On Wed, Mar 24, 2004 at 07:12:43PM +0000, Pigeon wrote: | On Wed, Mar 24, 2004 at 12:48:43PM -0500, Derrick 'dman' Hudson wrote: | > On Tue, Mar 23, 2004 at 10:18:59PM -0800, Paul Johnson wrote: | > | "Derrick 'dman' Hudson" <dman@dman13.dyndns.org> writes: | > | | > | > The thing with udev is it is all userspace, therefore it works with | > | > any 2.6 kernel (that has SYSFS in it). You can upgrade udev without | > | > touching your kernel, unlike devfs. I've been using udev for a few | > | > weeks now (since 0.18 arrived in "experimental") and I haven't had | > | > any major problems (only a hurdle or two). | > | | > | OK. So how does it work? You've got my interest piqued. Does it | > | work kinda like devfs, or does it maintain the devices nodes on disk? | > | > Have you booted with a 2.6 kernel yet? If so, take a look in /sys. | | Is this automatic with Debian kernel packages? With a DIY 2.6 I had to | create /sys and mount it by hand (the /etc/fstab entry is as for /proc | but s/proc/sys/g). $ dlocate /etc/init.d/mountkernfs libc6: /etc/init.d/mountkernfs $ dpkg -l libc6 ii libc6 2.3.2.ds1-11 GNU C Library: Shared libraries and Timezone --- excerpt from /etc/init.d/mountkernfs ### sysfs mount # # sysfs is introduced in the middle of kernel 2.5. # The current practice is that /sys is used for mounting sysfs. # sysfs_avail=`grep -ci '[<[:space:]]sysfs' /proc/filesystems || true` sysfs_mounted=`grep -ci '[<[:space:]]/sys' /proc/mounts || true` if [ "$sysfs_avail" != 0 ] && [ "$sysfs_mounted" = 0 ] then mount -t sysfs sysfs /sys fi --- Hmm, maybe I had to create /sys first. At any rate I had created /sys in anticipation of udev before udev was available in a package. I have no entry in /etc/fstab for /sys, and I think I could remove the /proc entry as well (another script, or an earlier part of that one, mounts /proc automatically). -D -- Q: What is the difference between open-source and commercial software? A: If you have a problem with commercial software you can call a phone number and they will tell you it might be solved in a future version. For open-source sofware there isn't a phone number to call, but you get the solution within a day. www: http://dman13.dyndns.org/~dman/ jabber: dman@dman13.dyndns.org
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