91 lines
2.6 KiB
ReStructuredText
91 lines
2.6 KiB
ReStructuredText
Example
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=======
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.. toctree::
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:maxdepth: 2
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Here is an example of how the snapshots are created and how to rollback and pacman
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transaction. Here the nano package is installed:
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.. code-block:: bash
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pacman -S nano
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.. code-block:: none
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resolving dependencies...
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looking for conflicting packages...
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Packages (1) nano-2.5.3-1
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Total Installed Size: 2.14 MiB
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:: Proceed with installation? [Y/n] Y
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(1/1) checking keys in keyring [######################################] 100%
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(1/1) checking package integrity [######################################] 100%
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(1/1) loading package files [######################################] 100%
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(1/1) checking for file conflicts [######################################] 100%
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(1/1) checking available disk space [######################################] 100%
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:: Running pre-transaction hooks...
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(1/1) Performing snapper pre snapshots for the following configurations...
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=> root: 1033
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:: Processing package changes...
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(1/1) installing nano [######################################] 100%
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:: Running post-transaction hooks...
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(1/1) Performing snapper post snapshots for the following configurations...
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=> root: 1034
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The snapper snapshot number is given for each snapper configuration that is used. This
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is also logged in pacman's log.
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Here are the snapshots created before and after the pacman transaction:
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.. code-block:: bash
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snapper -c root list -t pre-post | tail -n 1
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.. code-block:: none
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1033 | 1034 | Fri 22 Apr 2016 01:54:13 PM CDT | Fri 22 Apr 2016 01:54:14 PM CDT | pacman -S nano |
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Here is what changed during the transaction:
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.. code-block:: bash
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snapper -c root status 1033..1034
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.. code-block:: none
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+..... /etc/nanorc
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c..... /etc/snapper/.snap-pac-pre
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+..... /usr/bin/nano
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+..... /usr/bin/rnano
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+..... /usr/share/doc/nano
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+..... /usr/share/doc/nano/faq.html
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+..... /usr/share/doc/nano/fr
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+..... /usr/share/doc/nano/fr/nano.1.html
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+..... /usr/share/doc/nano/fr/nanorc.5.html
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+..... /usr/share/doc/nano/fr/rnano.1.html
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The above output is truncated, but it continues. See :manpage:`snapper(8)` to for what each
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symbol means. You can also do ``snapper diff`` in the same way.
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Then, to undo the pacman transaction:
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.. code-block:: bash
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snapper -c root undochange 1033..1034
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.. code-block:: none
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create:0 modify:3 delete:100
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Now nano is no longer installed, along with all the files it changed:
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.. code-block:: bash
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pacman -Qi nano
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.. code-block:: none
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error: package 'nano' was not found
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