InitScriptStatusActions

Revision 11 as of 2008-07-22 22:47:54

Clear message

Overview

The LSB suggests that init scripts provide a status action:

status_of_proc() library function in lsb-base

DustinKirkland has worked with Debian to provide a status_of_proc() method in /lib/lsb/init-functions, which is provided by the lsb-base package. This function is fully integrated in Debian's lsb-3.2-14:

various init script callers

DustinKirkland has provided patches to the key service init scripts that are installable from the Ubuntu Server CD:

OnnoBenschop has provided a script to detect, and compiled a list of init scripts that are lacking status action here:

Countless other init scripts could/should be patched to provide this functionality.

Patch Checklist

When you encounter an init script that lacks a status action:

  1. Determine the source package
    • dpkg -S /etc/init.d/FOO
  2. Open a Bug in Launchpad against the package
  3. Grab the source
    • apt-get source FOO
    • sudo apt-get build-dep FOO
  4. Locate the init script in the source tree, often:
    • debian/*.init
    • debian/rc
  5. Patch the source to
    • have the init script call status_of_proc()
    • have the init script add "status" to the usage statement
    • add a dependency in debian/control for lsb-base >= 3.2-12ubuntu3

    • if you're sending to Ubuntu
      • add the changelog entry referencing your Launchpad bug
  6. Test your patched init script
    • sh debian/FOO.init status
    • echo $?
    • sudo sh debian/FOO.init stop
    • sh debian/FOO.init status
    • echo $?
    • sudo sh debian/FOO.init start
    • sh debian/FOO.init status
    • echo $?
  7. Build a source package
    • debuild -S
  8. Generate a patch
    • debdiff
  9. Compare your work to some of the other patches that did similar things.
  10. Add your patch to the Launchpad bug you filed

Init Scripts that Need a Status Action

The following is a crude list of init scripts in Intrepid that are lacking a "status" action. I say "crude" in that this list was generated on 2008-07-21 by installing the Intrepid Ubuntu (server, ubuntu-desktop, kubuntu-desktop, xubuntu-desktop), and grepping through /etc/init.d for scripts that lacked the string "status)". Please help improve this list by adding/removing init scripts to/from this list, and linking to a bug number. Please leave an informative note in this wiki page's changelog.

You can run dpkg -S /etc/init.d/... to determine the source package of any of the following scripts.

/etc/init.d/... init scripts with associated daemon(s)

  1. acpid
  2. bip - (not in main, but a pet peeve of mine when it goes down, would like a status action)
  3. bluetooth
  4. bootlogd
  5. brltty
  6. dbus
  7. dhcdbd
  8. gdm
  9. hal
  10. kdm
  11. mtab.sh
  12. mysql
  13. mysql-ndb
  14. mysql-ndb-mgm
  15. openvpn
  16. powernowd
  17. pulseaudio
  18. rsync
  19. squid
  20. system-tools-backends
  21. usplash
  22. winbind - patches pending (wiki:247087)

/etc/init.d/... Non-daemon init scripts

No daemon, but detectable status

The following init scripts do not have an associated daemon, however, they do perform actions on the system which could be algorithmically checked. I'm noting some suggested items that could be checked in a 'status' action.

  1. apport - status should look at /proc/sys/kernel/core_pattern
  2. binfmt-support - status should check update-binfmts --display, perhaps
  3. checkfs.sh - status could show the time/date/results of the last check
  4. checkroot.sh - similar to checkfs.sh, perhaps?
  5. mountoverflowtmp - status could check the tmp mountpoint
  6. networking - status could check network connectivity
  7. pcmciautils - status could check lsmod for needed modules
  8. policykit - status could check directory existence and permissions
  9. rmnologin - status could check /var/lib/initscripts/nologin
  10. screen-cleanup - status could check /var/run/screen
  11. single - status could check if in single user mode or not
  12. skeleton - the skeleton init script itself should be enhanced to have a status action!
  13. udev - Scott says that this script should not have a status action; there is an associated daemon, so it certainly could

  14. udev-finish - see udev
  15. urandom - status could check /dev/urandom

No daemon

The following init scripts do not have an associated deamon. On initial review of the code, a 'status' action for these scripts does not necessarily make sense. If you have an idea of a sensible status action, please note the suggestion and move the item to the list above (detectable status).

  1. acpi-support
  2. alsa-utils
  3. bootmisc.sh
  4. console-screen.sh
  5. console-setup
  6. dns-clean
  7. glibc.sh
  8. halt
  9. hostname.sh
  10. hotkey-setup
  11. hwclockfirst.sh
  12. hwclock.sh
  13. keyboard-setup
  14. killprocs
  15. loopback
  16. module-init-tools
  17. mountall-bootclean.sh
  18. mountall.sh
  19. mountdevsubfs.sh
  20. mountkernfs.sh
  21. mountnfs-bootclean.sh
  22. mountnfs.sh
  23. powernowd.early
  24. pppd-dns
  25. procps
  26. rc
  27. rc.local
  28. rcS
  29. readahead
  30. readahead-desktop
  31. reboot
  32. resolvconf
  33. sendsigs
  34. stop-bootlogd
  35. stop-bootlogd-single
  36. stop-readahead
  37. umountfs
  38. umountnfs.sh
  39. umountroot
  40. vbesave
  41. wpa-ifupdown
  42. xserver-xorg-input-wacom