Public bug reported:
Running e. g. "/etc/init.d/networking status" runs a pager (less by
default). This is unexpected from an init.d script, and potentially
breaks scripts or CLI programs that do this operation, as this then
hangs eternally in the interactive pager process until the user quits
it. This reportedly happens with "vagrant up" (see original Debian bug
https://bugs.debian.org/765175).
SRU INFORMATION:
Test case:
Run "/etc/init.d/networking status". In current xenial this invokes less which
you need to quit. With the proposed fix this should return to the shell
immediately without a pager.
Regression potential: very low. The main visible change is the
interactive usage of "/etc/init.d/foo status", but nothing in Ubuntu
(nor hopefully anywhere else) *relies* on the fact that systemctl
invokes a pager, particularly as this is not always done (it depends on
whether stdout is a terminal and how many lines are written).
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: Fix Committed
** Affects: systemd (Ubuntu Xenial)
Importance: Undecided
Status: New
** Affects: systemd (Debian)
Importance: Unknown
Status: Unknown
** Also affects: systemd (Ubuntu Xenial)
Importance: Undecided
Status: New
** Bug watch added: Debian Bug tracker #765175
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=765175
** Also affects: systemd (Debian) via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=765175
Importance: Unknown
Status: Unknown
** Changed in: systemd (Ubuntu)
Status: New => In Progress
** Changed in: systemd (Ubuntu)
Assignee: (unassigned) => Martin Pitt (pitti)
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https://bugs.launchpad.net/bugs/1576409
Title:
calling init.d script with "status" invokes pager
Status in systemd package in Ubuntu:
Fix Committed
Status in systemd source package in Xenial:
New
Status in systemd package in Debian:
Unknown
Bug description:
Running e. g. "/etc/init.d/networking status" runs a pager (less by
default). This is unexpected from an init.d script, and potentially
breaks scripts or CLI programs that do this operation, as this then
hangs eternally in the interactive pager process until the user quits
it. This reportedly happens with "vagrant up" (see original Debian bug
https://bugs.debian.org/765175).
SRU INFORMATION:
Test case:
Run "/etc/init.d/networking status". In current xenial this invokes less
which you need to quit. With the proposed fix this should return to the shell
immediately without a pager.
Regression potential: very low. The main visible change is the
interactive usage of "/etc/init.d/foo status", but nothing in Ubuntu
(nor hopefully anywhere else) *relies* on the fact that systemctl
invokes a pager, particularly as this is not always done (it depends
on whether stdout is a terminal and how many lines are written).
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1576409/+subscriptions
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