can't rename eth1, but udevmonitor says it is

can't rename eth1, but udevmonitor says it is

[sean darcy]

Using udev-095-17.fc6 on fc6, I'm trying to rename eth1, one of two
ethernet cards:

cat 10-network-interface.rules
KERNEL="eth*", SYSFS{address}="00:a0:24:54:28:cb", NAME="lan"

before modprobe:

ls /sys/class/net
eth0  lo  ppp0  sit0

then I modprobe 3c59x, udevmonitor shows:

UEVENT[1178971722.841091] add@/module/3c59x
UEVENT[1178971722.849159] add@/bus/pci/drivers/3c59x
UEVENT[1178971722.884779] add@/class/net/eth1
UDEV  [1178971723.163556] add@/class/net/lan

BUT,

ls /sys/class/net
eth0  eth1  lo  ppp0  sit0

so /class/net/lan is NOT created.

Why is eth1 created? I though the idea of NAME was that it named the
true device node. SYMLINK  was used when you wanted an extra name.

Thanks for any help.

sean

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Re: can't rename eth1, but udevmonitor says it is

[sean darcy]

After looking around I tried last_rule, in case fedora was messing around:

KERNEL="eth*", SYSFS{address}="00:a0:24:54:28:cb", NAME="lan",
OPTIONS="last_rule"

udevmonitor after modprobe 3c59x gave:

UEVENT[1179076823.191741] add@/module/3c59x
UEVENT[1179076823.199782] add@/bus/pci/drivers/3c59x
UEVENT[1179076823.236176] add@/class/net/eth1

Note that w/out last_rule udev thinks it's creating /class/net lan.
So this looks bad, but it actually does create /class/net/lan!!

ls
eth0  lan  lo  ppp0  sit0


which worked! That is setting up ifcfg-lan caused ifup lan to work and
show up in ifconfig as "lan" interface.

udevmonitor showed on rmmod:

UEVENT[1179077431.405204] remove@/class/net/lan
UEVENT[1179077431.413955] remove@/bus/pci/drivers/3c59x
UEVENT[1179077431.421534] remove@/module/3c59x
UDEV  [1179077431.442336] remove@/class/net/lan

But what I really wanted to do was create a symlink, so I tried:

KERNEL="eth*", SYSFS{address}="00:a0:24:54:28:cb", SYMLINK+="lan",
OPTIONS="last_rule"

This failed. Only eth1 was created.

Also tried
KERNEL="eth*", SYSFS{address}="00:a0:24:54:28:cb", NAME=eth1,
SYMLINK+="lan", OPTIONS="last_rule"

which didn't help.

Any suggestions?

sean

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Re: can't rename eth1, but udevmonitor says it is

[Andrey Borzenkov]

[-- Attachment #1.1: Type: text/plain, Size: 2247 bytes --]

On Sunday 13 May 2007, sean darcy wrote:
> But what I really wanted to do was create a symlink, so I tried:
>
> KERNEL=="eth*", SYSFS{address}=="00:a0:24:54:28:cb", SYMLINK+="lan",
> OPTIONS="last_rule"
>
> This failed. Only eth1 was created.
>

you can't create symlink to interface. You can only rename it (NAME="lan"). If 
this does not work there is some bug somewhere; it works here (udev 110):

SUBSYSTEM=="net", ACTION=="add", ENV{INTERFACE}!="*.*", 
SYSFS{address}=="00:00:39:d7:14:a1", NAME="lan", ENV{MDV_CONFIGURED}="yes"

{pts/0}% sudo udevmonitor
udevmonitor will print the received events for:
UDEV the event which udev sends out after rule processing
UEVENT the kernel uevent

UEVENT[1179079411.685653] add      /module/e100 (module)
UEVENT[1179079411.716449] add      /bus/pci/drivers/e100 (drivers)
UDEV  [1179079411.719899] add      /module/e100 (module)
UDEV  [1179079411.723261] add      /bus/pci/drivers/e100 (drivers)
UEVENT[1179079411.725199] add      /devices/pci0000:00/0000:00:0a.0/eth0 (net)
UDEV  [1179079412.235478] add      /devices/pci0000:00/0000:00:0a.0/lan (net)

{pts/1}% LC_ALL=C ll /sys/class/net
total 0
lrwxrwxrwx 1 root root 0 May 13 22:00 
eth1 -> ../../devices/pci0000:00/0000:00:10.0/0.0/eth1/
lrwxrwxrwx 1 root root 0 May 13 22:00 
irda0 -> ../../devices/virtual/net/irda0/
lrwxrwxrwx 1 root root 0 May 13 22:03 
lan -> ../../devices/pci0000:00/0000:00:0a.0/lan/
lrwxrwxrwx 1 root root 0 May 13 22:00 lo -> ../../devices/virtual/net/lo/


> Also tried
> KERNEL=="eth*", SYSFS{address}=="00:a0:24:54:28:cb", NAME=eth1,
> SYMLINK+="lan", OPTIONS="last_rule"
>
> which didn't help.
>
> Any suggestions?
>
> sean
>
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