DevHeads.net

Postings by Dmitrijs Ledkovs

Re: Get involved -> Development page is down

Hello,

On 2 October 2017 at 21:58, Denis Mekhanikov < ... at gmail dot com> wrote:
I believe that sub-domain is now decommissioned, maybe a redirect
should be put in place to drop people to <a href="http://www.ubuntu.com" title="www.ubuntu.com">www.ubuntu.com</a>. Where did you
find that url?

Change of scope and target market for i386

######
NB! this is a mailing list for developers, and this is a _proposal_
that I want to discuss with the *buntu developers.

Removal of upstart and cgmanager from Artful Aardvark

Upstart and CGManager have been in maintenance mode for a few releases
now. The primary users of upstart & CGManager were Mobile (Unity
Touch) and Unity8 desktop sessions. Upstart is used in those session
to provide user session supervisor and implement application
lifecycle.

Currently, ubuntu-app-launch has been ported to provide application
lifecycle using systemd. However, neither of the two session packages
were ported to kick off touch/unity8 sessions exclusively under
systemd.

partman, recipes, sizing, swap, and all the things

Our classic installers support dynamic sizing relative RAM size by
using percent specification. Most commonly this is used for defining
swap, e.g. 200% for the swap of double the size of ram.

However, nowadays the landscape and purpose of the swap have changed
somewhat. Which in the common case results in swap overallocation.
Specifically, for a long time ubuntu has hibernation disabled by
default and encouraging using only suspend. The common RAM sizes of
machines have gone up significantly. And many systems are configured
with very high RAM-to-disk ratios.

/usr/bin/gpg to be provided by 2.1.x series in Yakkety

Hello,

Recently Debian has switched to 2.1.x by default
<a href="https://lists.debian.org/debian-devel-announce/2016/08/msg00000.html" title="https://lists.debian.org/debian-devel-announce/2016/08/msg00000.html">https://lists.debian.org/debian-devel-announce/2016/08/msg00000.html</a>

And most of the bugs have been fixed by now in the archive, and these
have now made their way to yakkety.

I have requested an FFe which was granted to do the switch in Ubuntu
too.

Installation Media and supportability of i386 in 18.04 LTS Re: Ubuntu Desktop on i386

Hello Bryan,

Let me resurrect this thread. In the context of what we should be
doing in 18.04 and what to do between now and then.

In 2018:
- it will be over 2 years since 3rd party ISVs stopped supporting
software on i386, or even never had it officially
- e.g.

libseccomp 2.3.1 uses negative (pseudo) syscall numbers by default

Hello,

New libseccomp is in yakkety proposed. There is a change, on some
architecutres, w.r.t. to canonical representation of syscall
numbers.....

There are normal syscall numbers and multiplexed ones. And some are
exposed as both - direct numbers and negative pseudo syscall numbers.
All filtering should remain in place for both direct and pseudo
numbers.

But I had to adjust our autopkgtests for this, and I'm wondering if
there are any other pieces of software to fix as a result of this
upstream change on some architectures (e.g.

Archive Reorg Episode VII: Follow Build-Depends

tl;dr - xnox wants to remove 1 344 (35%) source packages from main

Google Doc for suggestions & comments:
<a href="https://docs.google.com/document/d/1dJBtLLCppH2yt664S8G2jB_tK-iWi_D7wqaN6S4ddwI/edit" title="https://docs.google.com/document/d/1dJBtLLCppH2yt664S8G2jB_tK-iWi_D7wqaN6S4ddwI/edit">https://docs.google.com/document/d/1dJBtLLCppH2yt664S8G2jB_tK-iWi_D7wqaN...</a>

Sample old/new germinate output is at:
<a href="http://people.canonical.com/~xnox/germinate-output/" title="http://people.canonical.com/~xnox/germinate-output/">http://people.canonical.com/~xnox/germinate-output/</a>

= Archive Reorg Episode VII: Follow Build-Depends =

== Introduction ==

Loosely this builds up on the existing portions of the Archive Reorg
evolution. To recap, we have 4 components in the archive, which are
defined by their licensing on one axis, and based on seeds for the
other axis. Thus e.g.

Description: add ifenslave and vlan, needed by MAAS, required by Ante

Hi,

iproute2 suite of utilities, and specifically the ip command can do
vlans and network bonding.

Can MAAS use the modern / new commands?
Why are legacy commands being pulled onto the cloud-image?

iproute2 is in minimal, and thus guaranteed to exist even in the
smallest environments.

An excellent guide as to what iproute2 is capable of is available here:
<a href="http://baturin.org/docs/iproute2/" title="http://baturin.org/docs/iproute2/">http://baturin.org/docs/iproute2/</a>

master=my-bond
ip link add $master type bond

master=my-bond
slave=eth0
ip link set $slave master $master

ip link add name eth0.110 link eth0 type vlan id 110

I would like to revert below commit.

Desc

Ubuntu Desktop on i386

Hello,

Ubuntu has an i386 port which is fully supported.

There a bunch of 3rd party applications that rely on the Multi-Arch
technology to support/use i386 binaries on amd64 (e.g. Skype from the
partner archive). BTW, can we ask Microsoft to publish native amd64
binaries, rather than those that rely on multi-arch i386? Also, does
Valve Steam product rely on i386 multiarch binaries? or is it fully
amd64? (and e.g. downloads/bundles/ships any required i386 binaries
that it needs)?

gnupg 2.1.x by default

A growing number of features are desired, yet missing from classic
gnupg (1.4.x series). Specifically support for many gpg smarcards &
tokens, as well as ECC.

I'd like to propose to switch to gnupg 2.1.x by default.

First it would mean upgrading gnupg 2.0.x to 2.1.x. (available in experimental).

Second we need either transition, or actually patching and fixing a
few packages. Most of the patches and transitions are trivial, as
actually usage and output from gpg2 is the same as with gpg.

systemd local bridge

So I've started converting a few things and it seems to work fine.

[Unit]
BindsTo=android- ... at proerty dot name\x3dvalue.target

[Install]
WantedBy=android- ... at proerty dot name\x3dvalue.target

However this cannot deal with "*" / globbing matching as seen in:
vivid/etc/init/android-tools-adbd.conf persist.sys.usb.config=*adb
vivid/etc/init/tethering.conf persist.sys.usb.config=rndis*

Are the glob values actually known there?

upstart-local-bridge plan to support systemd

At the moment upstart-local-bridge is used on the phone in very
specific ways. Android property watcher is run inside the
hardware-support lxc container, and it communicates property changes
to the upstart-local-bridge which makes those changes available to the
system and session inits.

The way property watcher operates will remain the same. However how
the events are exported will need to be modified slightly.

At the moment upstart-local-bridge emits a system upstart event. A few
jobs depend on those.

Please retire extras.ubuntu.com

At the moment do-release-upgrade -d from utopic -> vivid is failing
because extras.ubuntu.com repository does not exist for vivid, it's
failing to fetch and thus upgrade is aborted becase of "possible
network problems".

Can we please stop adding extras.ubuntu.com by default? Not consider
it's absence as failure to upgrade Ubuntu?

gnome-python -> universe

Can we demote gnome-python to universe?

As far as I can tell the only reverse dependency chain is:
compiz -> depends: compiz-gnome -> recommends: python-gconf

Can we port compiz-gnome to using gsettings or something? Is it
actually, in fact, use python-gconf?

Outstanding systemd jobs

I'm going to advertise lp:~upstart-devel/upstart/upstart-jobs again,
which is a branch that stores the result of scanning all init.d
scripts, upstart jobs and systemd units in ubuntu devel and debian
sid.

I've also now run a simple (dumb) script to generate a list of upstart
jobs which do not have neither systemd units nor initscripts.

GnuTLS 2.8 transition for Unicorns

GMP in unicorn is now dual licensed under LGPLv3+ & GPLv2+ [1], thus
software only needs to be compatible with GPLv2 to link against
gnutls28.

Should we transition to gnutls28 by default?
Should we only have gnutls28 in main?

At the moment we have both gnutls26 and gnutls28 in main.

[1] <a href="https://launchpad.net/ubuntu/+source/gmp/2:6.0.0+dfsg-2.3ubuntu1" title="https://launchpad.net/ubuntu/+source/gmp/2:6.0.0+dfsg-2.3ubuntu1">https://launchpad.net/ubuntu/+source/gmp/2:6.0.0+dfsg-2.3ubuntu1</a>

Odd ADT test results

A few ADT tests are red in jenkins:
* bedtools
* epsilon
* ipset

What happens is that newest version is asked to be tested (e.g.
2.19.1-1 src+bin) yet jenkins sees an older version (e.g. 2.17.0-1
src) which doesn't have any tests and thus marks the job as failed.

Imho, job should be marked unstable and auto-retried.

Since this is a source package missmatch -> how come britney sees both
src package and binaries already yet jenkins does not? Are the two not
operating against the same internal mirror?

Unreproducible test results, blocking python2 removal - Re: [Merge] lp:~xnox/gallery-app/fix-sample-dir into lp:gallery-app

I made a merge proposal to resolve compatibility in gallery_app with
next phablet-tools (which is needed to support transition to python3
and python2 supported branches).

See:
<a href="https://code.launchpad.net/~xnox/gallery-app/fix-sample-dir/+merge/210517" title="https://code.launchpad.net/~xnox/gallery-app/fix-sample-dir/+merge/210517">https://code.launchpad.net/~xnox/gallery-app/fix-sample-dir/+merge/210517</a>

A jenkins bot, points that .debs were built for this project and tests
executed on the device.

However, gallery_app is now a click and tests pass when it's build and
tested as a click.

I've fetched the two generated debs (gallery-app and
gallery-app-autopilot) pushed to my mako device, and executed the
tests using "phablet-test-run -v gallery_

Dmraid to Mdadm migration

This cycle a few things were done in mdadm & dmraid packages to
prepare for transition from dmraid to mdadm for a few formats that
mdadm supports.

At the moment it trusty, mdadm has full support to assemble Intel
Matrix Raid and DDF fakeraid arrays, instead of dmraid. At the moment
however, mdadm codepath is disable via a kernel cmdline options
(nomdmonddf nomdmonisw) and thus if both mdadm and dmraid are present
in the initramfs dmraid will complete assembly. With or without kernel
options, dmraid completes assembly if mdadm is not present.

Shutdown / Logout improvements - Call for testing

As part of <a href="https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/967229" title="https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/967229">https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/967229</a>

recently a number of uploads were done to improve shutdown ordering,
such that there is a smoother transition between lightdm shutting down
and plymouth shutdown splash animation appearing. Ideally, upon
shutting down, one shouldn't see intermittently any console messages.

If you in the past, upon shutdown, used to see some white messages on
black background between desktop session tear-down and plymouth
shutdown splash appearing, please consider testing latest trusty
packages of upstart, lightdm and plymouth.

Cross-compile with CMake from SDK Apps to Unity8/Mir

As of latest cmake upload into trusty, it is now trivial to
cross-compile CMake based projects:

One time setup:
$ mk-sbuild --target armhf trusty

Building a package:
$ sbuild -A -d trusty --host armhf package*.dsc

This succeeds for a wide variety of packages:
* mir
* unity8
* ubuntu-system-settings
* ubuntu-settings-components
* unity-notifications
* unity-scope-onlinemusic
* uhub
* uchardet
* and many more...

Since this is built into CMake, one can use cmake direct:
dpkg-architecture -aarmhf cmake ../; make

(given appropriate build-dependencies installed)

With chroots managed by click: