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Launchpad now requires Ubuntu 20.04 LTS #15

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Nov 28, 2023
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Launchpad now requires Ubuntu 20.04 LTS #15

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Launchpad now requires Ubuntu 20.04 LTS
cjwatson Nov 20, 2023
cc7a3cd
Clarify requirements for running Launchpad
jugmac00 Nov 28, 2023
bb585d9
Udpate URL for internal Jenkins service
jugmac00 Nov 28, 2023
40452de
Remove references to Dogfood
jugmac00 Nov 28, 2023
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24 changes: 3 additions & 21 deletions how-to/running.rst
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Expand Up @@ -24,20 +24,10 @@ For the host system, any reasonably modern Ubuntu release should work.
Other Linux distributions that have LXD should work too, though we don't
test on them.

For the containers, these instructions should work with Ubuntu 16.04 LTS and
20.04 LTS. We currently test on 16.04, 18.04, and 20.04, with the aim of
upgrading production to 20.04 soon. 22.04 is known not to work yet.
For the containers, these instructions should work with Ubuntu 20.04 LTS.
22.04 is known not to work yet.

.. note::
Ubuntu 22.04 ships with cgroups v2 enabled by default. Since the 16.04
release is too old to support it, the container doesn't get set up properly
as per the profile and isn't usable for setting up Launchpad. So to re-enable
cgroups v1, set the `systemd.unified_cgroup_hierarchy=0` kernel parameter.
For GRUB, this can be done by editing `/etc/default/grub` and
appending the parameter to the `GRUB_CMDLINE_LINUX_DEFAULT` value,
running `update-grub` after that, and rebooting.

Launchpad requires at least Python 3.5 (i.e. newer than Ubuntu 14.04 LTS).
Launchpad requires at least Python 3.8 (i.e. at least Ubuntu 20.04 LTS).
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We'd like Launchpad to run on other operating systems, especially `Debian
GNU/Linux <https://www.debian.org/>`_, so that more people can contribute to
Expand Down Expand Up @@ -127,14 +117,6 @@ getting it installed and configured on your network.

lxc launch ubuntu:20.04 lpdev -p default -p $USER

.. note::
Note that as of now, Launchpad still runs on `ubuntu:16.04` in production,
but will be upgraded to `20.04` in the near future.

You can use `ubuntu:16.04` in the command above instead, but note that for
more recent Ubuntu versions (22.04 and above) it might need some extra steps
(see note in :ref: `Supported Operating Systems <supported_operating_systems>`).

.. note::
If the command above fails with ``Error: No root device could be found``, you may need to run

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