[arch-general] udev and/or device-mapper problem

[Vincent Van Houtte]

On Thu, 2010-02-11 at 12:50 +0100, Thomas Bächler wrote:
> Am 11.02.2010 11:56, schrieb Karolina Lindqvist:
> >> Your custom kernel is misconfigured, the most likely candidate being:
> >>
> >> $ zgrep CONFIG_SYSFS_DEPRECATED /proc/config.gz
> >> # CONFIG_SYSFS_DEPRECATED_V2 is not set
> >>
> >> If this option is set to yes, udev will fail to create devices properly.
> >> If the option is unset in your kernel, we have to look for the reason
> >> further.
> >>
> > 
> > Thank you for the fast help. That was exectly what I was looking for! I have 
> > rebuilt the kernel with that change, and now it appears to work.
> 
> Glad my crystal ball was right. This option is needed if you run very
> old userspace (udev, ...), but is fatal if you run very recent software.
> With udev prior to 150, it mostly worked, but udev complained about it.
> With udev 150 and later, things will simply fail.

It will also be a headache for the debian devs in uprading stable to
squeeze in a few months. The stable kernel needs this option, but the
new kernel and udev don't and upgrading from an old environment causes
an error in the dist-upgrade.

Just a FYI. It is not Archlinux-related...

Vincent