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Starting DOS from USB drive

Started by Gunther, September 06, 2010, 11:49:15 PM

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Gunther

#15
September 20, 2010, 06:36:50 PM
Quote from: sinsi, September 20, 2010, at 01:36:32 PMThere is a settting in the BIOS for legacy USB for the mouse and keyboard, enable it and they should both show up as PS/2 devices.

Yes, I know. It's enabled and the mouse pointer doesn't react.

Gunther
Forgive your enemies, but never forget their names.

Gunther

#16
September 20, 2010, 11:28:22 PM
Hallo japheth,

QuoteBtw, here's a sample how to switch to long-mode from DOS and back: http://www.japheth.de/JWasm/Dos64.html

Btw, the program prints out on my DOS: Hello 64bit and hangs. There's something wrong.

Gunther
Forgive your enemies, but never forget their names.

japheth

#17
September 21, 2010, 05:57:21 AM
Quote from: Gunther on September 20, 2010, 11:28:22 PM
Btw, the program prints out on my DOS: Hello 64bit and hangs. There's something wrong.

Are you sure it "hangs"? Because, it is supposed to wait in long mode for a key press. ESC will/should return to DOS, 'r' displays some register contents. Keyboard polling is done at the port level, so you'll have to have a standard keyboard - or a USB one in legacy mode - attached.

Gunther

#18
September 22, 2010, 01:11:01 AM
Quote from: japheth, September 21, 2010, 06:57:21 amAre you sure it "hangs"? Because, it is supposed to wait in long mode for a key press. ESC will/should return to DOS, 'r' displays some register contents. Keyboard polling is done at the port level, so you'll have to have a standard keyboard - or a USB one in legacy mode - attached.

It seems that this is the problem with my old Siemens notebook (BIOS to old). With the newer Toshiba notebook, the application does the job properly.

Gunther
Forgive your enemies, but never forget their names.
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