Gentoo update tips when updating packages with blocks and masked files

It’s not so rear to have

blocks or masked files

when using Gentoo emerge system, but it is not complex and in most cases it is easy to resolve

To summarize it up at the beginning and then we are going to show you other articles using these advises here where you’ll see what are the steps we took to resolve the conflicts and masked packages:

  • Use verbose,verbose-conflicts and backtrack with emerge
  • Remove only big GUI packages, which have really big dependency graph like office suites or development IDEs
  • Remove obsolete packages – you do not need them, they can just make problems when updating, because emerge will take into consideration their requirements and dependencies and your update could be impossible!
  • Do not update everything with one line, you could update only the base libraries like QT, which are very important for the Linux GUI in general
  • Include explicitly packages, which block our updates in the emerge line! You could specify packages with the versions.
  • use tools like “equery” (part of app-portage/gentoolkit) for checking dependencies and/or which packages depend on the queried package. You can use it with specific version for the package. “qlist” (part of app-portage/portage-utils) also is a handful tool.
  • Sometimes when updating a group or a package with big dependency graph it is much easier to drop the -“u” update argument and to rebuild some packages with the updates.
  • In rear cases you can use “–nodeps” when updating or installing a new package (we do not need and show this one here!)
  • Do NOT rebuild the entire system with “emerge -v world” every time when you rebuild glibc, gcc, it is not mandatory to do it to have a healthy system.
  • Add or remove USE flags if needed – emerge will show you information about it. Use package.use, package.mask, package.unmask and so on.
  • use qlist to update/re(build) to pull currently installed packages with some name or category (categories)
    emerge -v $(qlist -IC|grep <NAME>)
    

    and for update just add “u” to “-v”:

    emerge -vu $(qlist -IC|grep <NAME>)
    

Keep on reading!

Gentoo updating KDE – package blocks

In continuing our tips for updating big or multiple packages in Gentoo this time we show how to update KDE Platform, Plasma and Apps packages. In Gentoo KDE Desktop GUI is split into three major categories:

  1. kde-frameworks
  2. kde-plasma
  3. kde-apps

How we managed to update in our current situation:

  1. Sometimes when updating a group or a package with big dependency graph it is much easier to drop the -“u” update argument and to rebuild some packages with the updates.
  2. use qlist to update/re(build) to pull currently installed packages with some name or category (categories)
  3. Remove obsolete packages – you do not need them, they can just make problems when updating, because emerge will take into consideration their requirements and dependencies and your update could be impossible!

More on the subject of update tips here: Gentoo update tips when updating packages with blocks and masked files
Keep on reading!

Gentoo updating perl with many masked and blocked packages

After our previous howto Gentoo – update dev-libs/icu on a desktop box with KDE GUI and many masked packages we want to show you another example of how to update perl, which could have hundreds dependencies installed as perl modules. You can check for more details above howto, details about what to do when there are masked and blocked packages, because here we use only some of the options we have the proper ones for this case.
Just to note when updating perl you must reinstall (recompile, rebuild) all the external modules (additional packages) and all perl modules installed with CPAN module (if you do not know what is this, you probably have not used it so no worries).

How we managed to update in our current situation:

  • use qlist to update/re(build) to pull currently installed packages with some name or category (categories)
  • Add or remove USE flags if needed – emerge will show you information about it. Use package.use, package.mask, package.unmask and so on.
  • Use verbose,verbose-conflicts and backtrack with emerge
  • Include explicitly packages, which block our updates in the emerge line! You could specify packages with the versions.

More on the subject of update tips here: Gentoo update tips when updating packages with blocks and masked files
Keep on reading!

Gentoo – update dev-libs/icu on a desktop box with KDE GUI and many masked packages

No, we are not going to answer why someone will use Gentoo for Desktop, but well such human beings still exist and we have one piece of snippet the updating old dev-libs/icu packet, because KDE Platform and new version of Chromium depend on a new version >=dev-libs/icu-59.
The main reason to include this update here is show how to deal with the dependency hell in Gentoo – multiple blocked packages and some old and deprecated packages, but still installed.

To summarize it up at the beginning how we did it

and then you’ll see what are the steps we took to resolve the conflicts and masked packages:

  • Use verbose,verbose-conflicts and backtrack with emerge
  • Remove only big GUI packages, which have really big dependency graph like office suites or development IDEs
  • Remove obsolete packages – you do not need them, they can just make problems when updating, because emerge will take into consideration their requirements and dependencies and your update could be impossible!
  • Include explicitly packages, which block our updates in the emerge line!
  • use tools like “equery” (part of app-portage/gentoolkit) for checking dependencies and/or which packages depend on the queried package. You can use it with specific version for the package. “qlist” (part of app-portage/portage-utils) also is a handful tool.
  • Sometimes when updating a group or a package with big dependency graph it is much easier to drop the -“u” update argument and to rebuild some packages with the updates.

More on the subject of update tips here: Gentoo update tips when updating packages with blocks and masked files
Keep on reading!