28 lines
635 B
Plaintext
28 lines
635 B
Plaintext
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@ Technical Tip: Clean up /boot in CentOS, RHEL or Rocky Linux 8 and up
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1) Check the current kernel being used:
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sudo uname -sr
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2) List all kernels installed on the system:
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sudo rpm -q kernel
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3) Delete old kernels and only leave <X> number of kernels:
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sudo dnf remove --oldinstallonly --setopt installonly_limit=<X> kernel
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Note: <X> can be set to 1, 2, 3 or other numeric values. Carefully check the running kernel in step 2 and any other kernels used before running this command. Alternatively, use the following command to delete kernels one by one:
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rpm -e <kernel_name>
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Kernel names can be obtained through step 2.
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