Hello! Your description of the classic Null-Modem device is correct. The baud rate isn't. it is 115200 not the value you used. ----- Gregg C Levine gregg.drw...@gmail.com "This signature fought the Time Wars, time and again."
On Tue, Sep 17, 2013 at 5:10 PM, Aleš Nesrsta <star...@volny.cz> wrote: >>> # stty -F /dev/ttyUSB0 9600 -echo >>> # cat /dev/ttyUSB0 > ttyUSB0.txt > > > It was 9600 usually, but probably it should be 112500 now, as Vladimir > wrote. > If you want, you can ensure some speed on GRUB side by parameter -s ,e.g.: > serial -s 112500 > > >>> serial >>> terminal_output console serial >>> debug=all >>> insmod ohci >>> insmod ehci >>> ls >> >> I didn't get anything captured, sorry... But with the serial setup, >> >> grub seems to freeze on: >> >> disk/pata.c:274: status=0x50, error=0x0, sectors=0x0 >> kern/disk.c:326: Closing `ata0'. > > > Something changed in GRUB in the meantime, so try this for current trunk > code: > > > serial > terminal_output console serial > debug=all > nativedisk > ls > > > >> My mistake, the adapter is not a null modem. > > At least these pins must be connected by null-modem cable: > 3 - 2 > 2 - 3 > 5 - 5 > This is valid for "classic" 9pin PC connectors on both sides of cable. You > can check the cable by ohmmeter if it is correct. > > > Additionally: > There exist some important USB related patches which are not included in > trunk yet - see the history of mail list and search for posts from me and > Melki Christian some weeks ago. > > BR, Ales > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
