touch-packages team mailing list archive

[Martin Pitt <martin.pitt@xxxxxxxxxx>]

Public bug reported:

As per https://blueprints.launchpad.net/ubuntu/+spec/core-1411-systemd-
migration we aimed for switching the system (not session) init from
upstart to systemd this cycle. As this was by and large a 1.2 man show,
this took a little longer. One of the remaining blockers for switching
the default was to fix NFS (bug 1312976) which is now ready to be
uploaded. There is also juju (bug 1409639, landed upstream now) and maas
(bug 1423613, scheduled), but for those we can work around missing
systemd support by installing upstart on instances.

We are a few days past feature freeze now, bug Steve and I discussed
last week, and we still want to aim for switching the default in vivid.
To be clear, this will affect Ubuntu desktop/server/cloud and the
flavours like Kubuntu, but *NOT* ubuntu-touch. Migration to systemd is
blocked on touch (too old kernels, some unported jobs), and was not
scheduled for vivid. For that we need to fork ubuntu-minimal-touch to
keep upstart (there is a work item on the spec).

I know from at least Kubuntu and Ubuntu GNOME that they are pushing for
switching to systemd. We should get an ack from the others
(Lubuntu/Xubuntu/MATE) before doing the switch; but quite a lot of vivid
users are running systemd already, and I believe we shook out the worst
bugs now.

So if/once the release team generally agrees, these are the things which
need to  happen before switching:

  * Signoff/test from remaining flavours (MATE, Xubuntu, Lubuntu)
  * Land NFS
  * Fork ubuntu-minimal-touch

Operationally, the switch is merely to change s/upstart/systemd-sysv/ in
the seeds, i. e. flip the dependency in ubuntu-minimal. I did that in
https://launchpad.net/~pitti/+archive/ubuntu/systemd, fixed ureadahead,
and verified that upgrades from trusty and utopic cleanly upgrade to
vivid+PPA with removing upstart and installing systemd-sysv.

Around that time I will send a mail to ubuntu-devel-announce@ to warn
about the impending switch, and give some pointers how to boot with
upstart (from grub menu or reinstalling upstart), how to debug
boot/shutdown issues, etc.

Contingency plan: This will trigger wider testing, and most certainly
uncover more integration issues. I'll try to keep up with them, but if
we get to a point where we find that there are too many/too serious
regressions, we can flip the seed back to upstart and get back to the
situation today.

** Affects: ubuntu-meta (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: ubuntu-meta (Ubuntu Vivid)
     Importance: Undecided
         Status: New

** Summary changed:

- FFE: switch system init to systemd [not touch]
+ FFE: switch system init to systemd [not touch] in 15.04

** Also affects: ubuntu-meta (Ubuntu Vivid)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ubuntu-meta in Ubuntu.
https://bugs.launchpad.net/bugs/1427654

Title:
  FFE: switch system init to systemd [not touch] in 15.04

Status in ubuntu-meta package in Ubuntu:
  New
Status in ubuntu-meta source package in Vivid:
  New

Bug description:
  As per https://blueprints.launchpad.net/ubuntu/+spec/core-1411
  -systemd-migration we aimed for switching the system (not session)
  init from upstart to systemd this cycle. As this was by and large a
  1.2 man show, this took a little longer. One of the remaining blockers
  for switching the default was to fix NFS (bug 1312976) which is now
  ready to be uploaded. There is also juju (bug 1409639, landed upstream
  now) and maas (bug 1423613, scheduled), but for those we can work
  around missing systemd support by installing upstart on instances.

  We are a few days past feature freeze now, bug Steve and I discussed
  last week, and we still want to aim for switching the default in
  vivid. To be clear, this will affect Ubuntu desktop/server/cloud and
  the flavours like Kubuntu, but *NOT* ubuntu-touch. Migration to
  systemd is blocked on touch (too old kernels, some unported jobs), and
  was not scheduled for vivid. For that we need to fork ubuntu-minimal-
  touch to keep upstart (there is a work item on the spec).

  I know from at least Kubuntu and Ubuntu GNOME that they are pushing
  for switching to systemd. We should get an ack from the others
  (Lubuntu/Xubuntu/MATE) before doing the switch; but quite a lot of
  vivid users are running systemd already, and I believe we shook out
  the worst bugs now.

  So if/once the release team generally agrees, these are the things
  which need to  happen before switching:

    * Signoff/test from remaining flavours (MATE, Xubuntu, Lubuntu)
    * Land NFS
    * Fork ubuntu-minimal-touch

  Operationally, the switch is merely to change s/upstart/systemd-sysv/
  in the seeds, i. e. flip the dependency in ubuntu-minimal. I did that
  in https://launchpad.net/~pitti/+archive/ubuntu/systemd, fixed
  ureadahead, and verified that upgrades from trusty and utopic cleanly
  upgrade to vivid+PPA with removing upstart and installing systemd-
  sysv.

  Around that time I will send a mail to ubuntu-devel-announce@ to warn
  about the impending switch, and give some pointers how to boot with
  upstart (from grub menu or reinstalling upstart), how to debug
  boot/shutdown issues, etc.

  Contingency plan: This will trigger wider testing, and most certainly
  uncover more integration issues. I'll try to keep up with them, but if
  we get to a point where we find that there are too many/too serious
  regressions, we can flip the seed back to upstart and get back to the
  situation today.

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