This is useful in case rebuilding tools like revdep-rebuild are run on the binary package server. Portage is the spline of Gentoo. Caution: the above emaint sync will update your main Gentoo tree using rsync, but it will not be signature-checked at this point, unless you are using a version of Portage that was emerged with the rsync-verify USE flag set (once all packages are updated per the following instructions, signature checking will be enabled by default). Gentoo package … If anything isn't working as expected, contact us. In contrast to -march, the -mtune argument does not prevent code from being executed on other processors. Gentoo! The URI must always point to the directory in which the Packages file resides. There are a few very common solutions for your problem: a) Virtual Machine with Gentoo, that supports snapshots. On clients, a few configuration changes are needed in order for the binary packages to be used. If the binary packages are not found, a regular (source-based) installation will be performed. Examples would be the Linux kernel source packages or upstream binary packages (those ending with -bin like www-client/firefox-bin). Otherwise the client will not know where the binary packages are stored which results in Portage being unable to retrieve them. When -mtune is not set it defaults to whatever -march is set to. Or, if you can't be bothered with the extra work to set up NFS, copy the contents of the PKGDIR from the chroot'ed system to the Atom after you finished building all the chroot'ed binary packages, then emerge world in the Atom. Added Packages. 2. The most common way to automatically create binary packages whenever a package is installed by Portage is to use the buildpkg feature, which can be set in /etc/portage/make.conf like so: With this feature enabled, every time Portage installs software it will create a binary package as well. To accomplish this, use the --usepkg-exclude option: To enable such additional settings for each emerge command, add the options to the EMERGE_DEFAULT_OPTS variable in the make.conf file: Exporting and distributing the binary packages will lead to useless storage consumption if the binary package list is not actively maintained. The final section also details using the Build Server Utilities provided in the Hacking … When using SSH, it is possible to use the root Linux user's SSH key (without passphrase as the installations need to happen in the background) to connect to a remote binary package host. There are three main methods for creating binary packages: All three methods will create a binary package in the directory pointed to by the PKGDIR variable (which defaults to /var/cache/binpkgs). This guide explains how to create them, install them, and how to setup a binary package server. Binary packages in built inside chroot environments on a host machine, you can create any number of environments with different settings. This file acts as a cache for the metadata of all binary packages in the packages directory. Snapshots can be created using the /usr/lib64/portage/python2.7/binhost-snapshot or /usr/lib64/portage/python3.3/binhost-snapshot tool. If a package is built with a different USE flag combination, Portage will either ignore the binary package (and use source-based build) or fail, depending on the options passed to the emerge command upon invocation (see Installing binary packages). Similarly, eclean updates it when it removes binary packages. Binary packages created by Portage have the file name ending with .tbz2. This helps the Gentoo to optimize the packages for each system. To be of any real use in a production environment any Linux distribution must be capable of being installed in a repeatable and reliable manner. The file is updated whenever Portage adds a binary package to the directory. These files consist of two parts: See man xpak for a description of the format. For instance, to create binary packages of all installed GCC versions: To create binary packages of all installed packages on the system, use the * glob: There is a caveat with this method: it relies on the installed files, which can be a problem in case of configuration files. Kent was an active member of the Gentoo community for many years. This guide is something I've posted on the forums several times in response to users posting about nothing works.If your gcc is broken after a --depclean, this guide is not for you. For this, the --buildpkgonly (-B) option can be used: The latter approach however requires all build time dependencies to be previously installed. Similar to excluding binary packages for a certain set of packages or categories, clients can be configured to exclude binary package installations for a certain set of packages or categories. In app-portage/portage-utils some tools exists that are able to split or create tbz2 and xpak files. Be more careful in future. After you set the package host (via PORTAGE_BINHOST), set the getbinpkgoption in FEATURES, and add --binpkg-respect-use=nto EMERGE_DEFAULT_OPTS, you are then set. This is done by passing the --buildpkg-exclude option to emerge: This could be used for packages that have little to no benefit in having a binary package available. To force inclusion of configuration files, use the --include-config or --include-unmodified-config options. The file is updated whenever Portage adds a binary package to the directory. If the binary packages are not found, a regular (source-based) installation will be performed. This generally contains development or soon-to-be-released versions of the ebuild that will later be in the official Portage tree, and can be tracked to get early access to those ebuilds before they go through review and commit to Portage. I opted to put the whole portage tree onto the new drive, just to not run out of disk space. -- Regards, Mick It is possible to tell Portage not to create binary packages for a select few packages or categories. Ask Question Asked 6 years, 8 months ago. A common approach for distributing binary packages is to create a web-based binary package host. I would really like to extend this to work with my desktops and laptops, but unfortunately the USE flags for desktop systems and servers tend to be very different. Zoobab wrote a simple shell tool named quickunpkg to quickly unpack tbz2 files. It takes four arguments: The files from the package directory are copied to the target directory. Download the binary package(s) from a remote binary package host. The image's userland contains a complete (OpenRC-based) Gentoo system (including a full Portage tree) - so you can run emerge operations immediately - and has been pre-populated with a reasonable package set (Xfce v4.12, LibreOffice v6.3.5.2, Firefox Quantum v73.0.1, Chromium v82.0.4068.4, Thunderbird v68.5.0, VLC v3.0.8, Kodi v18.6, GIMP v2.10.14 … The following command will split the tbz2 into a .tar.bz2 and an .xpak file: The .xpak file can be examined using the qxpak utility. This page was last edited on 25 February 2021, at 13:39. There are distros like Gentoo (or FreeBSD) which does not come with binaries but only with source code for packages (ports). This is useful in case rebuilding tools like revdep-rebuild are run on the binary package server. Administrators often change configuration files after installing software. ... gentoo packages. Passing the --rebuilt-binaries option to emerge will reinstall every binary that has been rebuilt since the package was installed. The first time, support for storing multiple successive builds of … This guide is for rescuing your install when you can't chroot in, al… Such packages can be hosted over a central server and each system downloads just the binary package. > Oh, and you don't need a package server, just export PKGDIR via NFS and > mount it on the netbook. Set this when you run out of memory during build. There are a few options that can be passed on to the emerge command that inform Portage about using binary packages: In order to automatically use binary package installations, the appropriate option can be added to the EMERGE_DEFAULT_OPTS variable: There is a Portage feature that automatically implements the equivalent of --getbinpkg (-g) without the need for updating the EMERGE_DEFAULT_OPTS variable with the --getbinpkg value: When using a binary package host, clients need to have the PORTAGE_BINHOST variable set in /etc/portage/make.conf or the sync-uri variable in /etc/portage/binrepos.conf.