[SOLVED]system fails to boot since adding udev rules for automounting

Question

Hello
I have recently been trying to use udev rules to automount, and putting together stuff from the wiki, forums and general googling around have produced the following set of rules:
# automounts usb hdd and pendrives as usbhd-sdx; no messing around with
# volume labels or other confusing stuff
# matches all sdx devices except the internal hdd, sda
KERNEL=="sd[b-z]", NAME="%k", SYMLINK+="usbhd-%k", GROUP="users", OPTIONS="last_rule"
# imports filesystem information
ACTION=="add", IMPORT{program}="/sbin/blkid -o udev -p %N"
# creates mount points and sets up symlinks
ACTION=="add", KERNEL=="sd[b-z][0-9]", SYMLINK+="usbhd-%k", GROUP="users", NAME="%k"
ACTION=="add", KERNEL=="sd[b-z][0-9]", RUN+="/bin/mkdir -p /media/usbhd-%k"
ACTION=="add", KERNEL=="sd[b-z][0-9]", RUN+="/bin/ln -s /media/usbhd-%k /mnt/usbhd-%k"
# global mount options
ACTION=="add", ENV{mount_options}="relatime"
# filesystem-specific mount options (777/666 dir/file perms for ntfs/vfat)
ACTION=="add", ENV{ID_FS_TYPE}=="vfat|ntfs", ENV{mount_options}="$env{mount_options},gid=100,dmask=000,fmask=111,utf8"
# automount ntfs filesystem with ntfs-3g driver
ACTION=="add", KERNEL=="sd[b-z][0-9]", ENV{ID_FS_TYPE}=="ntfs", RUN+="/bin/mount -t ntfs-3g -o %E{mount_options} /dev/%k /media/usbhd-%k", OPTIONS="last_r$
# automount all other file systems
ACTION=="add", KERNEL=="sd[b-z][0-9]", ENV{ID_FS_TYPE}!="ntfs", RUN+="/bin/mount -t auto -o %E{mount_options} /dev/%k /media/usbhd-%k", OPTIONS="last_rule"
# unmounts and removes the mount points
ACTION=="remove", KERNEL=="sd[b-z][0-9]", RUN+="/bin/rm -f /mnt/usbhd-%k"
ACTION=="remove", KERNEL=="sd[b-z][0-9]", RUN+="/bin/umount -l /media/usbhd-%k"
ACTION=="remove", KERNEL=="sd[b-z][0-9]", RUN+="/bin/rmdir /media/usbhd-%k", OPTIONS="last_rule"
This seemed to be working very well unitl I tried to boot this morning and the boot process stopped at "processing UDev events" with the following message:
iTCO_wdt: Unexpected close, not stopping watchdog!
It pauses at this point for 10-15 seconds and then reboots.
Having searched a bit, I found the following similar post on the forums:  http://bbs.archlinux.org/viewtopic.php?pid=459375
Which suggests that the problem might lie with this line:
ACTION=="add", IMPORT{program}="/sbin/blkid -o udev -p %N"
I have renamed the file so that it no longer has the udev .rules extension and now the system boots fine.  Does anyone have any suggestions as to why the above rules might be causing this behaviour and how I might go about fixing it?
Thanks
Last edited by useradded (2010-07-02 22:58:14)

Answer 1

Hey falconindy
That was the final kick up the logical a$$ that I needed to get some kind of grip on udev rules.  I now have a fully functional rule that applies only to /dev/sdxy and not to everything else as well, so no more boot trauma, THANK YOU.
I will mark this thread as solved and post my new rule for the benefit of anyone who might read this.
New rule (no boot problems):
# automounts usb hdd and pendrives as label or as usbhd-sdxy if no label present
# ensures the following is _only_ run for sdxy devices excluding internal hdd, sda
KERNEL!="sd[b-z][0-9]", GOTO="personal_usb_automount_settings_end"
# imports filesystem information
# provides access to following variables:
# ID_FS_UUID; ID_FS_UUID_ENC; ID_FS_VERSION; ID_FS_TYPE; ID_FS_VERSION; ID_FS_LABEL
# accessible via ENV{variable}; $env{variable}|%E{variable}
IMPORT{program}="/sbin/blkid -o udev -p %N"
# Get a label if present, otherwise name usbhd-%k
ENV{ID_FS_LABEL}!="", ENV{dir_name}="%E{ID_FS_LABEL}"
ENV{ID_FS_LABEL}=="", ENV{dir_name}="usbhd-%k"
# creates mount points and sets up symlinks
ACTION=="add", SYMLINK+="%E{dir_name}", GROUP="users", NAME="%k"
ACTION=="add", RUN+="/bin/mkdir -p /media/%E{dir_name}"
ACTION=="add", RUN+="/bin/ln -s /media/%E{dir_name} /mnt/%E{dir_name}"
# global mount options
ACTION=="add", ENV{mount_options}="relatime"
# filesystem-specific mount options (777/666 dir/file perms for ntfs/vfat)
ACTION=="add", ENV{ID_FS_TYPE}=="vfat|ntfs", ENV{mount_options}="$env{mount_options},gid=100,dmask=000,fmask=111,utf8"
# automount ntfs filesystem with ntfs-3g driver
ACTION=="add", ENV{ID_FS_TYPE}=="ntfs", RUN+="/bin/mount -t ntfs-3g -o %E{mount_options} /dev/%k /media/%E{dir_name}", OPTIONS="last_rule"
# automount all other file systems
ACTION=="add",ENV{ID_FS_TYPE}!="ntfs", RUN+="/bin/mount -t auto -o %E{mount_options} /dev/%k /media/%E{dir_name}", OPTIONS="last_rule"
# unmounts and removes the mount points
ACTION=="remove", RUN+="/bin/rm -f /mnt/%E{dir_name}"
ACTION=="remove", RUN+="/bin/umount -l /media/%E{dir_name}"
ACTION=="remove", RUN+="/bin/rmdir /media/%E{dir_name}", OPTIONS="last_rule"
# exit
LABEL=="personal_usb_automount_settings_end"
Last edited by useradded (2010-07-02 22:59:20)