Contents
What should I do if my yum update is not working?
Clear yum cache, yum clean all, followed by yum makecache to refresh it. If this doesn’t help, get a new CentOS repository definition file from the official website.
What is the output of the yum update command?
The screenshot below shows the type of output you’ll typically see when first issuing the yum update command. As you can see, the output from yum first lists the repositories it’s querying, which are the default ones for CentOS: AppStream, Base, and Extras. Below that, yum lists the various packages which it has found updates for.
How to update a single package in Yum?
Update a single package If you need to update a certain package without running an update for every application installed, just specify the name of the package in your yum update command. $ yum update name-of-package Multiple packages can be specified, separated by a space.
When to use exclude option in yum update?
If you need to run the yum update command to update all packages but you wish to exclude a package, you can specify the –exclude option. A common situation where administrators may find this necessary is with kernel updates since these are major updates that could cause unpredictable errors on a production server.
Why is Yum not installing on CentOS 7?
No repositories available Some CentOS 7 installations don’t configure any yum repositories by default, so yum will be unable to install or update any package. You can quickly check if this is the case by navigating to the /etc/yum.repos.d folder to see if any files are present, or by executing the following command:
Where is the database located in yum update?
yum update Yum’s own package information database is stored under the folder /var/lib/yum/yumdb and can be accessed using the yumdb command (part of the yum-utils package). When the database is broken, it can trigger the “database disk image is malformed” error when running yum. In most cases, the issue is easily fixed with this command:
How to fix the CentOS update depency problem?
Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3.
What’s the only safe thing Yum can do?
At this point the only safe thing yum can do is fail. There are a few ways to work “fix” this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream.