4

So I see running "apt-get update && apt-get -s upgrade" that my Ubuntu 14.04 system wants to update the "grub-pc" package.

It seems that it wants to go from the currently installed version 2.02~beta2-9ubuntu1.7 to version 2.02~beta2-9ubuntu1.12.

$ apt-cache policy grub-pc
grub-pc:
  Installed: 2.02~beta2-9ubuntu1.7
  Candidate: 2.02~beta2-9ubuntu1.12
  Version table:
     2.02~beta2-9ubuntu1.12 0
        500 http://es.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
 *** 2.02~beta2-9ubuntu1.7 0
        100 /var/lib/dpkg/status
     2.02~beta2-9ubuntu1.6 0
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
     2.02~beta2-9 0
        500 http://es.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

Updating the "grub-pc" makes me uneasy, because I have customized my "/etc/default/grub" file, and I will be asked questions, and I could choose the wrong answer, and my system could become unbootable.

So I'm currently considering doing "apt-mark hold grub-pc" prior to doing "apt-get update", just to be safe.

However, I am also wondering what does that updated version of grub-pc 2.02~beta2-9ubuntu1.12 bring? Perhaps it solves some security problem?

So my question is: how can I find out what's new in "grub-pc 2.02~beta2-9ubuntu1.12", prior to installing it?

Dalequedale
  • 53

2 Answers2

4

You can find changelogs by this command :

apt changelog grub-pc

This shows somethings like this that shows what is changed from prior versions:

grub2 (2.02~beta3-4ubuntu2) zesty; urgency=medium

  • debian/build-efi-images: provide a new grub EFI image which enforces that loaded kernels are signed for Secure Boot: build gsb$arch.efi; which is the same as grub$arch.efi minus the 'linux' module. Without fallback to 'linux' for unsigned loading, this makes it effectively enforce having a signed kernel. (LP: #1401532)

    -- Mathieu Trudel-Lapierre Thu, 30 Mar 2017 17:45:23 -0400

If it's not work, you can use this command :

aptitude changelog grub-pc

It has the same output with apt.

Ali Razmdideh
  • 5,868
4

In its most general sense, you can consult the changelog for the proposed new package - for example Package: grub-pc (2.02~beta2-9ubuntu1.12) on packages.ubuntu.com

If you want to automate the process (so that changelogs are presented at the time of upgrade), you can use apt-listchanges as explained in Seeing apt-get changelogs for to-be-upgraded packages

steeldriver
  • 142,475