root@delan:~# sudo apt-get -o Debug::pkgProblemResolver=true dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Starting Starting 2 Investigating (0) libc6-dev [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel ) Broken libc6-dev:amd64 Depends on libc6 [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libs ) (= 2.12.1-0ubuntu4) Considering libc6:amd64 11035 as a solution to libc6-dev:amd64 10025 Re-Instated libc6:amd64 Broken libc6-dev:amd64 Depends on libc-dev-bin [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel ) (= 2.12.1-0ubuntu4) Considering libc-dev-bin:amd64 11 as a solution to libc6-dev:amd64 10025 Added libc-dev-bin:amd64 to the remove list Fixing libc6-dev:amd64 via keep of libc-dev-bin:amd64 Try to Re-Instate (0) libc-dev-bin:amd64 Re-Instated libc-dev-bin:amd64 (1 vs 1) Investigating (1) libc6-dev [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel ) Broken libc6-dev:amd64 Depends on libc6 [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libs ) (= 2.12.1-0ubuntu4) Considering libc6:amd64 10025 as a solution to libc6-dev:amd64 10025 Broken libc6-dev:amd64 Depends on libc-dev-bin [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel ) (= 2.12.1-0ubuntu4) Considering libc-dev-bin:amd64 11 as a solution to libc6-dev:amd64 10025 Added libc-dev-bin:amd64 to the remove list Fixing libc6-dev:amd64 via keep of libc-dev-bin:amd64 Investigating (2) libc6-dev [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel ) Broken libc6-dev:amd64 Depends on libc6 [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libs ) (= 2.12.1-0ubuntu4) Considering libc6:amd64 10025 as a solution to libc6-dev:amd64 10025 Done Failed The following packages have unmet dependencies: libc6-dev : Depends: libc6 (= 2.12.1-0ubuntu4) but 2.12.1-0ubuntu6 is to be installed E: Unable to correct problems, you have held broken packages.
root@delan:~# sudo apt-get -o Debug:: pkgProblemResol ver=true dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Starting
Starting 2
Investigating (0) libc6-dev [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel )
Broken libc6-dev:amd64 Depends on libc6 [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libs ) (= 2.12.1-0ubuntu4)
Considering libc6:amd64 11035 as a solution to libc6-dev:amd64 10025
Re-Instated libc6:amd64
Broken libc6-dev:amd64 Depends on libc-dev-bin [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel ) (= 2.12.1-0ubuntu4)
Considering libc-dev-bin:amd64 11 as a solution to libc6-dev:amd64 10025
Added libc-dev-bin:amd64 to the remove list
Fixing libc6-dev:amd64 via keep of libc-dev-bin:amd64
Try to Re-Instate (0) libc-dev-bin:amd64
Re-Instated libc-dev-bin:amd64 (1 vs 1)
Investigating (1) libc6-dev [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel )
Broken libc6-dev:amd64 Depends on libc6 [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libs ) (= 2.12.1-0ubuntu4)
Considering libc6:amd64 10025 as a solution to libc6-dev:amd64 10025
Broken libc6-dev:amd64 Depends on libc-dev-bin [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel ) (= 2.12.1-0ubuntu4)
Considering libc-dev-bin:amd64 11 as a solution to libc6-dev:amd64 10025
Added libc-dev-bin:amd64 to the remove list
Fixing libc6-dev:amd64 via keep of libc-dev-bin:amd64
Investigating (2) libc6-dev [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libdevel )
Broken libc6-dev:amd64 Depends on libc6 [ amd64 ] < 2.12.1-0ubuntu4 -> 2.12.1-0ubuntu6 > ( libs ) (= 2.12.1-0ubuntu4)
Considering libc6:amd64 10025 as a solution to libc6-dev:amd64 10025
Done
Failed
The following packages have unmet dependencies:
libc6-dev : Depends: libc6 (= 2.12.1-0ubuntu4) but 2.12.1-0ubuntu6 is to be installed
E: Unable to correct problems, you have held broken packages.