Chapter 9. Handling package management history
With the dnf history command, you can review the following information:
- Timeline of DNF transactions.
- Dates and times the transactions occurred.
- Number of packages affected by the transactions.
- Whether the transactions succeeded or were aborted.
- If the RPM database was changed between the transactions.
You can also use the dnf history command to undo the transactions.
9.1. Listing transactions Copy linkLink copied to clipboard!
You can use DNF to perform the following tasks:
- List the latest transactions.
- List the latest operations for a selected package.
- Display details of a particular transaction.
Procedure
Depending on your scenario, use one of the following options to display transaction information:
To display a list of all the latest DNF transactions, enter:
# dnf historyThe output contains the following information:
-
The
Action(s)column displays which type of action was performed during a transaction, for example, Install (I), Upgrade (U), Remove (E), and other actions. The
Alteredcolumn displays the number of actions performed during the transaction. The number of actions can also be followed by the result of the transaction.For more information about the values of the
Action(s)andAlteredcolumns, see thednf(8)man page on your system.
-
The
To display a list of all the latest operations for a selected package, enter:
# dnf history list <package_name>To display details of a particular transaction, enter:
# dnf history info <transaction_id>
You can filter the results by appending global expressions as arguments. For more details, see Specifying global expressions in dnf input.
9.2. Reverting DNF transactions Copy linkLink copied to clipboard!
Reverting a DNF transaction can be useful if you want to undo operations performed during the transaction. For example, if you installed several packages by using the dnf install command, you can uninstall these packages at once by reverting an installation transaction.
You can revert DNF transactions the following ways:
-
Revert a single DNF transaction by using the
dnf history undocommand. -
Revert all DNF transactions performed between the specified transaction and the last transaction by using the
dnf history rollbackcommand.
Downgrading RHEL system packages to an older version by using the dnf history undo and dnf history rollback command is not supported. This concerns especially the selinux, selinux-policy-*, kernel, and glibc packages, and dependencies of glibc such as gcc. Therefore, downgrading a system to a minor version (for example, from RHEL 9.1 to RHEL 9.0) is not recommended because it might leave the system in an incorrect state.
9.2.1. Reverting a single DNF transaction Copy linkLink copied to clipboard!
You can revert steps performed within a single transaction by using the dnf history undo command:
-
If the transaction installed a new package,
dnf history undouninstalls the package. -
If the transaction uninstalled a package,
dnf history undoreinstalls the package. The
dnf history undocommand also attempts to downgrade all updated packages to their previous versions if the older packages are still available.NoteIf an older package version is not available, the downgrade by using the
dnf history undocommand fails.
Procedure
Identify the ID of a transaction you want to revert:
# dnf history ID | Command line | Date and time | Action(s) | Altered -------------------------------------------------------------------- 13 | install zip | 2022-11-03 10:49 | Install | 1 12 | install unzip | 2022-11-03 10:49 | Install | 1Optional: Verify that this is the transaction you want to revert by displaying its details:
# dnf history info <transaction_id>Revert the transaction:
# dnf history undo <transaction_id>For example, if you want to uninstall the previously installed
unzippackage, enter:# dnf history undo 12
9.2.2. Reverting multiple DNF transactions Copy linkLink copied to clipboard!
You can revert all DNF transactions performed between a specified transaction and the last transaction by using the dnf history rollback command. Note that the transaction specified by the transaction ID remains unchanged.
Procedure
Identify the transaction ID of the state you want to revert to:
# dnf history ID | Command line | Date and time | Action(s) | Altered ------------------------------------------------------------------ 14 | install wget | 2022-11-03 10:49 | Install | 1 13 | install unzip | 2022-11-03 10:49 | Install | 1 12 | install vim-X11 | 2022-11-03 10:20 | Install | 171 EERevert specified transactions:
# dnf history rollback <transaction_id>For example, to revert to the state before the
wgetandunzippackages were installed, enter:# dnf history rollback 12Alternatively, to revert all transactions in the transaction history, use the transaction ID 1:
# dnf history rollback 1