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--- linux [2026/09/07 16:37] – reddy
+++ linux [2026/10/25 21:18] (current) – Added sysctl commands reddy
@@ Line 181: / Line 181: @@
 smartctl -H /dev/sda  # Perform health check
 smartctl -A /dev/sda  # Look at Reallocated_Sector_CT and Current_Pending_Sector
+</code>
+==== Grub Boot ====
+<code>
+sudo grub-install --recheck /dev/sda
+sudo update-grub
+</code>
+==== Sysctl ====
+<code>
+sysctl -a  # List all parameters
+sysctl <param>  # List a specific parameter Eg. kernel.hostname, vm.swappiness
+sysctl -w <param>=<value>  # Temporary change to parameter
+sysctl -p <config_file>  # Reload from config (If no file specified, /etc/sysctl.conf)
 </code>