ReactOS (USB) TO GO

reactosuser7 · Post by **reactosuser7** » Wed Nov 29, 2017 4:57 am

To install ReactOS on a USB stick and use it.
How far we are of it?

Does FreeLdr recognizes USB as installable disks?
Someone who test it...

Could Vgal do the same work as:
http://vgal.ru.com/category/reactos/

milon · Post by **milon** » Thu Nov 30, 2017 11:42 am

Rufus is an easy way to create bootable USB drives from an iso file. I really don't think USB booting works in ReactOS yet. But you could try it and see!

Konata · Post by **Konata** » Thu Nov 30, 2017 11:52 am

milon wrote:Rufus is an easy way to create bootable USB drives from an iso file. I really don't think USB booting works in ReactOS yet. But you could try it and see!

USB booting works, that's a very simplistic way to boot an OS, you don't need actual USB drivers to do it.
IIRC ReactOS Live is a little quirky, I don't know how it'll behave on USB, but it should work. I've never used ReactOS Live but from what I hear, it really just prefers to be installed fully.

Post by **EmuandCo** » Thu Nov 30, 2017 1:53 pm

What, you don't need USB for it?! Who told you that? Tell this a kernel and drivers communicating to your hardware and say that again.

Konata · Post by **Konata** » Fri Dec 01, 2017 12:09 am

EmuandCo wrote:What, you don't need USB for it?! Who told you that? Tell this a kernel and drivers communicating to your hardware and say that again.

I thought UEFI or something could boot from USB, so that the OS didn't strictly need drivers to boot. Maybe I'm confused with something else.

val · Post by **val** » Fri Dec 01, 2017 2:12 am

BIOS could do this too. UEFI should.
But for the OS not having its own USB stack support, there should have been a special means to load everything needed into RAM, not only what an ordinary boot process loads. Thus, for a "live" OS session, kind of "ramdisk" should have been prepared and then loaded (by the loader through BIOS/UEFI).

For the OS installation on a USB mass storage device and making it a boot device and using it, it's not possible without the OS supporting USB. Because using BIOS calls to access its own boot device at run time is a very bad idea, and UEFI provides such a support only for the Boot Services time, it all gets invalidated after ExitBootServices() call made by the OS loader as a final step in taking over control of the system.

milon · Post by **milon** » Sun Dec 03, 2017 3:10 am

It doesn't haven't to be a Live version if we're running off USB. But ReactOS really needs the USB stack & drivers first.

ReactOS (USB) TO GO

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