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How to set up automatic updates on Ubuntu Server 20.04, 22.04 or 24.04
Last updated on May 27, 2024
This guide explains how to configure automatic updates in Ubuntu Server 20.04 “Focal Fossa”, Ubuntu Server 22.04 “Jammy Jellyfish” or Ubuntu Server 24.04 “Noble Numbat”.
Step 1: package installation
Install the unattended-upgrades package:sudo apt install unattended-upgrades
This package may already be installed on your server.
Step 2: configure automatic updates
Edit the configuration file (here with nano – replace with any other text editor):sudo nano /etc/apt/apt.conf.d/50unattended-upgrades
The beginning of the configuration file should look like this:
Anything after a double slash “//” is a comment and has no effect. To “enable” a line, remove the double slash at the beginning of the line (replace with nothing or with spaces to keep alignment).
The most important: uncomment the “updates” line by deleting the two slashes at the beginning of it:"${distro_id}:${distro_codename}-updates";
Recommended: remove unused kernel packages and dependencies and make sure the system automatically reboots if needed by uncommenting and adapting the following lines:Unattended-Upgrade::Remove-Unused-Kernel-Packages "true"Unattended-Upgrade::Remove-New-Unused-Dependencies "true";Unattended-Upgrade::Remove-Unused-Dependencies "true";
Unattended-Upgrade::Automatic-Reboot "true";
Unattended-Upgrade::Automatic-Reboot-Time "02:38";
To save your changes in nano, use Ctrl + O followed by Enter. To quit, use Ctrl + X.
How to get email notification after automatic updates
Uncomment and adapt the following lines to ensure you’ll be notified if an error happens:
Unattended-Upgrade::Mail "user@example.com";Unattended-Upgrade::MailReport "only-on-error";
Please note: your server needs to be able to send emails – which is mostly not the case by default! If you didn’t install and configure Postfix on your server, email notifications will NOT work.
Step 3: enable automatic updates
Enable automatic updates and set up update intervals by running:sudo nano /etc/apt/apt.conf.d/20auto-upgrades
In Ubuntu 22.04 and 24.04, the file has only the following two lines by default:
APT::Periodic::Update-Package-Lists "1";APT::Periodic::Unattended-Upgrade "1";
Insert the following lines at the end of the file:
APT::Periodic::Download-Upgradeable-Packages "1";APT::Periodic::AutocleanInterval "7";
The time interval is specified in days, feel free to change the values. In total, you should have all four lines. Save changes and exit.
Step 4: check if it works
You can see if the auto-upgrades work by launching a dry run:sudo unattended-upgrades --dry-run --debug
The dry-run may output something like this:
Depending on your server configuration, the output may look less clean, which is OK:
Another way to check if automatic updates work is waiting a few days and checking the unattended upgrades logs:cat /var/log/unattended-upgrades/unattended-upgrades.log
Done! Ubuntu Server 20.04 / 22.04 / 24.04 should now update itself once a day.
By Johannes Eva, April 2018 – May 2024
5 thoughts on “How to edit image metadata on Linux using a graphical user interface”
fotoxx lets you change Metadata info, and choose your current image’s Caption and Comment as well as view images in directories with filename and some other Metadata as labels. You can set up trees of tags with Categories and put those in at the same time, to use for sorting the images into “album” groups for moving or copying out. The code is gtk and perl with many filetype handlers. Your labeling is stored in plain text files, easy to copy out into documents, transfer, edit, etc.
You should give some additional details, some tools write directly into the image file, others don’t. For example darktable does not change the original image, it writes into a sidecar file (.XMP).
You might also consider http://fastphototagger.sourceforge.net/, java based
I don’t know whether you actually tested Gthumb or not, but your statement that it is only capable of reading meta tags, couldn’t be further from the truth. And it seems to do a fairly good while it is at it!
All one have do is to press the ‘T’ key – either under the Thumbnail view or the “larger” view – and voilá: it reads any existing tags already embedded in the selected file. Next, you have to keep typing any new ones (just don’t forget to confirm, via the pull down list, to actually create any new tags) and you’re done.
I would also suggest that MaPiVi is an excellent program which needs to be on this list. It’s capable of editing and bulk-editing many kinds of image metadata, including IPTC Keywords (which is why I got it). It’s written in Perl/TK so it’s cross-platform. A somewhat old version of it is included in the Ubuntu Linux distribution.
One of the main drawbacks of MaPiVi is that it won’t handle the metadata in Nikon .NEF (raw) format files, which is pretty much the same as that in other formats such as JPEG.