Here is the error:

root@vm21575:~/sandbox/gitcloner# apt-get install g++ Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: g++ : Depends: g++-4.6 (>= 4.6.3-1~) but it is not going to be installed E: Unable to correct problems, you have held broken packages.

UPD

 root@vm21575:~# apt-cache policy g++ g++-4.6 g++: Installed: (none) Candidate: 4:4.6.3-1ubuntu5 Version table: 4:4.6.3-1ubuntu5 0 500 http://archive.ubuntu.com/ubuntu/ precise/main i386 Packages g++-4.6: Installed: (none) Candidate: 4.6.3-1ubuntu5 Version table: 4.6.3-1ubuntu5 0 500 http://archive.ubuntu.com/ubuntu/ precise/main i386 Packages root@vm21575:~# dpkg --get-selections | grep hold root@vm21575:~#

UPD

 root@vm21575:~# aptitude -f install No packages will be installed, upgraded, or removed. 0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B of archives. After unpacking 0 B will be used. root@vm21575:~# aptitude install g++ The following NEW packages will be installed: g++ g++-4.6{a} libc6-dev{ab} libstdc++6-4.6-dev{a} 0 packages upgraded, 4 newly installed, 0 to remove and 0 not upgraded. Need to get 13.5 MB of archives. After unpacking 44.1 MB will be used. The following packages have unmet dependencies: libc6-dev : Depends: libc6 (= 2.15-0ubuntu10.15) but 2.15-0ubuntu10+openvz0 is installed. Depends: libc-dev-bin (= 2.15-0ubuntu10.15) but it is not going to be installed. Depends: linux-libc-dev but it is not going to be installed. The following actions will resolve these dependencies: Keep the following packages at their current version: 1) g++ [Not Installed] 2) g++-4.6 [Not Installed] 3) libc6-dev [Not Installed] 4) libstdc++6-4.6-dev [Not Installed] Accept this solution? [Y/n/q/?] No packages will be installed, upgraded, or removed. 0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B of archives. After unpacking 0 B will be used.

UPD

 root@vm21575:~# apt-cache policy libc6-dev libc6-dev: Installed: (none) Candidate: 2.15-0ubuntu10.15 Version table: 2.15-0ubuntu10.15 0 500 http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages 500 http://security.ubuntu.com/ubuntu/ precise-security/main i386 Packages 2.15-0ubuntu10+openvz0 0 500 http://ppa.launchpad.net/izx/ovz-libc/ubuntu/ precise/main i386 Packages 2.15-0ubuntu10 0 500 http://archive.ubuntu.com/ubuntu/ precise/main i386 Packages root@vm21575:~# aptitude install g++ The following NEW packages will be installed: g++ g++-4.6{a} libc6-dev{ab} libstdc++6-4.6-dev{a} 0 packages upgraded, 4 newly installed, 0 to remove and 0 not upgraded. Need to get 13.5 MB of archives. After unpacking 44.1 MB will be used. The following packages have unmet dependencies: libc6-dev : Depends: libc6 (= 2.15-0ubuntu10.15) but 2.15-0ubuntu10+openvz0 is installed. Depends: libc-dev-bin (= 2.15-0ubuntu10.15) but it is not going to be installed. Depends: linux-libc-dev but it is not going to be installed. The following actions will resolve these dependencies: Keep the following packages at their current version: 1) g++ [Not Installed] 2) g++-4.6 [Not Installed] 3) libc6-dev [Not Installed] 4) libstdc++6-4.6-dev [Not Installed] Accept this solution? [Y/n/q/?] n The following actions will resolve these dependencies: Install the following packages: 1) libc-dev-bin [2.15-0ubuntu10.15 (precise-security, precise-updates)] 2) linux-libc-dev [3.2.0-105.146 (precise-security, precise-updates)] 3) manpages [3.35-0.1ubuntu1 (precise)] 4) manpages-dev [3.35-0.1ubuntu1 (precise)] Upgrade the following packages: 5) libc-bin [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (pre 6) libc6 [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (precis Accept this solution? [Y/n/q/?] n The following actions will resolve these dependencies: Install the following packages: 1) libc-dev-bin [2.15-0ubuntu10.15 (precise-security, precise-updates)] 2) linux-libc-dev [3.2.0-23.36 (precise)] 3) manpages [3.35-0.1ubuntu1 (precise)] 4) manpages-dev [3.35-0.1ubuntu1 (precise)] Upgrade the following packages: 5) libc-bin [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (pre 6) libc6 [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (precis Accept this solution? [Y/n/q/?] n The following actions will resolve these dependencies: Install the following packages: 1) libc-dev-bin [2.15-0ubuntu10.15 (precise-security, precise-updates)] 2) linux-libc-dev [3.2.0-105.146 (precise-security, precise-updates)] Upgrade the following packages: 3) libc-bin [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (pre 4) libc6 [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (precis Leave the following dependencies unresolved: 5) libc-dev-bin recommends manpages-dev Accept this solution? [Y/n/q/?] n The following actions will resolve these dependencies: Install the following packages: 1) libc-dev-bin [2.15-0ubuntu10.15 (precise-security, precise-updates)] 2) linux-libc-dev [3.2.0-23.36 (precise)] Upgrade the following packages: 3) libc-bin [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (pre 4) libc6 [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (precis Leave the following dependencies unresolved: 5) libc-dev-bin recommends manpages-dev Accept this solution? [Y/n/q/?] n The following actions will resolve these dependencies: Install the following packages: 1) libc-dev-bin [2.15-0ubuntu10+openvz0 (precise)] 2) libc6-dev [2.15-0ubuntu10+openvz0 (precise)] 3) linux-libc-dev [3.2.0-105.146 (precise-security, precise-updates)] 4) manpages [3.35-0.1ubuntu1 (precise)] 5) manpages-dev [3.35-0.1ubuntu1 (precise)]
  • List of packages before this updated? apt-get update - aleksandr barakin
  • @alexanderbarakin, naturally. And also apt-get upgrade and apt-get dist-upgrade did. - pank
  • @alexanderbarakin, done. - pank
  • askubuntu.com/questions/154402/install-gcc-on-ubuntu-12-04-lts - strangeqargo
  • attach more, please, output apt-mark showhold . - aleksandr barakin

1 answer 1

As it turned out, the main problem is that you have installed packages from a third-party repository related to openvz .

probably, you have a virtual machine running just under openvz control, and replacing these packages with distributive ones can lead, for example, to its inoperability (you should check with the server administrator (s) here).

The dependency resolver for the apt-get program could not cope with this choice.

I suggest using (at least for this case) the aptitude program, which has a much more “intelligent” dependency resolver, which can make up several options for the required actions, and offer them to you to choose from.

An example of such a sentence:

 The following actions will resolve these dependencies: Install the following packages: 1) libc-dev-bin [2.15-0ubuntu10.15 (precise-security, precise-updates)] 2) linux-libc-dev [3.2.0-105.146 (precise-security, precise-updates)] 3) manpages [3.35-0.1ubuntu1 (precise)] 4) manpages-dev [3.35-0.1ubuntu1 (precise)] Upgrade the following packages: 5) libc-bin [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (pre 6) libc6 [2.15-0ubuntu10+openvz0 (now, precise) -> 2.15-0ubuntu10.15 (precis Accept this solution? [Y/n/q/?]

you can agree with it (the default action), disagree by typing n (another option will be calculated and offered), or you can end the program by pressing q .

In your particular case, it probably makes sense to agree with the option in which you are offered to install packages from the same repository associated with openvz :

 The following actions will resolve these dependencies: Install the following packages: 1) libc-dev-bin [2.15-0ubuntu10+openvz0 (precise)] 2) libc6-dev [2.15-0ubuntu10+openvz0 (precise)] 3) linux-libc-dev [3.2.0-105.146 (precise-security, precise-updates)] 4) manpages [3.35-0.1ubuntu1 (precise)] 5) manpages-dev [3.35-0.1ubuntu1 (precise)]
  • Thank. I learned a lot of new things. - pank