Re: [Vserver] Problems with libusb in vservers

From: Ludovic RESLINGER <lr_at_cuivres.net>
Date: Tue 10 Oct 2006 - 16:22:27 BST
Message-ID: <20061010152226.GE17955@bach>

On Mon, Oct 09, 2006 at 10:01:12PM +0200, Daniel Hokka Zakrisson wrote:
> Ludovic RESLINGER wrote:
> >Hi,
> >
> >I have a problem to use USB scanner using
> >libusb in vserver.
> >It seems impossible to access to /proc/bus/usb/*
> >in vserver.
> >I modified the /usr/lib/util-vserver/defaults/vprocunhide-files
> >to add /proc/bus, but there is only /proc/bus/input and /proc/bus/pci.
> >
> >I added the line to fstap to mount /proc/bus/usb but it changed nothing.
> >
> >When I specify /proc/bus/usb in vprocunhide-files, I meet this error
> >when I try to reload vprocunhide:
> >
> >(...)
> >Fixing /proc entries visibility.../proc/bus/usb/: Invalid argument
> >/proc/bus/usb/devices: Invalid argument
> >/proc/bus/usb/005: Invalid argument
> >/proc/bus/usb/005/001: Invalid argument
> >(...)
>
> As expected, since usbfs doesn't support the flags.
>
> The way to get this working is a bit hackish, because you must unhide
> /proc/bus/usb _before_ usbfs is mounted there, alternatively something like:
> vnamespace -n bash
> umount -n /proc/bus/usb
> setattr --~hide /proc/bus/usb
> exit
> should do it. Note that you'll still need to have it in the guest's fstab.
>

Hi,

Thank you for your answer.
Ok, I dit what you told me and now
I've /proc/bus/usb in my vserver,
but I haven't any access to /proc/bus/usb/*.
When I mount usbfs and restart my vserver,
my /proc/bus/usb stay empty in my vserver.

Regards

-- 
    .---.      Ludovic RESLINGER
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Received on Tue Oct 10 16:23:16 2006
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