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Difference between revisions of "Downgrading packages"
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{{warning|Downgrading packages will almost always leave you in an unsupported partial upgrade state. These instructions are intended for advanced users who understand the consequences of downgrading packages}} | {{warning|Downgrading packages will almost always leave you in an unsupported partial upgrade state. These instructions are intended for advanced users who understand the consequences of downgrading packages}} | ||
=Introduction= | =Introduction= <!--T:2--> | ||
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There are sometimes circumstances that require downgrading a package temporarily. While this should not be an issue for Manjaro users on the stable branch, it is sometimes needed when using the unstable branch. | There are sometimes circumstances that require downgrading a package temporarily. While this should not be an issue for Manjaro users on the stable branch, it is sometimes needed when using the unstable branch. | ||
=The easy way using downgrade= | =The easy way using downgrade= <!--T:4--> | ||
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'''downgrade''' is an application that helps automate the process of locating and downgrading packages. | '''downgrade''' is an application that helps automate the process of locating and downgrading packages. | ||
==Installing Downgrade== | ==Installing Downgrade== <!--T:6--> | ||
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First you need to install Downgrade, which is available in the official repositories of Manjaro. This can be done with the following command: | First you need to install Downgrade, which is available in the official repositories of Manjaro. This can be done with the following command: | ||
pamac install downgrade | <!--T:8--> | ||
pamac install downgrade | |||
==Using Downgrade== | ==Using Downgrade== <!--T:9--> | ||
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To use '''downgrade''' simply run the command followed by the name of the package you want to downgrade. For example: | To use '''downgrade''' simply run the command followed by the name of the package you want to downgrade. For example: | ||
downgrade firefox | <!--T:11--> | ||
downgrade firefox | |||
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This will result in output which looks like this: | This will result in output which looks like this: | ||
Available packages: | <!--T:13--> | ||
Available packages: | |||
1) firefox 55.0.3 1 x86_64 (remote) | 1) firefox 55.0.3 1 x86_64 (remote) | ||
2) firefox 60.0.1 1 x86_64 (remote) | 2) firefox 60.0.1 1 x86_64 (remote) | ||
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+ 16) firefox 66.0.5 1 x86_64 (local) | + 16) firefox 66.0.5 1 x86_64 (local) | ||
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The entries listed as "local" are versions from your local package cache. The entries identified as "remote" are available from the Arch Linux Archive(ALA). | The entries listed as "local" are versions from your local package cache. The entries identified as "remote" are available from the Arch Linux Archive(ALA). | ||
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{{warning|Installing packages from the ALA is inherently dangerous as sometimes Manjaro needs custom versions of certain packages. Doing this can result in a broken system. As a result, downgrading from the ALA is disabled by default on the stable branch. If needed, you can enable it by setting the environment variable <pre>DOWNGRADE_FROM_ALA=1</pre>}} | {{warning|Installing packages from the ALA is inherently dangerous as sometimes Manjaro needs custom versions of certain packages. Doing this can result in a broken system. As a result, downgrading from the ALA is disabled by default on the stable branch. If needed, you can enable it by setting the environment variable <pre>DOWNGRADE_FROM_ALA=1</pre>}} | ||
==Adding packages to the ignore list== | ==Adding packages to the ignore list== <!--T:16--> | ||
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After downgrading the package, you should see a message similar to this: | After downgrading the package, you should see a message similar to this: | ||
add firefox to IgnorePkg? [y/n] | add firefox to IgnorePkg? [y/n] | ||
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If you answer "y", the package will no long be upgraded in future updates until you manually remove it from the '''IgnorePkg''' line of '''/etc/pacman.conf''' | If you answer "y", the package will no long be upgraded in future updates until you manually remove it from the '''IgnorePkg''' line of '''/etc/pacman.conf''' | ||
=Downgrading packages manually= | =Downgrading packages manually= <!--T:19--> | ||
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The directory {{ic|/var/cache/pacman/pkg}} contains old versions of packages. First look for the package that you wish to downgrade is this directory then use {{ic|pacman -U}} to install it. For example, it could look like this: | The directory {{ic|/var/cache/pacman/pkg}} contains old versions of packages. First look for the package that you wish to downgrade is this directory then use {{ic|pacman -U}} to install it. For example, it could look like this: | ||
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We have to use the following command to install the previously installed version of the packages that need to be downgraded: | We have to use the following command to install the previously installed version of the packages that need to be downgraded: | ||
sudo pacman -U /var/cache/pacman/pkg/firefox-64.0.2-1-x86_64.pkg.tar.xz | <!--T:22--> | ||
sudo pacman -U /var/cache/pacman/pkg/firefox-64.0.2-1-x86_64.pkg.tar.xz | |||
==Ensuring downgraded packages won't be upgraded again== | ==Ensuring downgraded packages won't be upgraded again== <!--T:23--> | ||
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In order to stop these packages from being upgraded the next time you run updates, you can add them to the ignore list in '''/etc/pacman.conf'''. Look for the section that looks like this: | In order to stop these packages from being upgraded the next time you run updates, you can add them to the ignore list in '''/etc/pacman.conf'''. Look for the section that looks like this: | ||
# Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup | # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup | ||
# IgnorePkg = | # IgnorePkg = | ||
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Remove the comment in front of '''IgnorePkg''' and add the package name to the list. When you are done it should look like this: | Remove the comment in front of '''IgnorePkg''' and add the package name to the list. When you are done it should look like this: | ||
# Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup | # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup | ||
IgnorePkg = firefox | IgnorePkg = firefox | ||
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Once this is done the package will no long be upgraded in future updates until you manually remove it from the '''IgnorePkg''' line of '''/etc/pacman.conf''' | Once this is done the package will no long be upgraded in future updates until you manually remove it from the '''IgnorePkg''' line of '''/etc/pacman.conf''' | ||
</translate> | </translate> | ||