Differences

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--- ubuntu_notes [2019/10/15 15:42] – juckins
+++ ubuntu_notes [2021/02/21 11:05] – juckins
@@ Line 1: / Line 1: @@
-==== 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]]
@@ Line 14: / Line 23: @@
 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:
@@ Line 34: / Line 58: @@
   * Allow Virtualbox guest additions:
 <code>
-sudo apt-get update
+sudo apt update
-sudo apt-get install build-essential gcc make perl
+sudo apt install build-essential gcc make perl
-sudo apt-get install vim
+sudo apt install vim
 sudo apt install gnome-software
-sudo apt-get install openssh-server
+sudo apt install openssh-server
 reboot
 </code>
@@ Line 60: / Line 84: @@
 sudo apt update
 sudo apt upgrade
-sudo apt-get --with-new-pkgs upgrade
+sudo apt --with-new-pkgs upgrade
 </code>
@@ Line 101: / Line 125: @@
   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: