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ubuntu_notes [2020/11/30 12:59] juckinsubuntu_notes [2021/02/21 11:09] (current) juckins
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-==== Ubuntu Notes ====+==== VirtualBox running Ubuntu 14 Notes ====
  
-__20 Jul 2020__ 
- 
-Updated VirtualBox to 6.1.12 and Ubuntu 18 would not login after MATE authentication screen (just got black screen).  Went into /opt/VBoxGuestAdditions-6.1.8 and uninstalled the Guest Additions.  Rebooted, logged in correctly.  Then installed latest version of GuestAdditions.  Rebooted again, logged in and all worked correctly. 
- 
-If restarting makes the screen go black again, use CTRL-F in VirtualBox 2 times, and that restores it. 
- 
-__Other Notes__ 
- 
-[[https://linuxize.com/post/how-to-install-teamviewer-on-ubuntu-18-04/|TeamViewer installation]] 
- 
-[[https://linuxconfig.org/how-to-install-lamp-ubuntu-18-04-bionic-beaver-linux-apache-mysql-php|LAMP on Ubuntu 18.04]] 
- 
-[[http://howtoubuntu.org/how-to-install-lamp-on-ubuntu|General LAMP install]] 
- 
-[[https://help.ubuntu.com/stable/ubuntu-help/net-firewall-on-off.html|Firewall settings]] 
- 
-[[https://askubuntu.com/questions/44418/how-to-enable-root-login|Enabling root]] (or use sudo -i) 
- 
-Release info:   
-<code> 
-lsb_release -a 
-</code> 
- 
-View installed kernels: 
-<code> 
-# dpkg --list | grep linux-image 
-</code> 
- 
-Remove old kernels: 
- 
-  * https://code.launchpad.net/~jarnos/linux-purge/+git/linux-purge 
-    * # linux-purge -s 
-    * # linux-purge 
-    * # linux-purge -m 
-  * https://www.pontikis.net/blog/remove-old-kernels-debian-ubuntu (deprecated) 
- 
-[[https://packages.ubuntu.com/search?keywords=openconnect|Searching for Ubuntu Packages and versions]] 
- 
-View installed packages: 
-<code> 
-# apt list --installed 
-# dpkg --get-selections | grep -v deinstall |grep unifi 
-</code> 
- 
-Remove installed package: 
-<code> 
-# dpkg -r package_name 
-</code> 
- 
- 
----- 
- 
-Ubuntu 18.04 LTS 
-  * After initial login, change preferences in terminal and remove undesired favorites 
-  * [[https://websiteforstudents.com/how-to-install-ubuntu-16-04-17-10-18-04-guest-machines-on-virtualbox/|VirtualBox installation notes]] 
-  * Allow Virtualbox guest additions: 
-<code> 
-sudo apt update 
-sudo apt install build-essential gcc make perl 
-sudo apt install vim 
-sudo apt install gnome-software 
-sudo apt install openssh-server 
-reboot 
-</code> 
- 
-  * [[https://linuxconfig.org/how-to-install-mate-desktop-on-ubuntu-18-04-bionic-beaver-linux|Install MATE Desktop link #1]] 
-  * [[https://www.hiroom2.com/2018/05/06/ubuntu-1804-mate-en/|Install MATE Desktop link #2]] 
-  * [[Install UniFi on Ubuntu|Install UniFi on Ubuntu]] 
- 
-__12 Sep 2019__ 
- 
-[[https://hostadvice.com/how-to/configure-apache-with-tls-ssl-certificate-on-ubuntu-18/|Configure Apache HTTPS on Ubuntu 18]] 
- 
-__26 Jan 2019__ 
- 
-Logging into Desktop GUI only gives a blank screen: 
-  * Tried updating VirtualBox Guest Additions to v5.2-5.2.24 but no change 
-  * Tried updating packages using commands below 
- 
-Use these commands to update packages, as it allows interactive use to answer questions: 
-<code> 
-sudo apt update 
-sudo apt upgrade 
-sudo apt --with-new-pkgs upgrade 
-</code> 
- 
-Very slow using Ubuntu GUI now: 
-  * Enable 3D acceleration in VirtualBox settings 
-  * Allocate 128MB video RAM 
-  * Restart and test 
-  * Also see these links: 
-    * [[https://thomas.vanhoutte.be/miniblog/guide-speed-up-ubuntu-virtualbox/|Speeding up Ubuntu]] 
-    * [[https://www.linuxbabe.com/virtualbox/speed-up-ubuntu-virtualbox]] 
- 
-Check that 3D acceleration is supported: 
- 
-  sudo apt install nux-tools 
-  /usr/lib/nux/unity_support_test -p 
- 
- 
-Installing mysql: 
- 
-<code> 
-sudo apt install mysql-client-core-5.7    
-sudo apt install mysql-server 
-sudo /usr/bin/mysql_secure_installation 
-</code> 
- 
-Then login like this: 
-  sudo mysql -u root -p 
-   
-Login with a non-root user like this: 
-  mysql -u username -p 
-   
-See notes at [[https://www.digitalocean.com/community/tutorials/how-to-install-mysql-on-ubuntu-18-04]] for setting up a new user 
- 
-Other SQL commands/testing: 
- 
- 
-  CREATE USER 'username'@'localhost' IDENTIFIED BY 'password'; 
-  GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' IDENTIFIED BY 'password'; 
-  CREATE DATABASE dbname; 
-  SET PASSWORD FOR 'username'@'localhost' = PASSWORD('password'); 
-   
-To allow logins to mysql via adminer: 
- 
-https://serverfault.com/questions/1001274/adminer-denied-acces-for-user 
- 
-  # su - 
-  # mysql -u root -p  
-  > ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'YOUR_PASSWORD'; 
-  # systemctl restart mysql 
-  # systemctl restart apache2.service 
-   
-To upgrade MySQL v5.7 to 8.x follow [[https://www.javacodemonk.com/upgrade-mysql-from-5-7-to-8-on-ubuntu-18-04-bd9b5e46|this link]] 
- 
-To fix this locale error upon login: 
- 
-<code> 
--bash: warning: setlocale: LC_ALL: cannot change locale (en_US) 
-</code> 
- 
-run the following: 
-   
-  sudo locale-gen en_US 
-  locale -a 
-   
-and confirm you see en_US now.  See [[https://ubuntuforums.org/showthread.php?t=1675347&page=2]] for more info. 
- 
----- 
- 
-Ubuntu 14.04.5 LTS Notes 
   * sudo apt-get install linux-headers-generic   * sudo apt-get install linux-headers-generic
   * sudo apt-get install apache2   * sudo apt-get install apache2
ubuntu_notes.1606759192.txt.gz · Last modified: 2020/11/30 12:59 by juckins