Re: readonly installer, (SOLVED)

[Anders Andersson <pipatron@gmail.com>]

On Thu, Apr 4, 2024 at 4:06 AM Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>
> > I have a 128 MB USB flash drive from back in the day that includes a write
> > protect switch.  There are few products today that offer that feature.
>
> Side note: AFAIK this "write protect switch" doesn't prevent writing.
> It just tells your card reader that you'd like to avoid writing to it.
> Whether it ends up doing what you want depends on the hardware exposing
> that info to the driver and the driver paying attention to it.

This is certainly true for SD cards, but as OP is talking about a USB
flash drive, such a switch might very well enforce a physical on-drive
write protection that can't be overridden even by a compromised
operating system. Of course, you never know with proprietary hardware
unless the design is published or someone traced out the connections.