Re: Network manager not handling interfaces

[Dan Williams <dcbw redhat com>]

On Mon, 2011-11-21 at 19:28 -0500, Githin Alapatt wrote:
> Thanks Dan!
> Those are very much possible. I recently upgraded from lenny to
> squeeze using apt-get dist upgrade.
> 
> However, if I configure my eth0 card using the
> /etc/network/interfaces, things work perfectly.

Hmm, this is quite odd.  It's not showing the hierarchy that we'd expect
here.  Try this:

ls -al /sys/class/net/eth0/device/driver

and lets see what you get.  You should see something like this:

lrwxrwxrwx. 1 root root 0 Nov 21 13:24 /sys/class/net/eth0/device/driver
-> ../../../bus/pci/drivers/e1000e

which is where udev should be getting the 'driver' link from.  Did you
build the kernel yourself, or is it the standard distro kernel?

Dan

> I used ndiswrapper previously to get my wlan working in lenny. Worked
> perfectly for 2 years until the upgrade.
> 
> May be I did not upgrade correctly.
> 
> Here are the outputs.
> 
> Looking at device '/class/net/eth0':
>     KERNEL=="eth0"
>     SUBSYSTEM=="net"
>     DRIVER==""
>     ATTR{addr_len}=="6"
>     ATTR{dev_id}=="0x0"
>     ATTR{iflink}=="2"
>     ATTR{ifindex}=="2"
>     ATTR{features}=="0x10803"
>     ATTR{type}=="1"
>     ATTR{link_mode}=="0"
>     ATTR{address}=="00:23:ae:0c:99:f4"
>     ATTR{broadcast}=="ff:ff:ff:ff:ff:ff"
>     ATTR{carrier}=="1"
>     ATTR{dormant}=="0"
>     ATTR{operstate}=="up"
>     ATTR{mtu}=="1500"
>     ATTR{flags}=="0x1003"
>     ATTR{tx_queue_len}=="1000"
> 
>   looking at parent device '/class/net':
>     KERNELS=="net"
>     SUBSYSTEMS=="subsystem"
>     DRIVERS==""
> 
>   looking at device '/class/net/wlan0':
>     KERNEL=="wlan0"
>     SUBSYSTEM=="net"
>     DRIVER==""
>     ATTR{addr_len}=="6"
>     ATTR{dev_id}=="0x0"
>     ATTR{iflink}=="3"
>     ATTR{ifindex}=="3"
>     ATTR{features}=="0x1000"
>     ATTR{type}=="1"
>     ATTR{link_mode}=="0"
>     ATTR{address}=="00:23:4e:36:29:0a"
>     ATTR{broadcast}=="ff:ff:ff:ff:ff:ff"
>     ATTR{operstate}=="down"
>     ATTR{mtu}=="1500"
>     ATTR{flags}=="0x1002"
>     ATTR{tx_queue_len}=="1000"
> 
>   looking at parent device '/class/net':
>     KERNELS=="net"
>     SUBSYSTEMS=="subsystem"
>     DRIVERS==""
> 
> 
> 09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040
> PCI-E Fast Ethernet Controller (rev 12)
> 0b:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g
> LP-PHY (rev 01)
> 
> 
> On 11/21/11, Dan Williams <dcbw redhat com> wrote:
> > On Thu, 2011-11-17 at 09:25 -0500, Githin Alapatt wrote:
> >> I recently upgraded from lenny to squeeze. I used to manage my
> >> networks using the gnome applet.
> >>
> >> In the new installation, network manager fails to show up any of my
> >> network device. I made sure that the interfaces are not listed in
> >> /etc/network/interface (I commented them out). Still the network
> >> manager fails to show any device (eth0 and wlan0)
> >>
> >> I can use eth0 by configuring it with the /etc/network/interface. That
> >> works fine.  But, I would like to use the network manager, whenever I
> >> need to use my laptop on an wi-fi connection.
> >>
> >> What else could be wrong?
> >
> > These two  lines are the problem:
> >
> > Nov 17 23:40:15 debian-githin NetworkManager[3085]: <warn>
> > /sys/class/net/eth0: couldn't determine device driver; ignoring...
> > Nov 17 23:40:15 debian-githin NetworkManager[3085]: <warn>
> > /sys/class/net/wlan0: couldn't determine device driver; ignoring...
> >
> > This indicates a problem with either udev or that the kernel network
> > drivers you're using are buggy.  What kinds of devices are the ethernet
> > card and the wifi card?  One thing you can do to figure it out is:
> >
> > udevadm info --query=all --attribute-walk --path=/sys/class/net/eth0
> > udevadm info --query=all --attribute-walk --path=/sys/class/net/wlan0
> >
> > and reply with the results.
> >
> > Dan
> >
> >
> 
>