On Tue, 14 Apr 2015, frederik.hofe wrote: > SanDisk Ultra Fit (32 GB version) > USB 3.0 Flash Drive > > I have this USB stick that works fine when using it with win7 or Linux. > But if I try to boot linux from it (Be it a installation image or > xubuntu installed on it from another usb stick) then I get errors and > the stick gets unresponsive until the machine is hardreseted or the > Flash Drive pullet out and in again. > > I have two machines and it happens on both. > > -Acer Aspire One (Netbook with usb 2.0) > -ASRock Z87 Pro3 + 4670k (this has usb 3.0) > > Here the output on the Acer Aspire One. Kernel Version on the Xubuntu > 14.10 installer image is 3.16.0-23-generic > Durring booting there is a ~14 Sec. pause and then I get this kernel errors: > > usb 1-1: device descriptor read/64, error -110 > usb 1-1: device descriptor read/64, error -71 > usb 1-1: new high-speed USB device number 3 using ehci-pci > usb 1-1: device descriptor read/64, error -71 > usb 1-1: device descriptor read/64, error -71 > usb 1-1: new high-speed USB device number 4 using ehci-pci > usb 1-1: device not accepting address 4, error -71 > usb 1-1: new high-speed USB device number 5 using ehci-pci > usb 1-1: device not accepting address 5, error -71 > usb usb1-port1: unable to enumerate USB device What happens if you unplug the flash drive just after the kernel and initramfs image have been loaded, while the kernel is still initializing? You could then plug it back in while the kernel is searching for the root device. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
