URL: <http://savannah.gnu.org/bugs/?36740>
Summary: FTDI USB Serial Device not recognized and "insmod ehci" freezes grub Project: GNU GRUB Submitted by: prote Submitted on: Mi 27 Jun 2012 18:36:47 CEST Category: None Severity: Major Priority: 5 - Normal Item Group: Software Error Status: None Privacy: Public Assigned to: None Originator Name: Originator Email: Open/Closed: Open Discussion Lock: Any Release: Release: Bazaar - trunk Reproducibility: Every Time Planned Release: None _______________________________________________________ Details: My aim is to have grub terminal over serial line but as the mainboard has no serial connector I bought an USB-Serial dongle but it is not recognized by "usb" on grub command line. Even after insmod uhci or insmod ohci the "usb" command still lists no device. When I enter insmod ehci grub freezes. So I repeated this with a prior "set debug=ehci" and got fast scrolling debug messages which seem to repeat themselves in an endless loop. Once I let this running for 3:30 minutes before pressing the reset button. Unfortunately without a serial console I can't copy the messages to a file. I tried to shoot some pictures/movies but the photo camera didn't catch everything and the video camera has only 25 fps. Shall I attach them nonetheless? I'll attach my transcript of some lines. When the system is booted the agetty on ttyUSB0 works fine though. System is gentoo, amd64 with grub-9999 (which is revision 4532 from bzr) and USE flags for grub_platforms_efi-64 and device-mapper. # lsusb | grep USB-Serial Bus 002 Device 004: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC # cat /proc/tty/driver/usbserial usbserinfo:1.0 driver:2.0 0: name:"FTDI USB Serial Device" vendor:0403 product:6001 num_ports:1 port:1 path:usb-0000:00:1d.0-1.5 The mainboard is an Asus P8P67 DELUXE. _______________________________________________________ File Attachments: ------------------------------------------------------- Date: Mi 27 Jun 2012 18:36:47 CEST Name: transcript.txt Size: 10kB By: prote Video/Photo transcript of ehci debug messages <http://savannah.gnu.org/bugs/download.php?file_id=26115> _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?36740> _______________________________________________ Nachricht gesendet von/durch Savannah http://savannah.gnu.org/ _______________________________________________ Bug-grub mailing list Bug-grub@gnu.org https://lists.gnu.org/mailman/listinfo/bug-grub