On 2008-12-11 12:50 +0100, Jukka Salmi wrote: > Boyd Stephen Smith Jr. --> debian-user (2008-12-08 16:46:46 -0600): >> http://reactivated.net/writing_udev_rules.html > > Thanks, udev(7) is probably what I was looking for. > > I tried two approaches: > > 1) Using built-in persistent symlinks (/dev/disk/...). > 2) Writing custom rules to create symlinks to the desired file system > block devices. > > I then used those symlinks in /etc/fstab and /boot/grub/menu.lst > > While 1) worked fine, I noticed a problem with 2): passing the symlink > to the root file system as the root= kernel option doesn't work ("ALERT! > /dev/root doesn not exist"...). I guess this makes sense since my > custom rule which defines the root file system symlink is in a file on > the root file system (/etc/udev/rules.d/010_local.rules)... But why > does 1) work then? The symlinks I use (/dev/disk/by-id/scsi-XXX-partN) > seem to be defined in /etc/udev/persistent.rules, i.e. also on the root > file system: > > KERNEL=="sd*[!0-9]|dasd[!0-9]*|sr*", ENV{ID_SERIAL}=="?*", \ > SYMLINK+="disk/by-id/$env{ID_BUS}-$env{ID_SERIAL}" > KERNEL=="sd*[0-9]|dasd*[0-9]", ENV{ID_SERIAL}=="?*", \ > SYMLINK+="disk/by-id/$env{ID_BUS}-$env{ID_SERIAL}-part%n" > > Any hints?
Have you rebuilt your initramfs? Udev and the whole /etc/udev directory are copied into it, so you need to run "update-initramfs -u" to have these rules available at boot time. Sven -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
