[PVE-User] Share an usb device with a forced dev entry between proxmox and lxc

[Guillaume]

Starting the container in debug mode gives me this :

       lxc-start 20170116153758.481 WARN     lxc_conf - 
conf.c:mount_entry_on_absolute_rootfs:1864 - ignoring mount point 
'/dev/ttyUSB0'
       lxc-start 20170116153758.481 WARN     lxc_conf - 
conf.c:mount_entry_on_absolute_rootfs:1864 - ignoring mount point 
'/dev/ttyUSB1'
       lxc-start 20170116153758.481 WARN     lxc_conf - 
conf.c:mount_entry_on_absolute_rootfs:1864 - ignoring mount point 
'/dev/ttyUSB2'
       lxc-start 20170116153758.482 WARN     lxc_conf - 
conf.c:mount_entry_on_absolute_rootfs:1864 - ignoring mount point 
'/dev/usbsms0'
       lxc-start 20170116153758.482 WARN     lxc_conf - 
conf.c:mount_entry_on_absolute_rootfs:1864 - ignoring mount point 
'/dev/usbsms1'

What does this mean ?

Le 12/01/2017 à 13:01, Guillaume a écrit :
> Hello,
> I'm trying to share an usb 4g key between a proxmox 4.server and a lxc 
> container.
>
> Device is as follow on the server :
> Bus 001 Device 037: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 
> HSDPA Modem / E230/E270/E870 HSDPA/HSUPA Modem
>
> I created this udev rule on the server to have a fixed endpoint in /dev :
> /etc/udev/rules.d/10-usbsms.rules
> ACTION=="add", KERNEL=="ttyUSB[0-9]*", ATTRS{idVendor}=="12d1", 
> ATTRS{idProduct}=="1003", GROUP="dialout", MODE="0666", 
> SYMLINK+="usbsms%n"
>
> Result in /dev :
> crw-rw-rw-  1 root dialout 188,   0 Jan 12 12:40 ttyUSB0
> crw-rw-rw-  1 root dialout 188,   1 Jan 12 12:40 ttyUSB1
> crw-rw-rw-  1 root dialout 188,   2 Jan 12 11:17 ttyUSB2
> ...
> drwxr-xr-x  2 root root          60 Dec 20 10:47 usb
> lrwxrwxrwx  1 root dialout        7 Jan 12 12:40 usbsms0 -> ttyUSB0
> lrwxrwxrwx  1 root dialout        7 Jan 12 12:40 usbsms1 -> ttyUSB1
>
> On my container configuration file, i mount the device :
> lxc.aa_profile: unconfined
> lxc.cgroup.devices.allow: c 188:* rwm
> lxc.cgroup.devices.allow: c 189:* rwm
> lxc.mount.entry: /dev/bus/usb/001 dev/bus/usb/001 none 
> bind,optional,create=dir
> lxc.mount.entry: /dev/ttyUSB0 dev/ttyUSB0 none bind,optional,create=file
> lxc.mount.entry: /dev/ttyUSB1 dev/ttyUSB1 none bind,optional,create=file
> lxc.mount.entry: /dev/ttyUSB2 dev/ttyUSB2 none bind,optional,create=file
> lxc.mount.entry: /dev/usbsms0 /dev/usbsms0 none bind,optional,create=file
> lxc.mount.entry: /dev/usbsms1 /dev/usbsms1 none bind,optional,create=file
>
> Here's the result on my container :
> ~# lsusb
> Bus 006 Device 002: ID 03f0:1027 Hewlett-Packard Virtual keyboard and 
> mouse
> Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 037: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 
> HSDPA Modem / E230/E270/E870 HSDPA/HSUPA Modem
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 005 Device 006: ID 0c45:7401 Microdia TEMPer Temperature Sensor
> Bus 005 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 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>
> ~# ll /dev
> total 4
> drwxr-xr-x  8 root root       560 Jan 12 12:54 ./
> drwxr-xr-x 22 root root      4096 Jan 12 12:54 ../
> ...
> crw-rw-rw-  1 root dialout 188, 0 Jan 12 12:40 ttyUSB0
> crw-rw-rw-  1 root dialout 188, 1 Jan 12 12:40 ttyUSB1
> crw-rw-rw-  1 root dialout 188, 2 Jan 12 11:17 ttyUSB2
> ...
>
> No /dev/usbsms* entries.
>
> And if i try to create a udev rules on the container side instead :
> SUBSYSTEM=="tty", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1003", 
> GROUP="dialout", MODE="0666", SYMLINK+="usbsms%n"
>
> I got nothing either in /dev
>
> Any hint ?
> Thanks,
>