On Sonntag, 29. November 2009, Kay Sievers wrote: > On Sat, Nov 28, 2009 at 23:52, Chris Dellin <cdellin@xxxxxxxxx> wrote: > > I'm having some trouble recently with my installation of udev. I > > expect it to create symlinks for a few devices, but no symlinks are > > created. For example: > > > > udev should create a symlink, as per the rule below: > > $ grep agpgart /etc/udev/rules.d/50-udev.rules > > KERNEL=="agpgart", NAME="misc/%k", SYMLINK+="%k" > > > > However, on boot, no symlink exists (although the /dev/misc/agpgart > > device is properly created). > > > > Once booted, the symlink does exist in the udev database: > > # udevadm info --export-db | grep -A 8 'P: /devices/virtual/misc/agpgart' > > P: /devices/virtual/misc/agpgart > > N: misc/agpgart > > S: agpgart > > E: UDEV_LOG=3 > > E: DEVPATH=/devices/virtual/misc/agpgart > > E: MAJOR=10 > > E: MINOR=175 > > E: DEVNAME=/dev/misc/agpgart > > E: DEVLINKS=/dev/agpgart > > > > I don't quite know how to interpret the results from udevtest, but the > > results are here: > > http://dellin.net/static/temp/udevtest_output.txt > > > > A few other notes: > > - The system is running a recent copy of Gentoo Linux. > > - This started happening when I upgraded my kernel from 2.6.29.5 to > > 2.6.31.6. - The /dev/video0 symlink has the same problem; it should be > > linked to /dev/v4l/video0, which is created correctly. > > > > Any ideas? > > You should not swap kernel node names with symlink names. The primary > name in /dev should always match the name in /sys. In general, on > recent kernels, almost all rules with NAME= should be removed and the > kernel-provided names not be overwritten by userspace config, and only > symlinks (which do no clash with kernel names) added. > I have a similar issue. the lvm2 package on gentoo installs this udev rule: KERNEL=="device-mapper", SYMLINK+="mapper/control" Now udev-147 cries about not being able to create the symlink as kernel-provided name is already set to "mapper/control". So is the only possibility to surpress this warning to adjust the rule to this? KERNEL=="device-mapper", NAME="mapper/control" Matthias -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
