Am 13.09.2013 14:00, schrieb Ingo Saitz: > On Fri, Sep 13, 2013 at 01:14:06PM +0200, Michael Biebl wrote: >> Am 13.09.2013 05:50, schrieb Norbert Preining: >>> On Fr, 13 Sep 2013, Norbert Preining wrote: >>>> * second, what about the udev maintainers specify what changes >>>> to self compiled kernels are necessary when upgrading udev. >>> >>> For those coming here in search of help: >>> CONFIG_DEVTMPFS=y >>> CONFIG_DEVTMPFS_MOUNT=y (might not be necessary, not sure) >> >> As I wrote earlier, CONFIG_DEVTMPFS=y is mandatory now and it needs >> something which mounts the devtmps. Usually it is done by the initramfs >> (in Debian both dracut and initramfs-tools work fine) and if you don't >> use and initramfs for whatever reason, you'll need >> CONFIG_DEVTMPFS_MOUNT=y, so the kernel mounts the devtmpfs for you. > > Note that /etc/init.d/udev chacks for tmpfs to be mounted on / and > mounts it, if not. If you change this to check for and mount devtmpfs, > it still works without CONFIG_DEVTMPFS_MOUNT, only CONFIG_DEVTMPFS is > still needed.
Yeah, CONFIG_DEVTMPFS is always needed. > This should increase compatibility with a number of self-compiled > kernels, since the kernel default for CONFIG_DEVTMPFS_MOUNT still seems > to be "No". You also could suggest to set devtmpfs.mount=1 on the kernel > commandline instead. The Debian kernel doesn't set CONFIG_DEVTMPFS_MOUNT since it relies on the initramfs to mount it. I haven't tested the SysV init script. I think what it currently does, i.e. mounting a tmpfs, is not sufficient: tmpfs != devtmpfs. So if you use no initramfs, you'll need CONFIG_DEVTMPFS_MOUNT (at least for now) Regards, Michael -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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