[SOLVED] Backport kernel being held back on Buster

So, it's buster-backports. Then

sudo apt -t buster-backports install linux-image-amd64

Originally Posted by shruggy So, it's buster-backports. Then sudo apt -t buster-backports install linux-image-amd64

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  aptitude-common libcwidget3v5
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  linux-image-5.6.0-0.bpo.2-amd64 wireless-regdb
Suggested packages:
  linux-doc-5.6 debian-kernel-handbook
The following NEW packages will be installed:
  linux-image-5.6.0-0.bpo.2-amd64
The following packages will be upgraded:
  linux-image-amd64 wireless-regdb
2 upgraded, 1 newly installed, 0 to remove and 146 not upgraded.
Need to get 50.4 MB of archives.
After this operation, 283 MB of additional disk space will be used.

Is it safe? I hope my wireless doesn't get broken. 😟

Originally Posted by shruggy Then try sudo apt -t buster-backports upgrade

No to get the specific package from the repository.

sudo apt -t buster-backports install linux-image-amd64

Perhaps the install needs to be before the -t part. And the output of the apt-cache policy linux-image-amd64 would be nice to see.

Originally Posted by linustalman Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: aptitude-common libcwidget3v5 Use 'sudo apt autoremove' to remove them. The following additional packages will be installed: linux-image-5.6.0-0.bpo.2-amd64 wireless-regdb Suggested packages: linux-doc-5.6 debian-kernel-handbook The following NEW packages will be installed: linux-image-5.6.0-0.bpo.2-amd64 The following packages will be upgraded: linux-image-amd64 wireless-regdb 2 upgraded, 1 newly installed, 0 to remove and 146 not upgraded. Need to get 50.4 MB of archives. After this operation, 283 MB of additional disk space will be used. Is it safe? I hope my wireless doesn't get broken. 😟

Appears to be a package of information about the setting to be used with drivers.

@haswell:~$ apt show wireless-regdb
Package: wireless-regdb
Version: 2016.06.10-1
Priority: optional
Section: net
Maintainer: Ben Hutchings <ben@decadent.org.uk>
Installed-Size: 22.5 kB
Suggests: crda
Homepage: https://wireless.wiki.kernel.org/en/developers/regulatory/wireless-regdb
Tag: admin::hardware, role::app-data
Download-Size: 8,064 B
APT-Sources: http://ftp.de.debian.org/debian buster/main amd64 Packages
Description: wireless regulatory database
 This package contains the wireless regulatory database used by the Central
 Regulatory Database Agent (CRDA) to configure wireless devices to operate
 within the radio spectrum allowed in the local jurisdiction.
 .
 This regulatory information is provided with no warranty either expressed or
 implied. Only Linux drivers which use cfg80211 framework can make use of the
 regulatory database and CRDA.

N: There is 1 additional record. Please use the '-a' switch to see it

Should be safe enough to install I would think.

Originally Posted by HappyTux No to get the specific package from the repository. sudo apt -t buster-backports install linux-image-amd64 Perhaps the install needs to be before the -t part. And the output of the apt-cache policy linux-image-amd64 would be nice to see.

Output of apt-cache policy linux-image-amd64:

linux-image-amd64:
  Installed: 5.4.19-1~bpo10+1
  Candidate: 5.6.14-2~bpo10+1
  Version table:
     5.6.14-2~bpo10+1 100
        100 http://ftp.debian.org/debian buster-backports/main amd64 Packages
 *** 5.4.19-1~bpo10+1 100
        100 /var/lib/dpkg/status
     4.19+105+deb10u5 500
        500 http://ftp.ie.debian.org/debian buster/main amd64 Packages

Originally Posted by shruggy So, it's buster-backports. Then sudo apt -t buster-backports install linux-image-amd64

It worked!

My current kernel after a reboot is: 5.6.0-0.bpo.2-amd64

Cheers, shruggy!

Originally Posted by linustalman It worked! My current kernel after a reboot is: 5.6.0-0.bpo.2-amd64 Cheers, shruggy!

Perfect, nice to hear it worked for you, just remember it in the future. When an app will not install from the backports you will most likely need the -t option to specify where it will be installed from. And apparently you have the updated grub packages installed as it rebooted properly for you too.