en	[[!meta title="Modifying the boot options using the Boot Loader"]]

en	The Boot Loader is the first screen that appears when Tails starts.

en	You can use the Boot Loader to modify the *boot options*. Boot options are special parameters used to troubleshoot or work around hardware support problems. For example, our [[list of known issues with graphics cards|support/known_issues/graphics]] documents boot options for different graphics cards.

en	It is currently impossible to change boot options permanently.

en	See [[!tails_ticket 18268]] for workarounds.

en	Depending on the computer, the Boot Loader might be either *GRUB* or *SYSLINUX*.

en	Using *SYSLINUX*

en	This is what *SYSLINUX* looks like:

en	[[!img install/inc/screenshots/syslinux.png link="no" class="screenshot" alt="Black screen ('SYSLINUX') with Tails logo and 2 options: 'Tails' and 'Tails (Troubleshooting Mode)'."]]

en	If your Boot Loader looks different, refer to our instructions below on modifying the boot options [[using GRUB|boot_options#grub]].

en	To modify the boot options in *SYSLINUX*:

en	Press **Tab** when *SYSLINUX* appears.

en	A command line with a list of boot options appears at the bottom of the screen.

en	[[!img syslinux-with-options.png link="no" class="screenshot" alt="SYSLINUX with a list of options starting with '/live/vmlinuz' at the bottom"]]

en	Modify the boot options as needed.

en	To add a boot option, press Space and type the boot option that you want to add.

en	If you want to add more than one boot option, type them one after the other and separate them with a Space.

en	Press Enter to start Tails.

en	Using *GRUB*

en	This is what *GRUB* looks like:

en	[[!img install/inc/screenshots/grub.png class="screenshot" alt="Black screen ('GNU GRUB') with Tails logo and 3 options: 'Tails' and 'Tails (Troubleshooting Mode)' and 'Tails (External Hard Disk)'."]]

en	If your Boot Loader looks different, refer to our instructions on modifying the boot options [[using SYSLINUX|boot_options#syslinux]] above.

en	To modify the boot options in *GRUB*:

en	Press **e** when GRUB appears.

en	A new screen appears with more options.

en	[[!img grub-with-options.png class="screenshot" alt="GRUB with a list of options starting with 'setparams Tails'"]]

en	To add a boot option, navigate with the arrows of the keyboard to the end of the line that starts with `linux`. Type the boot option that you want to add. The line is most likely wrapped and displayed on several lines but it is a single configuration line.

en	Press **Ctrl+X**, **F10**, or **Fn+F10** to start Tails.