DNF5-INSTALLROOT(7)

NAME
dnf5-installroot - Installroot Parameter

DESCRIPTION

The --installroot parameter is used to specify an alternative installroot, relative to where all packages will be installed. Think of it like doing chroot <root> dnf, except using --installroot allows DNF5 to work before the chroot is created.

cachedir, system_cachedir, log files, releasever, and gpgkey are taken from or stored in the installroot. OpenPGP keys are imported into the installroot from a path relative to the host which can be specified in the repository section of configuration files.

configuration file, reposdir, and vars are taken from inside the installroot, unless the command-line argument --use-host-config is passed, in which case the configuration and environment from the host system will be used.

Note: When a path is specified within a command line argument (--config=CONFIG_FILE_PATH in case of configuration file, --setopt=reposdir=/path/to/repodir for reposdir, --setopt=cachedir=/path/to/cachedir for cachedir, --setopt=system_cachedir=/path/to/system_cachedir for system_cachedir, --setopt=logdir=/path/to/logdir for logdir, or --setopt=varsdir=/paths/to/varsdir for vars), then this path is always relative to the host with no exceptions. pluginpath and pluginconfpath are relative to the host.

Note: You may also want to use the command-line option --releasever=RELEASEVER when creating the installroot, otherwise the $releasever value is taken from the rpmdb within the installroot (and thus it is empty at the time of creation and the transaction will fail). If --use-host-config is used, the releasever will be detected from the host (/) system. The new installroot path at the time of creation does not contain the repository, releasever and dnf.conf files.

On a modular system you may also want to use the --setopt=module_platform_id=<module_platform_name:stream> command-line option when creating the installroot, otherwise the module_platform_id value will be taken from the /etc/os-release file within the installroot (and thus it will be empty at the time of creation, the modular dependency could be unsatisfied and modules content could be excluded).

EXAMPLES

    dnf5 --installroot=INSTALLROOT --releasever=RELEASEVER install system-release
        Permanently sets the releasever of the system in the INSTALLROOT directory to RELEASEVER.

    dnf5 --installroot=INSTALLROOT --setopt=reposdir=PATH --config /path/dnf.conf upgrade
        Upgrades packages inside the installroot from a repository described by --setopt using configuration from /path/dnf.conf.

Author
See AUTHORS.md in dnf5 source distribution.

Copyright
Contributors to the dnf5 project.