Re: "udevadm info --attribute-walk --path=/block/sda" doesn't showparents

From: Chris Friesen
Date: Fri Apr 20 2012 - 03:03:40 EST


On 04/18/2012 03:42 PM, Chris Friesen wrote:

I have a 2.6.34.10-based kernel with udev-161 (also tested with udevadm from udev-173).

When I run "udevadm info --attribute-walk --path=/block/sda" it just shows the device
itself, and doesn't walk the whole chain showing the parents.

Is there anything I can do, or am I caught with a kernel that isn't properly supported?
I'm not subscribed to the hotplug list, so cc'ing me would be appreciated.


I don't know what's causing the problem, but I find it suspicious that /sys/block/sda
is a directory rather than a symlink like it is on my 2.6.35.14 laptop. I'm poking
around in the udevadm code now.


Some possibly-useful information:

I forgot to include this....this might be useful as well:

root@typhoon-base-unit0:/root> udevadm info -q path -n /dev/sda
/block/sda



For comparison, on my 2.6.35.14 laptop I get:


[cfriesen@blah log]$ udevadm info -q path -n /dev/sda
/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda


--
Chris Friesen
Software Developer
GENBAND
chris.friesen@xxxxxxxxxxx
www.genband.com
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