I have a laptop running debian wheezy:
$ uname -a
Linux *pcname* 3.2.0-4-686-pae #1 SMP Debian 3.2.54-2 i686 GNU/Linux
I recently made a debian boot usb like so:
sudo dd if=debian-live-7.4-amd64-gnome-desktop.iso of=/dev/sdb
I remember the usb was not mounted during the dd
but I think after it had finished writing, I tried mount -a
just to see if I could view the files on the boot-usb. It didn't work (the mountpoint didn't show any files and I assumed it was not mounted) and later on I pulled out the usb while the computer was still turned on to go use the usb to install debian wheezy on another laptop.
Now whenever I turn on my laptop it spits the following error over and over:
[ 3221.396136] hub 4-0:1.0: unable to enumerate USB device on port 1
[ 3222.132073] usb 4-1: new full-speed USB device number 52 using ohci_hcd
this never used to happen.
I've done some googling and the other places I have seen mention this [bug?] discuss that it has occured after a kernel update. However I don't think I've even used apt
since the other day when I pulled out the usb, so this can't be the problem for me.
I'm wondering whether the problem may be a lockfile which needs deleting or altering?
Feel free to request additional information and i can add it here. The issue manifests when no usb is plugged in. lsusb
gives:
$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub