Alan Stern wrote: > I'm not familiar with this system design. What is the 2-1 hub device? > Whatever it is, it appears to be the source of your problems. How can I rescue these information? Try with this: $ lsmod Module Size Used by ipv6 284768 31 sg 22624 0 sr_mod 15896 0 cdrom 37048 1 sr_mod loop 14176 0 usb_storage 94995 0 evdev 8940 0 ehci_hcd 33896 0 usbcore 135532 3 usb_storage,ehci_hcd mv643xx_eth 24020 0 libphy 22000 1 mv643xx_eth gpio_keys 3940 0 ext3 126764 3 jbd 47236 1 ext3 mbcache 7892 1 ext3 raid1 21504 1 md_mod 87268 2 raid1 sd_mod 34352 5 crc_t10dif 1744 1 sd_mod sata_mv 24780 4 libata 166712 1 sata_mv scsi_mod 154752 5 sg,sr_mod,usb_storage,sd_mod,libata -- 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