[Devel] [Q] Connecting a physical HDD/partition to a container

[Stanislav Kinsburskiу]

27 янв. 2016 г. 14:24 пользователь Evgenii Shatokhin <eshatokhin at virtuozzo.com> написал:
>
> 27.01.2016 15:00, Stanislav Kinsburskiy пишет: 
> > 
> > 
> > 27.01.2016 12:58, Evgenii Shatokhin пишет: 
> >> 27.01.2016 13:29, Stanislav Kinsburskiу пишет: 
> >>> 
> >>> 27 янв. 2016 г. 11:12 AM пользователь Evgenii Shatokhin 
> >>> <eshatokhin at virtuozzo.com> написал: 
> >>>> 
> >>>> Hi, 
> >>>> 
> >>>> Is there a way to make a partition of a physical HDD, say, sdb1 
> >>>> directly 
> >>>> available to a container, bypassing ploop? 
> >>>> 
> >>> 
> >>> Hi, 
> >>> 
> >>> There is a way of exposing a device to a container. 
> >>> First of all, you'll need device node in /dev. 
> >>> You can create it manually. 
> >> 
> >> I created it with 
> >> vzctl set 101 --devnodes sdb1:rw --save 
> >> 
> >> The node is now present in the CT. However, if I try to mount it in 
> >> the CT (mount /dev/sdb1 /mnt), no error is reported but mount seems to 
> >> have no effect. No files are seen in /mnt that are present on that 
> >> partition. 
> >> 
> >> So, I guess, additional steps are needed? 
> >> 
> > 
> > You might need sysfs layout. 
> > Please, strace your mount call and send it as a reply (attached). 
> > 
>
> Here it is. 
>
> As far as I can see in strace log, mount tries to open 
> /sys/dev/block/8:17, indeed. This file is present on the host but not in 
> the CT. 
>

Expectable.
Then you have to expose sysfs for this device to the container.
Igor, could you advice, please?

> Regards, 
> Evgenii 
>