When running 'dnf update' the system will only keep 3 of the previous kernel versions installed. Once I attempt to install the 4th update then dnf wants to remove the oldest installed kernel. How can I increase or decrease the number of available/installed kernels?

1 Answer 1


Edit the file '/etc/dnf/dnf.conf', changing the numeric value in installonly_limit=3 to a number of your choosing.

Be aware that if you increase the number too high then you run the risk of filling up the /boot partition.

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