group.of.nepali.translators team mailing list archive

[ChristianEhrhardt <1540008@xxxxxxxxxxxxxxxxxx>]

** Tags added: patch

** Also affects: nut (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: nut (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Changed in: nut (Ubuntu Trusty)
       Status: New => Confirmed

** Changed in: nut (Ubuntu Xenial)
       Status: New => Confirmed

** Tags added: server-next

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https://bugs.launchpad.net/bugs/1540008

Title:
  USB permissions not set at install time (udevd name changed?)

Status in nut package in Ubuntu:
  Confirmed
Status in nut source package in Trusty:
  Confirmed
Status in nut source package in Xenial:
  Confirmed

Bug description:
  1) $ lsb_release -rd
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04

  2) nut-server: 2.7.1-1ubuntu1; udev: 204-5ubuntu20.15

  3) On a fresh install of Ubuntu 14.04 (amd64), I installed the nut-
  server package while the UPS was already connected via USB. After
  installation, the permissions described by /lib/udev/rules.d/52-nut-
  usbups.rules should have changed the group of the corresponding
  /dev/bus/usb/*/* node to 'nut'.

  4) The owner/group for the /dev/bus/usb node remained root:root.
  Manually running 'udevadm trigger --subsystem-match=usb
  --action=change' changed the group to 'nut'. (From past experience
  tracking down related udev+nut bugs, unplugging and re-plugging the
  USB cable would yield similar results.)

  However, that udevadm command is included in the postinst for nut-
  server, and it is guarded with a pidof check for 'udevd':

  # ask udev to check for new udev rules
  [ -x /etc/init.d/udev ] && pidof udevd > /dev/null \
        && udevadm trigger --subsystem-match=usb --action=change

  This most likely needs to be amended to include the current process
  name, 'systemd-udevd'. I checked the control files, and unless the
  udevd process name has changed back, I believe this will affect vivid,
  wily and xenial as well as trusty. (I will let someone else add those
  later tags if that turns out to be the case.)

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