Lessons in CentOS
Again, the internet saved my VM.
If you move around a CentOS 6.x VM, your network MAC address can change. Here is how to fix it again.
How to set-up hotspot.
Firefox URL: http://detectportal.firefox.com/success.txt
Google Chrome URL: connectivitycheck.gstatic.com/generate_204
Internet Explorer URL:
Chomium URL: chrome.google.com
If your graphs are showing with ‘graph error’ and your disk is almost full, please follow the instructions below.
Add extra disk to your VM or to your machine and type following commands with root privileges.
# display disk name fdisk -l # create partition fdisk /dev/sdb # type n enter enter enter enter w enter # means new partition, default values accept, and write out changes # extend physical volume group vgs vgextend observium-vg /dev/sdb1 # extend size in volume group and resize file system lvextend -L +19G /dev/mapper/observium--vg-root resize2fs /dev/mapper/observium--vg-root # check everything is ok df -k # now regenerate graphs that were missing cd /opt/observium php discovery.php -h all php poller.php -h all
Above assumes you are adding a second disk of 20 GB. sdb and +19G might need to change if your configuration is different.
Seems netbeans cannot work with OpenJDK 10/11 and stops silently shortly after start.
uninstall 8.1 from software list and/or remove manual installation from /usr/local
Install OpenJDK 1.8
Download latest 8.2 from netbeans.org.
Install Netbeans 8.2 in current user (aka path /home/youruser). Also install Glassfish/Tomcat in current user. For some reason, installation in /usr/local does fail.
During installation, point your java jdk to /usr/lib/jvm/openjdk-1.8.
Please note that editing the /etc/netbeans.conf file as indicated by some sites is not resolving the issue.
CentOS minimal install can be stripped down to a more bare minimum.
Whether you are using CentOS for a build server or simply testing out a new configuration, you can quickly create a VM (virtual machine) that is under 1GB. You can do this without downloading any s…
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After updating from Linux Mint 18.3 to 19, wine stopped working. This is what was required to correct.
sudo all below commands if required
dpkg --add-architecture i386
apt-add-repository 'deb https://dl.winehq.org/wine-builds/ubuntu/ bionic main'
wget -nc https://dl.winehq.org/wine-builds/Release.key
apt-key add Release.key
Check if you do not have duplicate lines from an earlier install.
Then the final step.
apt-get install --install-recommends winehq-stable
Source: Ubuntu – WineHQ Wiki
Users can now register.
Hope this does not bring a lot of issues with spam.