2026-03-12 21:01:38

divers/linux_cleanup_boot_partition.txt

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+@ Technical Tip: Clean up /boot in CentOS, RHEL or Rocky Linux 8 and up
+
+1) Check the current kernel being used:
+
+
+sudo uname -sr
+
+
+2) List all kernels installed on the system:
+
+
+sudo rpm -q kernel
+
+
+3) Delete old kernels and only leave <X> number of kernels:
+
+
+sudo dnf remove --oldinstallonly --setopt installonly_limit=<X> kernel 
+
+
+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:
+
+
+rpm -e <kernel_name>
+
+Kernel names can be obtained through step 2.
+