Installing and Removing Flatpak

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Flatpak and Remotes

A Flatpak remote is a local representation of an online Flatpak repository. It can be a statically defined ‘.flatpakrepo’ file, manually placed under ‘/etc/flatpak/repos.d/’, or a dynamically defined section of the active configuration file, which is the ‘/var/lib/flatpak/repo/config’ file.

The addition of a description of a Flatpak remote in the active configuration file is performed by the Flatpak tool, when the command flatpak remote-add is executed.

Listing Repos with DNF

List the enabled repos: either with dnf repolist or dnf repolist --enabled. I can add the verbose option -v.

user1@localhost:~$ dnf repolist -v
Loaded plugins: builddep, changelog, config-manager, copr, debuginfo-install, download, generate_completion_cache, groups-manager, kpatch, needs-restarting, notify-packagekit, playground, product-id, repoclosure, repodiff, repograph, repomanage, reposync, subscription-manager, system-upgrade, uploadprofile
Not root, Subscription Management repositories not updated
DNF version: 4.20.0
cachedir: /var/tmp/dnf-user1-w76vxc5s
OS software                                                   2.7 MB/s | 2.7 kB     00:00    
Application software                                          2.7 MB/s | 2.8 kB     00:00    
Repo-id            : AppStream
Repo-name          : Application software
Repo-revision      : 1761027148
Repo-updated       : Tue 21 Oct 2025 08:12:28 AM CEST
Repo-pkgs          : 4,514
Repo-available-pkgs: 4,514
Repo-size          : 6.5 G
Repo-baseurl       : file:///mnt/AppStream
Repo-expire        : 172,800 second(s) (last: Sat 04 Jul 2026 10:29:26 PM CEST)
Repo-filename      : /etc/yum.repos.d/local.repo

Repo-id            : baseOS
Repo-name          : OS software
Repo-revision      : 1761027164
Repo-updated       : Tue 21 Oct 2025 08:12:45 AM CEST
Repo-pkgs          : 946
Repo-available-pkgs: 946
Repo-size          : 1.3 G
Repo-baseurl       : file:///mnt/BaseOS
Repo-expire        : 172,800 second(s) (last: Sat 04 Jul 2026 10:29:26 PM CEST)
Repo-filename      : /etc/yum.repos.d/local.repo
Total packages: 5,460
user1@localhost:~$ 

user1@localhost:~$ dnf repolist --enabled -v
Loaded plugins: builddep, changelog, config-manager, copr, debuginfo-install, download, generate_completion_cache, groups-manager, kpatch, needs-restarting, notify-packagekit, playground, product-id, repoclosure, repodiff, repograph, repomanage, reposync, subscription-manager, system-upgrade, uploadprofile
Not root, Subscription Management repositories not updated
DNF version: 4.20.0
cachedir: /var/tmp/dnf-user1-w76vxc5s
Last metadata expiration check: 0:05:39 ago on Sat 11 Jul 2026 05:38:51 PM CEST.
Repo-id            : AppStream
Repo-name          : Application software
Repo-revision      : 1761027148
Repo-updated       : Tue 21 Oct 2025 08:12:28 AM CEST
Repo-pkgs          : 4,514
Repo-available-pkgs: 4,514
Repo-size          : 6.5 G
Repo-baseurl       : file:///mnt/AppStream
Repo-expire        : 172,800 second(s) (last: Sat 11 Jul 2026 05:38:51 PM CEST)
Repo-filename      : /etc/yum.repos.d/local.repo

Repo-id            : baseOS
Repo-name          : OS software
Repo-revision      : 1761027164
Repo-updated       : Tue 21 Oct 2025 08:12:45 AM CEST
Repo-pkgs          : 946
Repo-available-pkgs: 946
Repo-size          : 1.3 G
Repo-baseurl       : file:///mnt/BaseOS
Repo-expire        : 172,800 second(s) (last: Sat 11 Jul 2026 05:38:51 PM CEST)
Repo-filename      : /etc/yum.repos.d/local.repo
Total packages: 5,460
user1@localhost:~$ 

#LessonLearned There is no difference in output between dnf repolist -v and dnf repolist --enabled -v.

RPM Package States

An RPM package can be in either of the following states:

• installed
• available, i.e. installable:
  • as an individual physical RPM file, such as downloaded from a public RPM repository,
  • as a physical RPM file, part of a DNF repository.

Install an RPM package

Wassim@linux:~/Downloads$ rpm -i zoom_x86_64.rpm 
warning: zoom_x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 9706ac24: NOKEY
error: can't create transaction lock on /usr/lib/sysimage/rpm/.rpm.lock (Permission denied)
Wassim@linux:~/Downloads$ 
Wassim@linux:~/Downloads$ sudo rpm zoom_x86_64.rpm
[sudo] password for Wassim: 
RPM version 4.19.1.1
Copyright (C) 1998-2002 - Red Hat, Inc.
This program may be freely redistributed under the terms of the GNU GPL

Usage: rpm [-afgpqlsiv?] [-a|--all] [-f|--file] [--path] [-g|--group] [-p|--package]
        [--pkgid] [--hdrid] [-q|--query] [--triggeredby] [--whatconflicts]
        [--whatrequires] [--whatobsoletes] [--whatprovides] [--whatrecommends]
        [--whatsuggests] [--whatsupplements] [--whatenhances] [--nomanifest]
        [-c|--configfiles] [-d|--docfiles] [-L|--licensefiles] [-A|--artifactfiles]
        [--noghost] [--noconfig] [--noartifact] [--dump] [-l|--list]
        [--queryformat=QUERYFORMAT] [-s|--state] [--nofiledigest] [--nofiles] [--nodeps]
        [--noscript] [--allfiles] [--allmatches] [--badreloc] [-e|--erase=<package>+]
        [--excludedocs] [--excludepath=<path>] [--force] [-F|--freshen=<packagefile>+]
        [-h|--hash] [--ignorearch] [--ignoreos] [--ignoresize] [--noverify]
        [-i|--install] [--justdb] [--nodb] [--nodeps] [--nofiledigest] [--nocontexts]
        [--nocaps] [--noorder] [--noscripts] [--notriggers] [--oldpackage] [--percent]
        [--prefix=<dir>] [--relocate=<old>=<new>] [--replacefiles] [--replacepkgs]
        [--test] [-U|--upgrade=<packagefile>+] [--reinstall=<packagefile>+]
        [--restore=<packagefile>+] [-D|--define='MACRO EXPR'] [--undefine=MACRO]
        [-E|--eval='EXPR'] [--target=CPU-VENDOR-OS] [--macros=<FILE:...>] [--load=<FILE>]
        [--noplugins] [--nodigest] [--nosignature] [--rcfile=<FILE:...>] [-r|--root=ROOT]
        [--dbpath=DIRECTORY] [--querytags] [--showrc] [--quiet] [-v|--verbose]
        [--version] [-?|--help] [--usage] [--scripts] [--conflicts] [--obsoletes]
        [--provides] [--requires] [--recommends] [--suggests] [--supplements]
        [--enhances] [--info] [--changelog] [--changes] [--xml] [--triggers]
        [--filetriggers] [--last] [--dupes] [--filesbypkg] [--fileclass] [--filecolor]
        [--fileprovide] [--filerequire] [--filecaps]
Wassim@linux:~/Downloads$ 
Wassim@linux:~/Downloads$ 
Wassim@linux:~/Downloads$ sudo rpm -iv zoom_x86_64.rpm 
warning: zoom_x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 9706ac24: NOKEY
Verifying packages...
Preparing packages...
zoom-7.1.5.4332-1.x86_64
run post install script, action is 1...
Wassim@linux:~/Downloads$ 
Wassim@linux:~/Downloads$ rpm -qa zoom
zoom-7.1.5.4332-1.x86_64
Wassim@linux:~/Downloads$ 

Verify the integrity of an available RPM package

To verify the integrity, i.e. non corruption, of a RPM package: rpm -K. The command runs on the physical file of the RPM package. The command instructs the system to generate hash values based on the header and payload of the RPM physical file and compare them with the hash values stored in the RPM physical file itself.