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Running 20.04, the software updater shows several updates which are not selected to install by default, and which I cannot choose to install: clicking on them does nothing. Please see the image below. Several questions:

  • Why is this happening?
  • Did I do something wrong? (And if so, what?)
  • Is there something I should do now?

enter image description here

A few days later, I get this update:

enter image description here

In response to the first comment:

If the update requires root permission, then I am asked for the pasword after selecting to install it.

I did as you suggested, but can't see the odd entries; this is the result:

Hit:1 http://gb.archive.ubuntu.com/ubuntu focal InRelease Hit:2 http://archive.canonical.com/ubuntu focal InRelease
Hit:3 http://dl.google.com/linux/chrome/deb stable InRelease
Get:4 http://gb.archive.ubuntu.com/ubuntu focal-updates InRelease [111 kB] Get:5 http://security.ubuntu.com/ubuntu focal-security InRelease [107 kB] Get:6 http://security.ubuntu.com/ubuntu focal-security/main i386 Packages [61.7 kB] Get:7 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [160 kB] Get:8 http://security.ubuntu.com/ubuntu focal-security/main amd64 DEP-11 Metadata [24.3 kB] Get:9 http://security.ubuntu.com/ubuntu focal-security/main amd64 c-n-f Metadata [4,176 B] Get:10 http://security.ubuntu.com/ubuntu focal-security/universe amd64 DEP-11 Metadata [52.1 kB] Get:11 http://gb.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages [195 kB] Get:12 http://gb.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [325 kB] Get:13 http://gb.archive.ubuntu.com/ubuntu focal-updates/main amd64 DEP-11 Metadata [196 kB] Get:14 http://gb.archive.ubuntu.com/ubuntu focal-updates/main amd64 c-n-f Metadata [8,428 B] Get:15 http://gb.archive.ubuntu.com/ubuntu focal-updates/universe i386 Packages [84.6 kB] Get:16 http://gb.archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [155 kB] Get:17 http://gb.archive.ubuntu.com/ubuntu focal-updates/universe amd64 DEP-11 Metadata [184 kB] Get:18 http://gb.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 DEP-11 Metadata [2,468 B] Fetched 1,672 kB in 2s (888 kB/s)
Reading package lists... Done

2 Answers2

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I am certain you are not missing out on anything important but cannot say why you are unable to select those packages. Just an oddity of that gui it seems. If you go to Show Applications and search for Software & Updates then you may see more options under the tabs Ubuntu Software or Other Software or Updates that your system will either look for or ignore come update time.

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It is not an oddity of the GUI, as the problem remains after doing upgrades via the command line.

What I'm seeing appears to be what happens when this is the situation: The following packages have been kept back

There is an extended discussion, but in summary, it should resolve itself in time.