Fedora preinstall

• http://www.cyberciti.biz/tips/linux-get-list-installed-software-reinstallation-restore.html

  dnf list installed > fedoraxx_list_installed

Manually installed package:

• https://ask.fedoraproject.org/en/question/75855/find-manually-installed-packages-by-dnf/

Have you already discovered the command sudo dnf history? You can use it to access a database with all previous transaction. Each transaction has an ID number (first column).

The history command knows the following sub-commands: list, info, redo, undo, rollback, userinstalled

Now, you can get a list of all user-installed packages.:

  sudo dnf history userinstalled.

You can also list all changes of a transaction:

  sudo dnf history list <i>
  #, ie sudo dnf history list 1,

or get more info about the packages of a certain transaction:

  sudo dnf history info <i>
  #, ie sudo dnf history info 4

To undo a complete transaction, you do: sudo dnf history undo <i>.

For more details about dnf type man dnf or dnf –help in your terminal. There is plenty more you can do with dnf…

I created a list of all packages on my F21 system with:

rpm -qa --qf "%{NAME}.%{ARCH}\n" | sort > Packages.LST

After a clean install of F22, I tried to reinstall all those packages with:

dnf -y install $(cat Packages.LST)

This used to work fine with Yum, but DNF fails and exits with an error when it tries to install a package that does not exist in the F22 repos. This appears to be a “feature” of DNF.

Dnf and yum will quit if a package member is not present. The rules are ALL or nothing. I posted a script that I used to download groups. Take a look at it and modify it to your needs. I have it running for packages. If one package fails to exist, it still keeps on going.

I turn the list into a bash script. add

  #! /bin/bash
  sudo dnf install #to the front of each line.

You can use an editor like gedit to change all line ends, to line ed sudo dnf install. Copy a lineend into the input column. Extra junk on the copy just delete down to the lineend

chmod 774 your-script-name

./your-script-name

multiple installs are ok. They will be ignored.

In Console:

  rpm -qa > /backup/installed-software.log
  for i in $(cat /backup/installed-software.log) ; do packages+="$i " ; done
  yum install $packages