@colin
I rewrite a new patch that:
1. add --function-key option to read function key and set to "hotkey" environment variable.
2. grub reads "hotkey" environment variable and boot to the entry at the start.
3. add GRUB_HIDDEN_TIMEOUT_KEY variable in /etc/default/grub
@colin TIMEOUT_ KEY variable in /etc/default/grub
I rewrite a new patch that:
1. add --function-key option to read function key and set to "hotkey" environment variable.
2. grub reads "hotkey" environment variable and boot to the entry at the start.
3. add GRUB_HIDDEN_
Note: Currently we only support one hotkey.