CentOS 8)]] to a .bash script
  * Run script and pipe output to a log file
  * When complete, check for errors and make adjustments
  * Reboot

__Other modifications__
  * Try different theme, like "TraditionalOK"
  * Disable screensaver
  * Install MATE using https://copr.fedorainfracloud.org/coprs/stenstorp/MATE/
    * Other discussion at https://centosfaq.org/centos/centos-8-mate/
  * Download password gorilla from https://gorilla.dp100.com/downloads/ 
  * Install PHP 7.4 following https://www.tecmint.com/install-php-on-centos-8/
  * Install perl-HTML-TableExtract.noarch (saved on host linux in /root/downloads_centos8)
    * needed for AT&T broadband gateway usage script
    * used [[http://rpmfind.net/linux/dag/redhat/el6/en/x86_64/dag/RPMS/perl-HTML-TableExtract-2.10-1.el6.rf.noarch.rpm|perl-HTML-TableExtract-2.11-4.el7.noarch.rpm]] and tested OK
  * Install perl-Math-Round (saved on host linux in /root/downloads_centos8)
    * needed for AT&T broadband gateway usage script
    * used [[http://rpmfind.net/linux/dag/redhat/el6/en/x86_64/dag/RPMS/perl-Math-Round-0.06-1.el6.rf.x86_64.rpm|perl-Math-Round-0.06-1.el6.rf.x86_64.rpm]] and tested OK
  * Install perl-List-Compare (saved on host linux in /root/downloads_centos8)
    * not sure where it's needed (if at all?)
    * used [[http://rpmfind.net/linux/dag/redhat/el6/en/x86_64/dag/RPMS/perl-List-Compare-0.37-1.el6.rf.noarch.rpm|perl-List-Compare-0.37-1.el6.rf.noarch.rpm]] but not tested
  * If needed:
    * install [[https://download.nice-dcv.com/|DCV Viewer]]
    * dnf install pidgin
    * dnf install x2goclient


__TO DO__

  * Install X2Go

__IGNORE LIST__
  * Look at GNOME Shell Extensions
    * Dash to Panel
    * [[https://www.dedoimedo.com/computers/centos-8-gnome-extensions.html|Installing extensions]]
  * Figure out NUX repo issues
  * Customize GNOME Classic with the links:
    * [[https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/using_the_desktop_environment_in_rhel_8/index#enabling-window-overview-in-gnome-classic_gnome-environments|tips 1]]
    * [[https://www.zdnet.com/google-amp/article/how-to-customise-your-linux-desktop-gnome-3/|tips 2]]
    * [[https://devconnected.com/how-to-install-and-configure-centos-8-with-gnome/|tips 3]]
    * Try to replicate MATE look & feel in GNOME classic
      * use gnome-tweaks to make adjustments
  * System language seems to be British (Colours)