Open $ vim /etc/default/grub then add elevator=noop next to GRUB_CMDLINE_LINUX_DEFAULT. Run $ update-grub and $ cat /sys/block/sda/queue/scheduler to be sure that noop is being used:
$ vim /etc/default/grub
$ update-grub
$ cat /sys/block/sda/queue/scheduler
[noop] deadline cfq
| " _ _ " | |
| " _ /|| . . ||\ _ " | |
| " ( } \||D ' ' ' C||/ { % " | |
| " | /\__,=_[_] ' . . ' [_]_=,__/\ |" | |
| " |_\_ |----| |----| _/_|" | |
| " | |/ | | | | \| |" | |
| " | /_ | | | | _\ |" | |
| It is all fun and games until someone gets hacked! |
| <div class="form-group"> | |
| <%= form.label :type, "Type", class: "font-weight-bold" %> | |
| <%= form.select :type, ['TextQuestion', 'UrlQuestion'], { include_blank: true }, { class: "form-control", data: { action: "input->toggle#changed", target: "toggle.select" } } %> | |
| </div> | |
| <div class="form-group"> | |
| <%= form.label :name, "Name", class: "font-weight-bold" %> | |
| <%= form.text_field :name, class: "form-control" %> | |
| </div> | |
| <div class="form-group" data-target="toggle.element" data-values="UrlQuestion"> | |
| <%= form.label :url, "URL", class: "font-weight-bold" %> |