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--- linux:bbr [2018/01/08 12:33] – percy
+++ linux:bbr [2018/01/08 13:32] – [DigitalOcean enable BBR] percy
@@ Line 20: / Line 20: @@
 net.ipv4.tcp_congestion_control = bbr
 </code>
+==== DigitalOcean enable BBR ====
+Refer
+  - https://www.digitalocean.com/community/tutorials/how-to-update-a-digitalocean-server-s-kernel
+Install the grub loader in the console panel, first you need power off, then after install the grub loader, then power on.
+Install the new kernel, you can find the kernel what you want
+  apt-cache search --names-only linux-image
+   sudo apt-get install linux-image-4.11.0-13-generic linux-headers-4.11.0-13-generic
+Or
+  sudo apt-get install linux-image-4.10.0-42-generic linux-headers-4.10.0-42-generic
+Update the grub
+  sudo vim /etc/default/grub
+Add the line:
+  GRUB_DISABLE_SUBMENU = Y
+  export GRUB_CONFIG=`sudo find /boot -name "grub.cfg"`
+  sudo update-grub
+Now you find all the kernel
+  grep 'menuentry ' $GRUB_CONFIG | cut -f 2 -d "'" | nl -v 0
+And you need update /etc/default/grub, and set update the index to the one your want
+  GRUB_DEFAULT=0
+Now you can reoot the VPS