The Debian GNU/Linux project has released an updated version of its stable Linux distribution Debian 10 (“buster”). You must upgrade to get corrections for security problem as this version made a few adjustments for the severe issue found in Debian version 10.8. Debian is a Unix-like (Linux distro) operating system and a distribution of Free Software. It is mainly maintained and updated through the work of many users who volunteer their time and effort. The Debian Project was first announced in 1993 by Ian Murdock.
More about Debian Linux 10.9 released
From the release note:
The Debian project pleased to announce the second update of its stable distribution Debian 10 (codename “buster”). This point release mainly adds corrections for security issues, along with a few adjustments for serious problems. Security advisories have already been published separately and are referenced where available.
Please note that the point release does not constitute a new version of Debian 10 but only updates some of the packages included. There is no need to throw away old “buster” media. After installation, packages can be upgraded to the current versions using an up-to-date Debian mirror.
Those who frequently install updates from security.debian.org won’t have to update many packages, and most such updates are included in the point release.
New installation images will be available soon at the regular locations.
How to upgrade Debian 10 from version 10.8 to 10.9
You must make a backup of your Linux system before you do this. Any upgrade poses application and data loss risk. Therefore keep verified backups.
The procedure is as follows. First, note down the current version:
$ lsb_release -a
$ cat /etc/debian_version
$ uname -mrs
Note down the outputs for verification. For instance:
No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 10 (buster) Release: 10 Codename: buster
Linux 4.19.0-14-amd64 x86_64
Upgrade the Debian Linux system to 10.9 from 10.8
Get:1 http://security.debian.org/debian-security buster/updates InRelease [65.4 kB] Get:2 http://deb.debian.org/debian buster-backports InRelease [46.7 kB] Get:3 http://cdn-aws.deb.debian.org/debian buster InRelease [121 kB] Get:4 http://cdn-aws.deb.debian.org/debian buster-updates InRelease [51.9 kB] Get:5 http://security.debian.org/debian-security buster/updates/main amd64 Packages [269 kB] Get:6 http://security.debian.org/debian-security buster/updates/main Translation-en [143 kB] Get:7 http://cdn-aws.deb.debian.org/debian buster/main amd64 Packages [7,907 kB] Get:8 http://cdn-aws.deb.debian.org/debian buster/main Translation-en [5,969 kB] Fetched 14.6 MB in 3s (4,436 kB/s) Reading package lists... Done N: Repository 'http://cdn-aws.deb.debian.org/debian buster InRelease' changed its 'Version' value from '10.8' to '10.9'
Please note the version number changed in last line. Next, apply updates, run:
$ sudo apt-get dist-upgrade
$ sudo apt dist-upgrade
Reboot Debian Linux box
If /var/run/reboot-required found it, reboot the box:
[ -f /var/run/reboot-required ] && echo "System reboot needed"
See “how to find out if my Ubuntu/Debian Linux server needs a reboot” for more info. Hence, reboot the Linux system, type:
$ sudo shutdown -r now
The installer has been updated to include the fixes incorporated into stable by the point release. You can download updated ISO for full installation too. This stable update added important package corrections and security enhancements to the system. Happy upgrades!
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