Is it possible to access /dev/hdc from a VE?

One of my environments (the central backup server) needs to be able to 
burn collections of backups to a dvd.

I tried to solve this by creating the device in the VE (mknod -m 660 
/dev/hdc b 22 0) but I still get a permission error;

It tells me:  unable to open64("/dev/hdc",O_RDONLY): Permission denied

Ir all works fine outside the VE.

I suspect this may be something I can't do in a VE, but I thought I'd 
ask :-)

Steve

Steve Hodges <shodges@iinet.net.au> writes:

> Is it possible to access /dev/hdc from a VE?
>
> One of my environments (the central backup server) needs to be able to
> burn collections of backups to a dvd.
>
> I tried to solve this by creating the device in the VE (mknod -m 660
> /dev/hdc b 22 0) but I still get a permission error;
>
> It tells me:  unable to open64("/dev/hdc",O_RDONLY): Permission denied
>
> Ir all works fine outside the VE.
>
> I suspect this may be something I can't do in a VE, but I thought I'd
> ask :-)

You can -- see the 'devices' and 'devnodes' settings in vzctl.

The process is that you grant access to specific devices to a specific
VE and, once that is done, the kernel allows them to access the device
directly.

Regards,
        Daniel
-- 
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