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--- old_kernel_cleanup [2026/02/27 23:09] – created tomek
+++ old_kernel_cleanup [2026/02/27 23:16] (current) – tomek
@@ Line 1: / Line 1: @@
 ====== Old Kernel Cleaup ======
+[[https://www.youtube.com/watch?v=uCR_CdNCVlQ]]
+===== Bakup GRUB and initrd =====
+<code>
+cp /boot/grub/grub.cfg /boot/grub/grub.cfg.bak
+cp /boot/initrd.gz /boot/initrd.gz.bak
+</code>
+===== Removing old kernel packages =====
+<code>
+// First list packages to delete //
+ls /var/log/packages/kernel-*-5.15.193*
+// Then run removepkg command //
+removepkg /var/log/packages/kernel-huge-5.15.193-x86_64-1
+removepkg /var/log/packages/kernel-generic-5.15.193-x86_64-1
+removepkg /var/log/packages/kernel-modules-5.15.193-x86_64-1
+removepkg /var/log/packages/kernel-source-5.15.193-noarch-1
+</code>
+//Do not remove kernel headers because if we'll remove kernel-headers by removepkg command we delete key system directories f.e. for script compiling so system would start but we wouldn't be able to compile any package, even simple console program//
+Then check does removepkg command cleaned all old kernel symlinks and folders. If not delete them manually:
+<code>
+cd /boot
+rm -f config-generic-5.15.193.x64 config-huge-5.15.193.x64
+rm -f System.map-generic-5.15.193 System.map-huge-5.15.193
+rm -f vmlinuz-generic-5.15.193 vmlinuz-huge-5.15.193
+rm -rf /usr/src/linux-5.15.193
+</code>
+===== Setting up new main kernel =====
+<code>
+cd /boot
+ln -sf vmlinuz-6.18.8 vmlinuz
+ln -sf System.map-6.18.8 System.map
+ln -sf .config-6.18.8 config
+</code>
+===== Generate new GRUB config =====
+<code>
+grub-mkconfig -o /boot/grub/grub.cfg
+</code>