Archive for the ‘ubuntu upgrades’ Category

Stop the postix server from the command line

August 2nd, 2015 No comments

After an ubuntu upgrade, I detected lots of activity going on postfix.

I did not want to disrupt other ongoing web activity so I decided to temporarily shut down the postfix server with the following command:

sudo postfix stop

From Xubuntu Precise to Raring (kernel upgrade only)

August 6th, 2014 No comments

I wanted to prevent some problems I found while installing the Linux TV software. I was advised to set up a newer kernel

Warning: these instructions are not meant for a production system. You can always go back to your distro’s original kernel but there is no guarantee.


Before upgrading, just make sure that your distro is up to date:

Update your repository information

sudo apt-get update

update to the the Raring Ringtail distro kernel and headers (3.8)

sudo apt-get install linux-image-generic-lts-raring
sudo apt-get install linux-headers-generic-lts-raring

and then reboot.

Grub will keep an option for you to log on to your original distro’s kernel

After rebooting, confirm that your kernel is 3.8 by running:

uname -a
Linux <your hostname> 3.8.0-44-generic #66~precise1-Ubuntu SMP Tue Jul 15 04:04:23 UTC 2014 i686 i686 i386 GNU/Linux


Bring your current Ubuntu up to date from the command line

May 6th, 2013 No comments

Updating your system to include the latest fixes for your current Ubuntu distribution can be done by using the ‘software updater’ application.  This is a graphical application that checks whether newer updates to all installed programs have been applied.

However, you can also update your Ubuntu system from the command line as follows

  • Confirm that you are plugged in to AC power
  • Confirm that the ‘Software Updater’ application is closed
  • Open a terminal window and run:
sudo apt-get update

followed by

sudo apt-get dist-upgrade

finally, make sure to reboot your system

sudo reboot