Take the 2-minute tour ×
Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems.. It's 100% free, no registration required.

When doing an apt-get upgrade I sometimes get a message saying "The following packages have been kept back". For example:

$ sudo apt-get upgrade                                                                                                
Reading package lists... Done                                                                                                          
Building dependency tree                                                                                                               
Reading state information... Done                                                                                                      
The following packages have been kept back:                                                                                            
  linux-headers-server linux-image-server linux-server                                                                                 
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.

What does this mean exactly? Obviously the packages have been held back and not installed, but why?

The follow-on question would be: how does one upgrade these kept back packages?

share|improve this question

2 Answers 2

up vote 9 down vote accepted

Basic report is that "apt-get upgrade" will not upgrade packages for-which the package-manager would like to delete and reinstall the package. This happens in security patches a lot because, often, it was actually libraries precursor to the final distributable compilation which were patched. The "go ahead and delete things," functionality lives in "apt-get dist-upgrade" but-be-ware, be sure to run "apt-get update" first just in case the upstream guys figured something out since you last tried. Sometimes they miss things and fix them that fast.

share|improve this answer

Just do

sudo apt-get install linux-headers-server linux-image-server linux-server

and you will be fine.

Doing "apt-get dist-upgrade" will upgrade your OS to a new version which is often what people do not want.

p.s. - I know that thread is somewhat old, but this question is asked a lot, so I guess it will help to many.

share|improve this answer
3  
This is incorrect. apt-get dist-upgrade will NOT upgrade your OS to a new version. man apt-get to see the differences. –  BT643 Oct 16 at 9:15
    
@BT643 (and those who upvoted the comment) please downvote wrong answers instead of just leaving a comment. Especially blatantly wrong answers like this one that perpetuate a common misconception. We depend on votes to bring good content to the front but also to push wrong content down. –  terdon Nov 5 at 0:58
    
@terdon I tried but don't have enough rep :) (need 125 to downvote). –  BT643 Nov 5 at 10:00

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.