Dear listers, I have a USB hub/switch (ATEN US224) to share a USB keyboard / mouse between two computers.
On one of these computers, the keyboard in the grub2 menu works only if I pre-load ehci.mod (independent of whether "legacy USB support" is enabled in BIOS or not). However, as soon as I load ehci.mod, the partitions present on the hard drive are no longer seen by grub2's ls and I can no longer boot into Windows (Linux still works since it resides on LVM). I.e., BEFORE loading ehci, ls on the grub2 command line shows something like (hd0) (hd0,msdos1) (hd0,msdos2) + some LVM volumes AFTER I load ehci I see (usb0a) (usb0b) (usb0c) (usb0d) + some LVM volumes I assume these correspond the x-in-1 card reader that's connected via USB. Hence I can no longer boot into Windows, which resides on (hd0,msdos1). If there is no other way to get the keyboard working without loading ehci, how do I get the disk partitions 'back'? Any help is greatly appreciated. Best, Richard System info: Ubuntu 14.04 64bit with grub 2.02-beta9; This is an older BIOS-based system (no UEFI). lspci | grep -i usb 00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:12.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller 00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller 00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI2 Controller Hard drive: Model: ATA Samsung SSD 840 (scsi) Disk /dev/sda: 250GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 157GB 157GB primary ntfs boot 2 157GB 250GB 92,8GB primary lvm _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
