How do I make a cheat-code permanent on Knoppix 8.6.1?

Summary: How do I make the following cheat-code permanent on knoppix 8.6.1 on usb stick, because filesystem type is iso9660 (read-only) and won’t let me edit /mnt-system/boot/isolinux/isolinux.cfg. Cheat code entered at boot prompt: knoppix xmodule=vesa Full Details: I’ve just put knoppix 8.6.1 on a usb stick (persistence was there by default). But X Window won’t…

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