index_mm_open: No such file or directory

index_mm_open: No such file or directory

[Matt Burgess]

[reposted to fix linux-hotplug address, apologies!]

Hi all,

When running the following command...

for NIC in /sys/class/net/* ; do
    INTERFACE=${NIC##*/} udevadm test --action­d $NIC
done

... I see the following output:

run_command: calling: test
adm_test: version 178
builtin_kmod_init: load module index
index_mm_open: No such file or directory

Now, the command actually runs successfully, and the persistent rules
file is correctly generated, but I'm left scratching my head as to what
file/directory is trying and failing to be read.

I've tried building both udev-178 and kmod-4 with '--enable-debug' but
still don't get any additional output.  What am I missing?

Thanks,

Matt.

Re: index_mm_open: No such file or directory

[Lucas De Marchi]

Hi Matt,

On Sat, Jan 21, 2012 at 5:55 PM, Matt Burgess
<matthew@linuxfromscratch.org> wrote:
> Hi all,
>
> When running the following command...
>
> for NIC in /sys/class/net/* ; do
>    INTERFACE=${NIC##*/} udevadm test --action­d $NIC
> done
>
> ... I see the following output:
>
> run_command: calling: test
> adm_test: version 178
> builtin_kmod_init: load module index
> index_mm_open: No such file or directory

You are missing a ".bin" file at /lib/modules/$(uname -r)/. Do you
have all these 3 files below?

modules.alias.bin
modules.dep.bin
modules.symbols.bin

Yes, the message is a bit misleading, I have a patch pending for that
that will be part of kmod 5.


Thanks
Lucas De Marchi

Re: index_mm_open: No such file or directory

[Matt Burgess]

On Sat, 2012-01-21 at 18:09 -0200, Lucas De Marchi wrote:
> Hi Matt,
> 
> On Sat, Jan 21, 2012 at 5:55 PM, Matt Burgess
> <matthew@linuxfromscratch.org> wrote:
> > Hi all,
> >
> > When running the following command...
> >
> > for NIC in /sys/class/net/* ; do
> >    INTERFACE=${NIC##*/} udevadm test --action­d $NIC
> > done
> >
> > ... I see the following output:
> >
> > run_command: calling: test
> > adm_test: version 178
> > builtin_kmod_init: load module index
> > index_mm_open: No such file or directory
> 
> You are missing a ".bin" file at /lib/modules/$(uname -r)/. Do you
> have all these 3 files below?
> 
> modules.alias.bin
> modules.dep.bin
> modules.symbols.bin

Ah, that explains it perfectly, thanks!  The exact scenario here is that
I'm building udev/kmod in a chroot environment from a Fedora 16 host.
Fedora is running a kernel with a module directory
of /lib/modules/3.1.9-1.fc16.x86_64 but my chroot environment
contains /lib/modules/3.2.1.  So, while both the host and my chroot
environment contain all 3 .bin files in their respective modules
directories, because those directories are between the 2 environments, I
see the message above.  As it doesn't appear to have any impact on the
functionality I'm after here, I'm happy enough to leave it as-is.  I'm
guessing though, that a symlink with the same name as the host's module
directory to the chroot environment directory would work around the
issue.

Regards,

Matt.