en	[[!meta title="Starting Tails from an external hard disk or problematic USB stick"]]

en	When starting Tails from an external hard disk or problematic USB stick, Tails might return the following error message:

en	Unable to find a medium containing a live file system

en	In such cases, choose the **External Hard Disk** entry if it appears in the Boot Loader.

en	If the **External Hard Disk** entry does not appear in the Boot Loader, then remove the `live-media=removable` boot option. To do so, see our instructions on [[modifying the boot options using the Boot Loader|doc/advanced_topics/boot_options]].

en	<div class="caution">

en	Choosing the External Hard Disk entry in the Boot Loader or removing the live-media=removable boot option might be dangerous. If an adversary had access to the computer and installed a malicious Tails on the internal hard disk, the computer might start on the malicious Tails instead of on the USB stick.

en	</div>