deploy/clusters/resources/set_kernel_cmdline.sh

   1 #!/usr/bin/env bash
   2 # The "intel_iommu=on iommu=pt" kernel command line is necessary
   3 # for QAT support
   4 # TODO Add check for existence of QAT hardware?
   5 set -eux -o pipefail
   6 grub_file=${1:-"/etc/default/grub"}
   7 kernel_parameters="intel_iommu=on iommu=pt"
   8 sed -i~ "/^GRUB_CMDLINE_LINUX=/{h;s/\(=\".*\)\"/\1 ${kernel_parameters}\"/};\${x;/^$/{s//GRUB_CMDLINE_LINUX=\"${kernel_parameters}\"/;H};x}" "$grub_file"
   9 update-grub
  10 reboot